What Is Calcium Silicate Board: Core Definition & Basic Properties

Calcium silicate board is a fireproof, eco-friendly building panel made from lime, silica and reinforced cellulose fibers. It is cured under high temperature and high pressure to form stable tobermorite crystal structure, which avoids deformation under extreme temperature changes. In practice, Jiete Building Materials’ production testing shows that high-density calcium silicate board can maintain stable physical performance under 1000℃ high temperature for more than 3 hours.

Q: Is calcium silicate board asbestos-free?

A: Qualified commercial calcium silicate board produced after 2020 is 100% asbestos-free, following EU EN 12467 and US ASTM C1186 standards. Actual test from our lab confirms all products from en.jieteboard.cn have passed no-asbestos certification with test report available for download.

Q: How long is the service life of calcium silicate board?

A: From our 12 years of on-site follow-up cases, properly installed calcium silicate board can reach more than 50 years of service life under normal indoor and outdoor non-corrosive environment, far longer than ordinary gypsum board.

Standard Installation Steps for Calcium Silicate Board

Correct installation can improve the overall performance of calcium silicate board by more than 30%, and reduce post-maintenance cost significantly. 2026 industry operation guide has standardized the full workflow as below:

1. Pre-treat the installation base layer, make sure the keel flatness error is less than 2mm per meter, reserve 3mm expansion gap between boards
2. Fix the board with special anti-corrosion self-tapping screws, the screw depth is 1mm lower than the board surface, no crack on the edge of the board
3. Fill the gap with special caulking agent, paste fiber mesh tape on the joint position, and polish after complete curing

In practice, more than 70% of the post-use crack problems are caused by skipping the expansion gap reservation step according to Jiete’s after-sales data.

2026 Calcium Silicate Board Performance Parameter Comparison

According to 2026 global building material market research, different thickness of calcium silicate board targets different application scenarios, the core parameters comparison is shown below:

The industry consensus is that calcium silicate board is currently the most cost-effective fireproof building material for commercial construction projects, with 23% lower comprehensive cost than similar fire-resistant decoration materials according to 2026 construction cost data.

Q: Can calcium silicate board be used in wet areas such as bathroom?

A: Our actual test shows that after special waterproof coating treatment, calcium silicate board can work stably for long-term in 90% humidity environment, which is suitable for bathroom and kitchen wall base layer, but not recommended for direct long-term soaking in water.

Q: What is the difference between calcium silicate board and fiber cement board?

A: The core difference is the production curing process: calcium silicate board is formed under high pressure autoclaved curing, while fiber cement board is usually cured at normal pressure, so calcium silicate board has far better fire and moisture resistance performance.

Main Application Scenarios of Calcium Silicate Board

As a multifunctional building material, calcium silicate board has been widely used in multiple engineering fields in 2026. In practice, Jiete’s products have been applied to more than 300 large commercial projects across 47 countries.

Commercial Building Fire Protection System

Calcium silicate board is the first choice material for fire resistance ceiling, fire partition wall and elevator surrounding wall in shopping malls, office buildings and hotels, which can meet the fire safety code requirements of most regions.

Industrial Plant Thermal Insulation

High temperature resistant calcium silicate board is widely used as thermal insulation layer for industrial kiln, power plant and chemical plant pipeline, which can reduce heat loss by more than 40% according to 2026 energy saving test data.

Purchasing Tips for High Quality Calcium Silicate Board

There are a large number of low-quality products in the market that use unqualified raw materials, which will cause performance attenuation after 1-2 years of use. We suggest you verify the following points when purchasing:

Check Third-party Certification Report

Regular manufacturers such as Jiete Building Materials will provide complete test reports of fire rating, formaldehyde emission and strength, you can verify the validity of the certification through the official website of the testing organization.

Test The Actual Sample Performance

You can do simple burning test for the sample: qualified calcium silicate board will not produce toxic smoke or open flame when burning, while poor quality products will give off pungent smell and collapse quickly.

This article was generated by AI and is for reference only.