Encyclopedia & FAQ's

DIY Frequently Asked Questions / What are some common uses for sealants?


Sealants are used to seal or close cracks or joints between sills and foundations; where siding joins window and door trim; openings around external electrical outlets, electrical and telephone cables; dryer vents; kitchen, attic and bathroom vents; flashings; skylights; other cracks and openings that leak water into homes or that leak heated air and energy out.