Replace a dryer vent cap
1 of 2
Photo 1: Disconnect the old cap
Cut the old caulk with a utility knife and pull out the vent
from the outside.
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Photo 2: Install the new cap
Insert the duct from the dryer into the new vent duct and
wrap the joint with metal tape.
Dryer vent caps are deliberately lightweight so they'll
open easily, but this flimsiness also means they'll break
easily. The caps, especially the type with multiple small
flaps, also clog easily with lint. (Avoid this type unless you're
conscientious about cleaning it.)
To replace an old vent cap, first pull apart the duct at the last
joint inside the house. If they don't pull apart easily, look for
small screws holding the sections of pipe together. Next,
remove the screws or nails used to attach the cap to the siding
and cut through the caulk around the edges (Photo 1). Pull out
the cap, scrape away old caulk and dirt, and then wipe the siding
clean so new caulk will stick.
Cut the new vent pipe to the same length as the old one, then
slide it through the wall. Screw the cap to the siding and caulk
around the edges with paintable caulk.
Finally, join the old duct inside the house to the new vent
(Photo 2). Vent caps are available at home centers.