Are there features I should consider when choosing a High Temperature Calcium Silicate Board ?

Here are some key features to consider when choosing a high temperature calcium silicate board:

Temperature rating

How high of continuous and peak temperatures the board is rated to withstand. Common ratings are 1200°F, 1500°F, 2000°F.

Dimensions

Thickness, length, width available for your specific application space needs.

Edges

Square or tapered edges affect installation and aesthetics for visible applications.

Surface finish

Some have a glazed or painted face for cleaner looks, others are rough unfinished.

Composition

Percentages of silicon dioxide, calcium oxide can affect properties like compression strength.

Moisture resistance

Important for humid or wet environments where mold/degradation is a concern.

Fire resistance

Class A rating essential for use near flames, sparks or other ignition sources.

Toxicity

Consider off-gassing of any hazardous materials at high temps for personnel safety.

Physical properties

Needed compressive, flexural and impact strengths for load-bearing use.

Compliance standards

Must meet requirements of regional building codes for fire safety use.

Choosing a board matched to your specific temperature, environmental and installation conditions helps ensure long-lasting, reliable performance.