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Exterior Caulking
Exterior caulk is found around door and
window frames. The elastic sealer prevents
air leaks and water entry.
Over time, caulk deteriorates and separates
from the surface on which it’s applied. For
that reason, it’s vital to inspect caulked areas
and remove and reapply if the existing caulk
is deteriorating or separating. Otherwise,
moisture may get behind the siding or wood
frames and cause rotting.
The frames of doors and windows may begin
leaking water if the caulk is allowed
to deteriorate too long.
Care and maintenance
The following tips will help maintain the exterior
caulking on your home.
Checking caulk
Check for deteriorating or separating caulk once
or twice each year. Pay particular attention to
the following areas:
Between foundation and siding.
Door and window frames.
Objects such as outlets, pipes, and vents that
protrude from an exterior wall.
Objects such as chimneys and vents that
protrude from the roof.
Angles and corners between different siding
materials.
HOME TIP: Use only elastomeric caulk
for repairs.
HOME TIP: Don’t apply acrylic caulk over
silicone caulk or silicone caulk over acrylic
caulk. The two will not bond properly.
