Construction Precautions For Waterproof Cement Boards

Feb 19, 2026 Leave a message

Substrate Preparation:

Before construction, ensure the substrate is flat, dry, and free of oil stains; otherwise, the bonding strength between the board and the substrate will be affected.

 

Joint Treatment:

Leave a 3-5mm gap between boards and fill it with waterproof sealant to prevent cracking due to thermal expansion and contraction.

 

Cure Period:

After construction, maintain good ventilation and avoid direct sunlight or rain. The curing time is typically 7-14 days to ensure the waterproof layer is fully cured.

 

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