4200mm x 230mm x 7.5mm Wood Grain Fiber Cement Weatherboard

 Our 7.5mm Fiber Cement Weatherboard is the ultimate exterior cladding solution that perfectly bridges the gap between natural timber aesthetics and modern industrial durability. Featuring a deeply embossed, realistic cedar wood grain texture, this board delivers the timeless, warm look of traditional lap siding without any of the high-maintenance drawbacks of real wood.

Engineered with a 4200mm ultra-long specification and a 230mm wide profile, it minimizes horizontal joints, provides faster wall coverage, and creates sleek, continuous shadow lines. It is an ideal choice for residential villas, commercial facades, and modular housing projects seeking long-lasting curb appeal.

Technical Specifications

Property	Specification
Dimensions	4200mm (Length) × 230mm (Width)
Thickness	7.5mm (Optimal balance of strength and flexibility)
Surface Finish	Embossed Cedar Wood Grain / Timber Texture
Core Material	High-Grade Portland Cement, Silica Sand, Natural Cellulose Fiber
Fire Rating	Class A1 (Non-combustible)
Asbestos Content	100% Non-Asbestos
Installation Method	Overlap / Lap Siding (Horizontal)
Edge Profile	Square Edge

 

Why Choose Our 230mm x 4200mm x 7.5mm Fiber Cement Siding?

• Natural Aesthetics: Realistic wood grain texture for a high-end timber-look finish.
• Seamless Design: 4200mm extra length means fewer joints and faster coverage.
• Maximum Safety: Class A1 fire-rated, non-combustible material.
• Extreme Durability: 100% water, rot, mold, and termite resistant.
• Low Maintenance: No warping, peeling, or regular repainting needed.
• Easy Workability: Can be cut and installed using standard carpentry tools.

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Premium 8mm/12mm Through color Facade Panels

 "European Design Standards, Factory-Direct Efficiency." Our Premium Through-Color Facade Panels provide the exact same raw tactile appeal, density, and structural longevity as top-tier European brands like Equitone and Swisspearl.

 8mm Panels — Efficient Elegance: The industry standard for Rear-Ventilated Rainscreen (RVR) systems. It optimizes structural dead load while providing exceptional wind-load resistance. Ideal for large-scale commercial facades, corporate offices, and modern residential developments.

 12mm Panels — Heavy-Duty Rigidity: Engineered for high-impact zones, monumental panel dimensions, and premium concealed fixing systems (such as undercut anchors). Ideal for ground floors, public transport hubs, institutional buildings, and luxury villas requiring ultimate flatness and structural presence

 

Physical Property	Technical Value	Standard Compliance
Nominal Thickness	8mm+/-0.3mm/ 12mm+/- 0.5mm}	EN 12467 / ASTM C1186
Density	1.40 - 1.55 g/cm3	High-Density pressed
Bending Strength (Flexural)	≥18 MPa (Class 4/Category A)	High wind-load capacity
Fire Classification	Class A1 Non-Combustible	EN 13501-1
Moisture Movement	≤ 0.15%(Wet to Dry)	Outstanding dimensional stability
Surface Finishes	Natural Raw Matte, Linear Brushed, Sandblasted	Architectural Grade

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Fiber cement decking vs. WPC decking

 Both Fiber Cement Decking and WPC (Wood-Plastic Composite) Decking are highly popular alternatives to traditional timber, designed to solve the issues of rotting, warping, and high maintenance. However, they are made from fundamentally different materials, resulting in distinct performance profiles.

 

Summary Comparison Table

Feature	Fiber Cement Decking	WPC Decking
Primary Material	Cement + Cellulose Fiber	Plastic + Wood Flour
Fire Rating	Non-combustible (Class A)	Combustible (Class B/C/Unrated)
Dimensional Stability	Excellent (No expansion/contraction)	Poor (Expands/contracts with temp)
Maintenance	Low (May need repainting after 10-15 years)	Very Low (No painting/sealing ever)
Termite/Rot Resistance	Excellent	Excellent
Splintering/Warping	None	None
Installation	Harder (Heavy, dust control needed)	Easier (Standard tools, hidden clips)
Best For	Commercial, high-rise balconies, bushfire zones, regions with extreme temperature swings	Residential decks, low-maintenance backyards, DIY projects

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Can HPL MgO Boards be used in wet areas like bathrooms and commercial kitchens?

 Yes, absolutely. HPL MgO Boards are highly suited for wet and high-humidity environments like residential bathrooms, commercial public restrooms, and industrial kitchens.

In fact, they are frequently specified over traditional materials like drywall, greenboard, or PVC panels in these zones because they solve two problems simultaneously: they provide a 100% waterproof, chemical-resistant decorative surface while maintaining an inorganic, mold-proof structural core.

However, using them successfully in wet areas depends entirely on specifying the correct core formulation and executing proper edge-sealing installation.

Why HPL MgO Boards Excel in Wet Areas

The hybrid structure of the panel gives it unique advantages under wet conditions:

• Zero Mold or Bacterial Growth: Mold requires organic material (like the paper facing on drywall or wood components) to grow. Because both HPL (melamine/phenolic resin) and MgO (magnesium minerals) are entirely inorganic, the board will not support mold, mildew, or fungus, even if water penetrates the wall cavity.
• High Impact and Scratch Resistance: Commercial kitchens and public restrooms experience heavy wear from utility carts, pots, and high human traffic. The dense HPL shell prevents gouges and dents that would otherwise create pockets where moisture and bacteria collect.
• Chemical and Steam Immunity: Commercial kitchens are subjected to high-temperature steam and harsh chemical degreasers, while bathrooms deal with constant hot water and bleach cleaners. HPL resists chemical stains and will not delaminate or soften under steam exposure.

Thickness Recommendations for Wet Areas

• 4mm - 6mm: Best for direct glue-down application over existing solid backing walls (like old tiling or blockwork) in commercial kitchens, using a waterproof structural adhesive.
• 8mm - 12mm: The industry standard for full-height wall partitions or wall linings mounted to aluminum/steel studs in commercial shower facilities and public restrooms.
• 15mm - 18mm: Ideal for self-supporting toilet cubicles, urinal screens, and vanity countertop substrates.

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3mm to 6mm Sanded Mgo board used for HPL /PVC Lamination

 Using 3mm to 6mm Sanded MgO Boards as a substrate for HPL or PVC lamination represents a highly specialized, precision-driven segment of the building materials industry. Thin MgO boards (3mm, 4mm,5mm and 6mm) laminated with a decorative face are the gold standard for lightweight marine partitions, high-end RV interiors, cleanroom ceiling tiles, fire-rated wall panels, and commercial cabinetry cladding.

However, laminating on thin sheets introduces unique structural and manufacturing challenges that do not exist with thicker (9mm-12mm) boards. Below is the technical breakdown and production logic required to successfully process 3mm to 6mm sanded MgO boards for lamination.

Application Breakdown by Thickness

• 3mm to 4mm Sanded MgO:
  • Primary Use: PVC foil lamination or very thin micro-HPL overlays.
  • Applications: Lightweight ceiling tiles (e.g., sag-free cleanroom ceilings), internal linings for cruise ships, trains, and recreational vehicles (RVs) where every kilogram matters.
  • Key Characteristic: Highly flexible, requiring delicate handling on automated conveyor lines to prevent snapping before lamination.
• 5mm to 6mm Sanded MgO:
• Primary Use: Standard HPL lamination (0.5mm- 1.0mm face thickness).
• Applications: Modular cleanroom wall linings, hospital wall cladding panels, flush fireproof door skins, and architectural column covers.
• Key Characteristic: Provides excellent impact resistance and structural rigidity while maintaining a slim profile that mounts flush with standard architectural framing tracking.

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Sanded MgO Board vs Fiber Cement Board

 

When deciding between Sanded MgO (Magnesium Oxide) Board and Fiber Cement Board (FCB) for high-performance building projects, the choice often comes down to the specific technical demands of the application. While both are excellent non-combustible alternatives to drywall and plywood, they behave very differently under the drill, in humid environments, and during installation

Dimensional Accuracy & Surface Finish

• Sanded MgO Board: The defining feature of a sanded MgO board is that it undergoes mechanical wide-belt calibration. This eliminates the rough "screen layer" or mold imperfections on the back side. It delivers an ultra-precise thickness tolerance (typically +/-0.2mm) and a perfectly level, micro-roughened surface. This makes it the superior choice for lamination (HPL, PVC, veneers) and acoustic subflooring where gaps cannot be tolerated.
• Fiber Cement Board: FCB is typically pressed and cured (often autoclaved). While smooth on one side, it lacks the precise, calibrated thickness uniformity of a sanded MgO board. Thickness variances are generally wider, which can create minor lippage or uneven joints when boards are butt-together in subflooring or seamless wall applications.

2. Chemical Composition & Corrosion Risks

• Sanded MgO Board (Sulfate-based): High-quality modern MgO boards utilize Magnesium Sulfate (MgSO4) instead of Magnesium Chloride (MgCl2).
• The Advantage: Sulfate-based boards are 100% chloride-free, meaning they do not suffer from the "sweating/crying" phenomenon in humid climates, and they will not corrode steel studs, mesh, or structural metal fasteners (such as SUS 316 anchors).
• Fiber Cement Board: Made of Portland cement, cellulose fibers, sand, and water. It is chemically stable and inert, posing zero risk of metal corrosion. However, it contains crystalline silica, which poses health hazards (silicosis) during dry cutting on-site.

3. Workability, Installation, and On-Site Handling

• Sanded MgO Board: Despite its high structural density, MgO is surprisingly resilient and "elastic" compared to cement. It is significantly easier to drill, score, and screw close to the edge without cracking or blowout. This makes it highly efficient for framing trials and fast on-site installation. It is also generally lighter than fiber cement of the same thickness.
• Fiber Cement Board: FCB is dense, rigid, and brittle. It requires specialized carbide-tipped or diamond blades to cut, generating heavy dust. Fastening requires pre-drilling or specific high-torque self-tapping screws; attempting to drive screws near the edge without pre-drilling frequently results in corner cracking or fracturing.

4. Moisture Performance & Structural Integrity

• Sanded MgO Board: Does not absorb moisture easily, and even if saturated, it retains its dimensional stability and nearly 100% of its structural flexural strength once dried. It does not swell or delaminate, making it ideal for high-humidity interiors or as a resilient rainscreen backing.
• Fiber Cement Board: Highly water-resistant and will not rot. However, it has a higher rate of hydrothermal movement (expansion and contraction due to temperature and moisture changes). If used outdoors or in wet areas, strict expansion joint spacing must be followed to prevent buckled joints or cracked tiles.

·        Technical Comparison

Feature / Property	Sanded MgO Board (MgSO4​)	Fiber Cement Board (FCB)
Thickness Tolerance	Excellent (+/-0.2 mm) — Calibrated and sanded	Moderate — Subject to standard manufacturing variance
Primary Structural Best Use	Lamination cores (SIPs), High-end Subflooring, Fire-rated ceilings	Exterior siding, Tile backer, Heavy-duty industrial cladding
Workability	Easy to cut, score, drill, and screw without pre-drilling	Hard/brittle; requires specialized blades and pre-drilling
Health & Safety	Silica-free, non-toxic dust	Contains Crystalline Silica (requires strict dust control)
Corrosion Risk	Zero (Assuming Premium Sulfate/Chloride-free)	Zero
Weight & Density	Lighter weight per volume; high strength-to-weight ratio	Heavier, denser, and more rigid

 

 

Summary Verdict

• Choose Sanded MgO Board if: Your project involves secondary lamination (SIPs, cleanroom panels, firedoors), requires a perfectly flat subflooring base with tight thickness tolerances, or is located in a highly humid environment where ease of installation and tool-wear savings are priorities.
• Choose Fiber Cement Board if: You are installing standard lap siding or budget-conscious exterior cladding where precision thickness calibration is secondary to raw, cementitious mass and weather weathering history.

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High Moisture Resistant Modified Magnesium Oxide Board

 Modified Magnesium Oxide (MgO) boards are specialized building materials engineered to overcome the historical weaknesses of standard MgO panels—specifically "crying" (leaching moisture) and salt-related corrosion. High moisture resistant versions typically utilize a Magnesium Sulfate (MgSO4) chemistry rather than the traditional Magnesium Chloride (MgCl2).

The Chemistry: Sulfate vs. Chloride

The primary factor in moisture resistance is the bonding salt used during the manufacturing process.

• Standard MgO (Chloride): Highly hygroscopic. In humid environments, chloride ions can absorb atmospheric moisture, leading to "sweat" on the board surface. This moisture is often acidic and can corrode metal studs, screws, and fixings.
• Modified MgO (Sulfate): By replacing chloride with sulfate, the board becomes much more stable in high-humidity zones. It does not absorb water from the air, effectively eliminating the risk of leaching and metal corrosion.

 

Key Performance Characteristics

High-quality modified MgO boards are designed for harsh environments like tunnels, coastal areas, and exterior facades.

Feature	Performance Specification
Fire Rating	Non-combustible, often achieving Class A1 (EN 13501-1).
Moisture Stability	Minimal linear expansion even when fully saturated.
Durability	Resistant to mold, mildew, and termites; does not rot or disintegrate.
Mechanical Strength	High flexural strength; suitable for high-impact zones.
Eco-Friendly	Low carbon footprint; typically free of asbestos, formaldehyde, and silica.

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Through-Color Fiber Cement Panels with Fine Sanding Lines

 What are Through-Color Fiber Cement Panels?

Unlike standard fiber cement boards that are surface-painted, through-color fiber cement (also known as integrally colored) features pigments that are blended into the raw materials during the manufacturing process.

The Advantage of Integral Pigmentation

• Seamless Edges: When the panel is cut on-site, the color of the core matches the surface. This eliminates the need for edge painting and hides the visibility of minor chips or scratches.
• Long-Lasting Vibrancy: Because the color is not just a skin, it resists fading and peeling even under intense UV exposure.

The Beauty of Fine Sanding Lines

The fine sanding line finish (often called a brushed or striated texture) is a mechanical treatment that adds delicate, linear grooves to the surface of the panel.

1. Interplay of Light and Shadow

The fine grooves react dynamically to natural light. As the sun moves throughout the day, the texture creates subtle shadows, giving the building a "living" facade that changes appearance depending on the angle of observation.

2. Sophisticated Matte Aesthetic

The sanding process reduces glare, providing a refined matte finish that fits perfectly with minimalist and industrial architectural styles.

3. Masking Surface Imperfections

While a perfectly smooth panel might highlight dust or slight impact marks, the fine sanding lines naturally conceal minor surface wear, maintaining a "new" look for longer.

 

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Mgo board flat roofing sheet

 In a flat roofing system, MgO (Magnesium Oxide) boards act as a high-performance structural substrate or cover board. They are increasingly replacing traditional OSB (Oriented Strand Board), plywood, or gypsum-based boards due to their superior fire rating and moisture resistance.

Here is the technical breakdown of using MgO boards for flat roofing：

1. The Core Functional Role

In a flat roof assembly, the MgO board is typically installed over the metal or wood framing to provide a solid, flat surface for the waterproof membrane.

• A1 Fire Rating: Essential for commercial projects with strict fire codes. It acts as a fire barrier between the building interior and the external roofing membrane.
• Compression Strength: It provides a rigid base that protects the insulation layer from being crushed by foot traffic during maintenance.
• Dimensional Stability: Unlike wood-based sheets, MgO boards exhibit minimal expansion or contraction (low linear thermal expansion), which prevents the waterproof membrane from tearing at the joints.

2. Critical Specification: Sulfate-based vs. Chloride-based

For flat roofing, Sulfate-bonded MgO boards (Magnesium Sulfate) are the industry standard for high-end or industrial projects.

• The Corrosion Risk: Standard "Chloride" MgO boards can "sweat" (release salty moisture) in high-humidity roof cavities. This moisture is highly corrosive to the metal screws (fasteners), steel joists, and aluminized steel frames typically found in flat roof assemblies.
• The Sulfate Advantage: Sulfate boards are "chloride-free," meaning they will not cause the fasteners to rust or the structural steel to corrode over time.

3. Common Technical Specifications

Feature	Typical Requirement for Flat Roofs
Common Thickness	12mm, 15mm, or 18mm (depending on span and load)
Edge Profile	Square Edge (for standard layouts) or Tongue & Groove (T&G) (to prevent vertical displacement between boards)
Density	High Density (> 1,000 kg/m³) is preferred for structural strength
Flexural Strength	Must meet local building codes for roof loading (wind uplift and live load)

 

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Mgo board outdoor application

 Magnesium Oxide (MgO) board is highly effective for outdoor applications, provided it is used correctly—primarily as a substrate rather than a finished exterior surface. While it is naturally moisture-resistant and non-combustible, it is not "waterproof" in the sense of being a final weather barrier.

 Primary Outdoor Uses

• Wall Sheathing: As a direct replacement for plywood or OSB, providing superior fire resistance and mold protection.
• Soffits and Fascia: Excellent for these areas due to its resistance to rot and high humidity.
• Roof Decking: Used as a fire-rated base layer under roofing materials.

Choosing the Right Board

• Sulfate vs. Chloride: For outdoor use, Magnesium Sulfate (MgSO₄) boards are generally preferred. They are significantly less prone to "sweating" (leaching salt/moisture) and are less corrosive to metal fasteners than standard Chloride-based boards.
• Density: Ensure you are using a high-density "Exterior Grade" board, which typically has lower water absorption rates.

Pros & Cons for Exterior Use

Feature	Benefit for Outdoors
Fire Rating	Class A1 Non-combustible; ideal for wildfire-prone areas.
Mold/Pests	Inorganic and high pH; will not support mold or attract termites.
Dimensional Stability	Does not warp or swell like wood-based products when damp.
Freeze-Thaw	Performs well in extreme temperature shifts without cracking.

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What is Fiber Cement Flat Roofing?

 Fiber cement Board  is a composite material made of Portland cement, cellulose fibers, and mineral fillers. When manufactured as a flat roofing sheet, it undergoes a high-pressure steaming process (autoclaving) that results in a material with remarkable dimensional stability and strength.

1. Unmatched Fire Safety (A1 Fire Rated)

For high-rise developments and industrial hubs, fire compliance is non-negotiable. Most premium fiber cement sheets are A1 or A2-s1, d0 non-combustible, providing an essential safety barrier that traditional bitumen or plastic-based roofing cannot match.

2. Superior Moisture and Corrosion Resistance

Unlike metal roofing, fiber cement does not rust or corrode in coastal or high-humidity environments. Furthermore, high-quality boards are engineered to prevent "sweating" or leaching, ensuring the sub-assembly remains dry and mold-free.

3. Low Thermal Expansion

One of the biggest challenges in roofing is the expansion and contraction caused by temperature swings. Fiber cement flat sheets have a very low coefficient of thermal expansion, which reduces the stress on screws, anchors, and frame systems.

Technical Data Sheet (TDS):

Density: ≥1.2g/cm3 for high-impact resistance.

• Modulus of Rupture (MOR): Class 4 or 5 according to EN 12467 standards.
• Water Impermeability: No water drops on the reverse side after 24 hours.
• Surface Finish: Options include through-colored, UV-resistant coatings, or natural grey for industrial aesthetics.

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fibre cement lap cladding

 Fiber cement lap cladding is a highly durable exterior siding material made from a mixture of cellulose fibers, portland cement, sand, and water. It is designed to mimic the appearance of traditional wood siding—specifically "lap" or "clapboard" styles where each board overlaps the one below it—while offering significantly higher resistance to environmental factors.

Key Performance Benefits

• Fire Resistance: Most fiber cement products are non-combustible (often rated Class A or A1), making them ideal for high-risk wildfire zones or commercial applications.
• Moisture & Rot Resistance: Unlike wood, fiber cement does not rot, swell, or buckle when exposed to rain or humidity. It is also resistant to termites and other wood-boring insects.
• Dimensional Stability: It has a low thermal expansion coefficient, meaning it won't shrink or expand drastically with temperature changes, which helps maintain the integrity of paint and seals.
• UV Resistance: When factory-finished or treated with high-quality coatings, it holds color much longer than traditional timber siding.

Common Specifications

Feature	Typical Standards
Thickness	8mm to 12mm (5/16" to 1/2")
Standard Widths	150mm to 300mm (approx. 6" to 12")
Surface Finish	Smooth (modern) or Cedar/Woodgrain (traditional)
Installation	Blind nailed (fasteners hidden) or Face nailed

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Grooved Weatherboard • Interior-Exterior fiber cement sheeting

 Fiber cement grooved weatherboards are a versatile cladding solution, designed to mimic the aesthetic of traditional timber tongue-and-groove planks while providing the durability of masonry. Because they are composed of pressurized sand, cement, and cellulose fibers, they offer significant performance advantages in both internal and external environments.

Technical Performance

• Fire Resistance: Typically classified as non-combustible (often reaching A1 or Group 1 ratings), making them ideal for high-risk bushfire zones or commercial interiors requiring strict fire compliance.
• Moisture Stability: Unlike wood, fiber cement does not swell, rot, or warp when exposed to moisture. In exterior applications, this prevents paint from peeling prematurely; in interiors, it handles high-humidity areas like laundries or mudrooms effectively.
• Thermal & Acoustic Mass: The density of the sheeting provides better sound insulation and thermal inertia compared to thin PVC or metal siding.

Application Versatility

Application	Usage Benefits
Exterior Facades	Used for full wraps or accent walls. The deep grooves create strong shadow lines that define the architectural profile of a building.
Interior Walls	Often used for "shiplap" styles or wainscoting. It is much more impact-resistant than standard gypsum drywall, making it suitable for high-traffic hallways.
Soffits & Ceilings	Provides a clean, linear look for porch ceilings or undercover outdoor areas where durability against wind-driven rain is required.

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Why 19mm MgO Board for Passive Fire Protection?

 

1. Zero Flame Spread & Low Smoke

MgO boards do not burn. In the event of a fire, they do not contribute fuel to the flames and, crucially, do not emit toxic smoke or "dripping" particulates, which are the primary causes of injury during building evacuations.

2. Structural Integrity Under Heat

Unlike plywood or OSB, which lose structural capacity quickly when charred, MgO maintains its shape and load-bearing properties for a longer duration under high temperatures. This is vital for maintaining "compartmentation" in multi-story buildings.

3. Resistance to "Sweating" (Sulfate vs. Chloride)

For 19mm flooring, it is recommended to use Magnesium Sulfate (MgSO4) based boards.

• Chloride-free: Prevents the "crying board" phenomenon where moisture leaches out and corrodes metal joists or fasteners.
• Stability: Sulfate boards offer better dimensional stability in changing humidity, ensuring the T&G joints stay tight.

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PASSIVE FIRE FLOOR CLADDING Magnesium Oxide (MgO) boards with a Tongue & Groove (T&G)

 Magnesium Oxide (MgO) boards with a Tongue & Groove (T&G) profile are increasingly used as high-performance subflooring and underlayment. They offer a robust alternative to plywood or fiber cement, particularly in environments requiring high fire ratings and moisture resistance.

Core Technical Specifications

MgO flooring boards are typically denser and thicker than standard wall panels to handle structural loads.

• Fire Rating: Most T&G MgO boards are Class A1 (Non-combustible). They do not contribute to fire spread and release no toxic smoke.
• Standard Thickness: Usually ranges from 18mm to 20mm for structural flooring, though thinner boards exist for underlayment.
• Edge Profile: The T&G system allows for a seamless, interlocking fit that distributes weight across the joints and prevents "stepping" between panels.
• Density: Generally between 1,000 kg/m³ and 1,200 kg/m³ to ensure flexural strength and impact resistance.

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2-sided TG 2700x600x16mm fiber cement decking board

 For a 2-sided Tongue and Groove (TG) fiber cement decking board with dimensions of 2700mm x 600mm x 16mm, you are looking at a high-density, structural-grade panel typically used as a subfloor or finished floor base in modular construction or mezzanine applications.

Technical Specifications & Characteristics

Feature	Description
Material	Cellulose fiber-reinforced cement (Autoclaved)
Density	Generally ≥1.3g/cm3 for structural flooring
Fire Rating	Typically A1 or A2-s1, d0 (Non-combustible)
Edge Profile	Tongue & Groove (TG) on the long edges (2-sided)
Surface Finish	Sanded or smooth; ready for tiling, vinyl, or coating

Key Performance Benefits

• Structural Integrity: At 16mm thickness, these boards provide a stiff, walkable surface. The TG profile ensures load transfer between panels, reducing "bounce" and eliminating the need for noggings under every joint.
• Moisture Resistance: Unlike plywood or particle board, fiber cement will not rot, warp, or delaminate when exposed to moisture during the construction phase.

Dimensional Stability: Low thermal expansion/contraction coefficient, which is critical for long-span decking

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12mm ship lap edge groove boards Mgo panels

 For 12mm MgO Shiplap panels, the focus shifts from structural flooring to decorative and functional wall cladding (facades). Shiplap is highly valued in international markets like the US, Canada, and Australia for its superior water-shedding capabilities and "seamless" aesthetic.

The 12mm thickness is specifically optimized for vertical applications where weight and ease of installation are as important as fire resistance.

Key Technical Specifications (12mm)

Feature	Target Specification	Purpose
Density	1,000kg/m³ – 1,150kg/m³	Balances impact resistance with ease of handling.
Bending Strength	>12 MPa	Ensures the board can withstand high wind loads.
Fire Rating	Class A1 (Non-combustible)	Critical for high-rise or boundary wall compliance.
Edge Profile	10mm - 12mm overlap	Provides a secure seal and aesthetic shadow line.
Water Absorption	< 15% (Sealed/Coated)	Prevents the board from getting heavy in rain.

 

The Shiplap Advantage vs. T&G

While T&G (Tongue and Groove) is designed for interlocking floors, the Shiplap (also called a "Rebate Joint") is the preferred edge for 12mm exterior panels because:

• Water Management: The overlapping "lap" joint creates a natural rain screen. Gravity ensures water sheds off the face of the board rather than being driven into the joint by wind.
• Movement Allowance: It allows for slightly more thermal and moisture expansion/contraction than a tight T-joint without visible gapping or "tenting."
• Blind Fastening: It allows for screws or nails to be driven through the recessed "lap," which is then covered by the overlap of the next board, hiding the fasteners for a cleaner look.

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Tongue & Groove Fire-Resistant Mgo board Flooring

 

For heavy-duty flooring applications, Tongue & Groove (T&G) MgO boards are often the gold standard due to their structural integrity and superior fire resistance compared to traditional plywood or OSB.

Here is a breakdown of the technical specifications, benefits, and installation considerations for T&G MgO flooring:

1. Key Technical Advantages

• Fire Rating: Most high-quality MgO boards are classified as non-combustible (Class A1/UL 050). They do not contribute to flame spread and maintain structural stability under high heat.
• Dimensional Stability: Unlike wood-based subfloors, MgO does not warp, swell, or delaminate when exposed to moisture. This is critical for maintaining the T&G joint integrity.
• Insects & Mold: Naturally resistant to termites and mold growth, as the inorganic composition does not provide a food source for biological agents.
• Acoustics: Due to its high density, MgO flooring offers excellent sound dampening properties (STC and IIC ratings) compared to lightweight timber boards.

2. Common Flooring Specifications

Feature	Standard Range
Thickness	18mm to 20mm (Typical for structural subflooring)
Density	$1,000 \text{ kg/m}^3$ to $1,200 \text{ kg/m}^3$
Edge Profile	2-sided or 4-sided Tongue & Groove
Bending Strength	15–20 MPa (Depending on glass fiber mesh layers)

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What is the slip resistance rating of fiber cement decking board?

 Slip resistance for fiber cement decking is typically measured using two primary standards: the Pendulum Test Value (PTV) and the R-Rating (Oil-Wet Ramp Test). Because fiber cement is a manufactured product, the rating often depends on whether the board is smooth, textured (wood grain), or has a factory-applied anti-slip coating.

Common Slip Resistance Ratings

For most commercial and residential fiber cement decking products, you will find the following average ratings:

Condition	Pendulum Test Value (PTV)	R-Rating (DIN 51130)
Dry	60+ (Low Slip Potential)	R11 – R12
Wet	36 – 45 (Low Slip Potential)	R10 – R11

 

Key Technical Factors

• Surface Texture: Boards with a deep "timber grain" or ribbed profile generally achieve an R11 rating, which is suitable for outdoor walkways and pool surrounds.
• Coatings: Many manufacturers apply a UV-resistant acrylic coating. If the coating is high-gloss, the wet slip resistance can drop significantly unless an anti-skid aggregate is mixed into the finish.
• Porosity: Unlike wood, fiber cement does not absorb significant water, which prevents the growth of algae—a major contributor to slipperiness on traditional timber decks.

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Tongue and groove fiber cement board Flooring and Underlayment

 When using Tongue and Groove (T&G) Fiber Cement Board for flooring and underlayment, the focus shifts from aesthetics to structural integrity and moisture management.

In technical specifications, this material is often categorized as Structural Subflooring or Tile Underlayment.

Primary Flooring Applications

• Internal Wet Area Flooring: This is the standard for bathrooms, laundries, and kitchens. The T&G edges ensure the floor doesn't "bounce" or deflect at the joints, which prevents floor tiles from cracking.
• External Decking Substrate: Used as a base for tiled balconies or verandas. In these cases, Compressed Fiber Cement (CFC) is usually specified because it can handle weather exposure and heavy foot traffic.

Inter-floor Solutions: Often used in multi-story residential buildings to provide a solid feel underfoot that mimics a concrete slab but with much less weight.

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Is Tongue and Groove Subfloor fiber cement board 'Self-Supporting' or does it require a structural sub-base?

 Yes, our Tongue & Groove (T&G) fiber cement boards are engineered as structural, self-supporting subfloor panels. They are designed to be fixed directly to timber or steel floor joists without the need for a secondary structural sub-base (such as plywood or OSB).

However, to ensure structural integrity and meet international building codes, the following parameters must be met:

1. Thickness: Typically, a minimum thickness of 18mm or 22mm (approx. 3/4") is required for self-supporting applications.
2. Joist Spacing: The boards are rated for standard centers—commonly 16" or 24" (US) or 450mm/600mm (International).
3. Joint Support: While the T&G joints provide load transfer between panels along the long edges, all 'short ends' (butt joints) must fall directly on a joist.

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Does Fibre Cement Flooring Board Tongue & Groove swell or rot when exposed to moisture?

 One of the primary reasons builders choose fibre cement over timber or plywood is its performance in wet environments. Here is the technical breakdown of how it handles moisture:

1. Resistance to Rot

Fibre cement is composed of Portland cement, sand, and cellulose fibers. Because it is a cementitious product, it contains no organic material that can serve as a food source for fungi or termites. Unlike wood-based products, it will not decay or rot, even if it remains damp for extended periods.

2. Dimensional Stability (Swelling)

While all materials have some degree of thermal or moisture movement, fibre cement is considered dimensionally stable.

• Minimal Expansion: Unlike OSB or plywood, which can swell significantly at the edges and "mushroom," fibre cement’s expansion rate is negligible.
• T&G Integrity: For Tongue & Groove (T&G) boards, this stability is crucial. It ensures that the joints remain tight and flush, preventing the floor from buckling or the T&G edges from snapping under pressure due to swelling.

3. Strength When Wet

Most wood-based flooring loses structural integrity when saturated. Fibre cement retains the vast majority of its strength even when wet, making it an ideal substrate for:

• Wet Areas: Bathrooms, laundries, and kitchens.
• Construction Delays: If the building is "open to the weather" before the roof is finished, these boards will not be ruined by rain.

Important Note on Installation

Even though the board itself won't rot or swell, moisture management is still important for the overall floor system:

• Joint Sealing: In wet areas, a polyurethane sealant is typically applied to the Tongue & Groove joint during installation to create a water-resistant seal.
• Framing: Ensure the timber or steel joists underneath are also protected, as the boards are only one part of the assembly.

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What is the advantage of fiber cement decking board compared to WPC?

 

While WPC (Wood Plastic Composite) is a popular choice for residential backyards, fiber cement decking is increasingly preferred for high-end commercial projects and regions with extreme weather.

The advantages of fiber cement over WPC generally fall into three "Industrial Grade" categories: Safety, Stability, and Thermal Performance.

1. Fire Safety (The "Dealbreaker" Advantage)

This is the most significant differentiator in international building codes.

• Fiber Cement: Naturally non-combustible (typically rated Class A / A1). It does not contribute fuel to a fire and does not emit toxic smoke.

• WPC: Contains a high percentage of plastic (PE or PVC). Even "fire-rated" WPC is still combustible and will eventually melt or burn in a structural fire.
• Verdict: In many jurisdictions, fiber cement is the only material allowed for high-rise balconies or public infrastructure.

2. Dimensional Stability

Plastics are highly sensitive to temperature changes, leading to movement.

• Minimal Expansion: Fiber cement has a very low coefficient of thermal expansion. It will not warp, "snake," or buckle when the temperature swings from a cold night to a hot afternoon.
• Tight Joints: Because the boards don't move much, you can install them with tighter gaps, creating a more seamless, premium look. WPC requires large expansion gaps (often 5mm-8mm) to prevent the boards from pushing against each other.

3. Heat Dissipation (The "Barefoot" Test)

• Stays Cooler: Fiber cement is a mineral-based product with high thermal mass and low conductivity. It absorbs heat slowly and releases it effectively.
• WPC "Hot-Foot": WPC boards, especially darker colors, act like a "heat sink" due to their plastic content. In direct sunlight, WPC can become hot enough to cause discomfort to bare feet or pets; fiber cement remains significantly cooler.

4. Longevity in Harsh Environments

• No "Mushrooming": Some WPC products can absorb water at the ends where the wood fibers are exposed, leading to swelling or "mushrooming." Fiber cement is inorganic and cannot rot.
• UV Resistance: Unlike the polymers in WPC which can become brittle or "chalky" after years of intense UV exposure, the structural integrity of fiber cement remains unchanged by sunlight.

5. Summary Table for Quick Reference

Feature	Fiber Cement Decking	WPC (Composite)
Fire Performance	Non-combustible (Class A)	Combustible (Class B/C)
Thermal Expansion	Negligible	Significant
Surface Temp	Stays cooler	Can get very hot
Insects/Rot	100% Resistant	High resistance (but not 100%)
Best For	Commercial, High-rise, Fire-zones	Residential gardens

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How does fiber cement decking board handle extreme UV exposure?

 Fiber cement decking is highly regarded in the international market specifically for its performance in high-UV environments like Australia, the Middle East, and the Southern United States. Unlike Wood Plastic Composites (WPC) or natural timber, fiber cement is an inorganic mineral-based product, which gives it a distinct advantage in sunlight.

Standard decking materials like WPC often contain polyethylenes that can break down (become brittle or "chalky") when exposed to intense ultraviolet radiation.

• Inorganic Stability: Fiber cement is composed of Portland cement, sand, and cellulose fibers. These components are UV-stable, meaning the structural integrity of the board will not weaken, crack, or flake due to sunlight.
• Heat Absorption: Fiber cement has lower thermal expansion than plastic-based decks. While dark colors will still absorb heat, the boards won't warp or "snake" when the sun hits them.

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What is the water absorption rate of Mgo board after 24 hours of immersion?

 The water absorption rate of a high-quality Magnesium Oxide (MgO) board after 24 hours of total immersion typically ranges between 8% and 15% by weight.

However, this value can fluctuate based on the board's density and its chemical formulation (Chloride-based vs. Sulfate-based).

1. Performance by Board Density

MgO boards are categorized by their density, which directly correlates with their porosity and water resistance:

• Standard Density (800–900kg/m3): Absorption is usually on the higher end, around 12%–18%. These are often used for internal wall linings.
• High Density (1,000–1,300kg/m3): Absorption is significantly lower, typically 8%–12%. These are the industry standard for external facades, SIP panels, and sub-flooring.

2. The "Swelling" Factor (Thickness Change)

In technical submittals, the percentage of weight gain is often less critical than the Thickness Swelling Rate. This measures the dimensional stability of the board—how much it expands when wet.

• High-quality MgO board: Thickness swelling after 24 hours of immersion is usually < 0.1% to 0.5%.
• In comparison, traditional wood-based products like OSB or plywood can swell by 10% to 20% under the same conditions.

3. Chloride-free (Sulfate) vs. Chloride-based

The type of Magnesium salt used affects how the board interacts with moisture over the long term:

• Magnesium Sulfate Boards: These are preferred for high-humidity environments. They maintain better structural integrity during prolonged immersion and do not exhibit the "sweating" (hygroscopic) issues common in lower-grade boards.
• Hydrophobic Treatments: Many manufacturers apply a factory-sealed silane or siloxane coating to the "smooth" side of the board. This can temporarily drop the initial absorption rate to < 5%, though the core remains breathable.

4. Impact on Strength

A key advantage of MgO over gypsum or wood is its wet-strength retention:

• While the board absorbs a small amount of water, it does not lose its structural "bond."
• Once the board dries out, it returns to its original dimensions and recovers nearly 100% of its original flexural strength (Bending Strength), whereas gypsum boards would turn to "mush" and OSB would permanently lose structural capacity.

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Key Technical Advantages of Mgo sulfate board

 What is Magnesium Sulfate (MgSO4) Board?

Unlike the older generation of Magnesium Oxide (MgO) boards which used Magnesium Chloride (MgCl2) as a binding agent, the Sulfate version utilizes Magnesium Sulfate (MgSO4). This chemical shift was engineered to solve the "crying" or "sweating" phenomenon—where chloride-based boards absorb environmental moisture and leach corrosive salt water.

The Significance of the A1 Fire Rating

The A1 Rating is the highest classification under the European Standard EN 13501-1. It signifies that the material is non-combustible and provides:

• No contribution to fire: The board will not ignite or fuel a flame.
• No smoke production: Essential for maintaining visibility and air quality during evacuation.
• No flaming droplets: Prevents the spread of fire to lower levels or adjacent structures.

Chloride-Free (Anti-Corrosion): With chloride levels typically below 0.05%, these boards are safe for use with light-gauge steel framing and standard fasteners without the risk of rapid oxidation.

  Dimensional Stability: MgSO4 boards exhibit minimal expansion and contraction, making them ideal for large-scale facade cladding and roofing sub-layers.

  Water Resistance: They maintain their structural integrity even when saturated, making them suitable for high-humidity environments or projects where the structure may be exposed to weather during construction.

  Health & Safety: Being asbestos-free, silica-free, and low-VOC, they contribute to healthier indoor air quality and are easier for workers to handle during drilling and screwing trials.

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How to prevent the weep or sweat in high humidity about Mgo board?

 To solve this problem, the industry developed Magnesium Sulfate (MgSO4) boards, often marketed as "Chloride-Free" or "Sulfate-based" MgO boards.

Feature	Chloride-based (Standard)	Sulfate-based (Premium)
Humidity Resistance	Prone to weeping in humid climates.	Stable; does not weep or sweat.
Corrosion Risk	High (corrodes steel/screws).	Very Low (safe for metal contact).
Price	Generally cheaper.	More expensive due to raw material costs.
Best Use	Dry, interior controlled climates.	Exterior cladding, wet areas, and humid regions.

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How does the fiber cement exterior cladding perform in high-moisture or coastal environments?

 Fiber cement cladding is widely regarded as one of the most resilient cladding materials for high-moisture and coastal environments. Unlike wood, which rots, or vinyl, which can become brittle, fiber cement’s inorganic composition allows it to withstand constant exposure to salt air and humidity.

Here is a detailed breakdown of how it performs under these specific conditions:

1. Resistance to Rot and Corrosion

In coastal areas, the combination of high humidity and salt spray creates an aggressively corrosive atmosphere.

• Non-Organic Base: Because fiber cement contains no wood fibers (it uses cellulose, which is processed and embedded in a cement matrix), it does not provide a food source for mold or mildew.
• Salt Air Stability: Unlike metal siding (which can rust) or certain stone veneers that can suffer from salt efflorescence, fiber cement is chemically stable and does not react with chloride ions in the sea air.

2. Moisture Management and Dimensional Stability

High-moisture environments often cause materials to expand and contract, leading to warping or joint failure.

• Autoclave Process: High-quality fiber cement cladding is "cured" in a high-pressure steam autoclave. This process creates a chemically stable product with a very low moisture movement coefficient (typically less than 0.1%).
• Minimal Warping: While wood siding might cup or twist when saturated, fiber cement maintains its shape, ensuring that the building envelope remains tight and water-resistant.

3. Impact Resistance (Storm Performance)

Coastal regions are frequently prone to high winds and storms.

• Wind Load: Fiber cement is heavy and dense (typically 1.2 to 1.5  g/cm3). When installed correctly with the proper fastening pattern, it has high wind-load resistance, often meeting strict building codes in hurricane-prone zones (like Florida's High Velocity Hurricane Zone).
• Debris Impact: It is significantly more "impact resistant" than vinyl or thin aluminum, meaning it is less likely to be punctured by flying debris during a storm.

4. Paint and Coating Longevity

The sun’s UV rays are often more intense in coastal areas due to reflection off the water.

• Adhesion: Fiber cement holds paint much better than wood because it doesn't "breathe" (expand/contract) as much. This means the paint film is less likely to crack or peel.
• Factory Finishing: For coastal projects, factory-applied coatings (like "ColorPlus" technology) are highly recommended. These are baked on in a controlled environment, providing superior UV resistance compared to field-applied paint.

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