Crawl spaces are sometimes encapsulated or sealed to prevent indoor moisture problems. To fully enclose the crawl space, dense layers of heavy-duty polyethylene are applied to the floors, foundation walls, and sometimes even the roof. Enclosing crawl spaces is an excellent way to keep moisture out and regulate temperature. However, always practice due diligence before encasing your crawl room.

The materials that allow encapsulation to function were created relatively recently. Too many contractors and homeowners hurry into installation without doing any necessary preparation work first. It adds to the potential headaches. The following is a short reference guide to assist you in understanding the dos and don’ts of crawl space encapsulation to help you complete the job safely.