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APA - The Engineered Wood Association

The Leading Resource for Information About Engineered Wood Products™


A Dry Idea: In highly humid climates with a lot of moisture buildup, consider installing a heat recovery ventilator. These devices provide a controlled air exchange to prevent moist air accumulation.

APA's Free From Mold ten point protection plan □ Musty odors indicate a moisture problem. Check for discoloration on walls, floors, and ceilings, and take immediate action.

□ One method to determine if moisture is seeping through the slab is to tape a square piece of plastic wrap to your basement floor. If moisture beads up underneath, you have water getting through the slab. Call a professional for advice.

□ Keep dehumidifiers empty.

□ When finishing basements, seek expert advice before installing insulation, vapor retarders, or drywall against exterior concrete walls.

□ Inspect crawlspaces annually. Be sure to clean out crawlspace vents.

□ Check for moisture-related problems – signs of standing water, mildew on floor joists, signs of rust on metal fasteners, etc.

□ Check underfloor insulation. Replace any loose batts.

□ If it’s not present, install a 6-mil polyethylene vapor barrier on the ground.

Because APA has no control over quality of workmanship or the conditions under which engineered wood products are used, it cannot accept responsibility of product performance or designs as actually constructed. Consult your local jurisdiction or design professional to assure compliance with code, construction, and performance requirements.