Prefabricated Weatherstripping

Prefabricated weatherstripping is currently the prefered type of weatherstripping used in wood jambs with wood, metal, and fiberglass doors. Most newer homes will require this type of weatherstripping because the door jamb is kerfed, meaning that there is a recess or slot cut in the jamb leg to accept and hold the back edge of prefabricated weatherstripping. The diagram above shows how neoprene weatherstrip, a type of prefabricated weatherstripping, acts as a cushion between the door and the stop portion of the jamb where it is compressed between the two to form a seal. It is available in standard and extended reach varieties. The extended reach neoprene is for use where the gap between the surface of the door and the stop on the jamb is too large for the standard reach neopreen to create a seal when compressed between the two.

Vinyl prefabricated weatherstripping is another option for kerfed jambs. This type of prefabricated weatherstripping is similar in use and purpose to the extended reach neoprene weatherstripping ex-cept that it covers gaps too wide for the extended reach neoprene. The diagram above shows how this weatherstripping creates a seal by compressing between the door and the stop. Which of the three is appropriate is determined by considering which type would create a satisfactory seal in the particular door/jamb combination in which it will be installed.