Spray Foam Insultation
There are two main types of spray foam insulation that we use to improve air, water, and heat movement in homes:
Open Cell Foam
Open Cell Spray foam is used in applications where both air movement and heat movement need to be eliminated in a cost effective manner. One of the most common uses is to air seal and insulate the underside of a roof area of an attic space. These spaces are typically very expensive and difficult to insulate and air seal with conventional materials because multiple materials must be used and access is typically very tight. In addition, open cell foam is typically specified for application in band joists, cantilevers, and attic knee walls. The Open Cell foam that we use has a higher insulation value than common fiberglass or cellulose insulations, and when properly specified and installed can significantly reduce heating and cooling costs while improving home comfort.
Closed Cell Foam
Closed Cell Spray foam is used in applications where a moisture barrier is required in addition to an air and insulation barrier. In general, it is used for applications underground in basements or crawlspaces where it may come in contact with water. The Closed Cell foam that we use also has a higher insulation value than common fiberglass or cellulose and it is even higher than open cell foam. For this reason, it is occasionally specified for applications where only a few inches of space are available for insulating.
An Atlas Energy Auditor can determine which method of improving your specific crawlspace will help you meet your goals of comfort and energy efficiency while minimizing investment costs and time.