Plugging those air leaks can increase comfort, cut electricity bills and also address any moisture problems caused because of air leakage (see out post on Air Sealing 101).
Once you have identified the air leakage areas using a blower door test, you have the option to seal those leaks using a variety of materials and techniques. These include caulking with silicon sealants for smaller leaks, and using spray foam for larger leaks.
Air sealing options include caulking with silicon sealants for smaller leaks, and using spray foam for larger leaks
Here are the best air sealing products available in the market today, based on our analysis, and feedback from customers and contractors:
|Price||n/a||$60 /roll||$340 / 32 pound system pack||$6.79 /10 yard roll||$129.0 /100ft roll|
|Details||Window sealant for caulking||Smart Vapor Retarder (moisture control) & Air Barrier > CertainTeed MemBrain||Froth-Pak Foam > Air Sealing & insulation||Flashing Tape > Weather sealing tape for windows & doors||Double Reflective Insulation Roll with Double Air > provides energy and noise insulation|
|Material||Modified urethane acrylic window sealant||100 in. x 50 ft. Air Barrier with Smart Vapor Retarder||Spray Foam||Clear Flashing tape||Radiant Barrier Roll|
|Product Link||Click to get More Information & Buy||Click to get More Information & Buy||Click to get More Information & Buy||Click to get More Information & Buy||Click to get More Information & Buy|
* Smart Zero Home overall rating based on customer and retailer feedback and our 5 parameter market analyses
** Price is the best price available online, and may include discounted/bargain prices that may not be available everywhere
The following video by DOW building solutions demonstrates the use of DOW's Froth-Pack spray foam for air sealing basement crawl space leaks: