Technical Specification

High-temperature carbonized outdoor heavy-duty bamboo-wood composite wall cladding is engineered for applications requiring structural resilience and environmental tolerance. The manufacturing process involves subjecting bamboo and wood fibers to controlled high-temperature carbonization, reducing hygroscopicity and altering the material's cellular composition to resist decay and insect attack. The resulting dense composite panel exhibits low moisture absorption and maintained dimensional stability under variable climate conditions. This product is suitable for exterior wall systems where load-bearing capacity and resistance to biological degradation are specified. The material's density and fiber alignment provide consistent mechanical performance across the panel surface.

85 MPa Flexural Strength

<8 % Moisture Content

B1 Class Fire Rating

150 Cycles Freeze-Thaw

Core Advantages

01

Low Hygroscopicity

High-temperature carbonization reduces equilibrium moisture content to below 8 percent, minimizing expansion and contraction cycles.

02

High Flexural Strength

Bamboo-wood fiber composite structure delivers flexural strength above 85 MPa, supporting heavy-duty cladding installations without underlying metal reinforcement in many configurations.

03

Biological Durability

Carbonized matrix eliminates nutrient sources for fungi and termites, providing biological durability without chemical preservatives.

Product Characteristics

Density	1.15 - 1.25 g/cm³
Thickness Options	18 mm, 21 mm, 25 mm
Width Options	140 mm, 190 mm, 240 mm
Length	2440 mm or customized
Surface Finish	Sanded, grooved, or wire-brushed
Fire Rating	Class B1 (difficult to ignite)
Water Absorption	Below 3 percent (24-hour immersion)
Freeze-Thaw Resistance	150 cycles without surface cracking

Installation Guidelines

1

Ventilated rainscreen system with minimum 20 mm air gap between cladding and waterproof membrane.

2

Stainless steel fasteners (grade 304 or 316) must be used to prevent galvanic corrosion.

3

Pre-drilling required for all fastener locations, with hole diameter 0.5 mm larger than fastener shank.

4

Horizontal and vertical movement joints shall be placed every 8 meters to accommodate thermal expansion.

5

Allow 5 mm gap between adjacent panels for drainage and airflow.

Surface chalking

Prolonged UV exposure without coating

Apply UV-protective water-repellent coating every 24 to 36 months

Fastener corrosion

Use of coated or galvanized steel fasteners

Replace with grade 316 stainless steel fasteners

Panel edge swelling

Insufficient drainage or direct ground contact

Maintain 10 mm clearance from ground; verify drainage path

Color variation

Natural bamboo fiber carbonization gradient

Pre-sort panels by lot number; blend from multiple boxes

Annual cleaning using mild detergent and soft-bristle brush removes surface deposits. Pressure washing permitted with maximum 7 MPa nozzle pressure, held at minimum 300 mm distance from surface. Inspect fastener heads and panel edges biannually. Re-apply water-repellent coating every two to three years when water beading test shows absorption within 10 seconds.

Store panels on flat, level racking with full support across panel width. Keep material elevated minimum 150 mm above ground and covered with breathable tarp allowing air circulation. Do not stack more than 800 mm in height. When cutting, use carbide-tipped blades with dust extraction system; collected dust is non-hazardous but should not be inhaled. Wear N95 mask, safety glasses, and cut-resistant gloves during fabrication.

Ningguo Kuntai Bamboo and Wood Co., Ltd. is located in Ningguo, Xuancheng City, Anhui Province, known as the "Bamboo Village," where large quantities of bamboo plants grow. "Huihuang Bamboo," established in the year 2002, has now set up a large manufacturing site in Anhui, a modern factory named KUNTAI, which covers an area of 30,000 square meters. We are China Carbonized outdoor heavy bamboo wall panels Manufacturers and Custom Carbonized outdoor heavy bamboo wall panels Factory. KUNTAI is a professional manufacturer of outdoor strandwoven bamboo decking, bamboo flooring, bamboo wall-cladding and siding, bamboo panels, plywood, bamboo boards, bamboo timbers and beams, bamboo ceiling and roof, as well as bamboo garden furniture. We have obtained the certificates of FSC, CE, SGS, and ISO9001, ISO14001. We are the holder of a US patent for outdoor bamboo decking (No.. US11148318) and are authorized by the US patent as a manufacturer and exporter in China. Clients and customers are welcome to visit our factory.