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Checking
for Roof Trouble
CHECK INSIDE FOR:
CHECK
OUTSIDE FOR:
Environmental Roof Enemies
Many conditions affect how long
your roof will last. Being familiar with your environment and the
following factors will help you make informed decisions when purchasing
your roof system:
| Sun: |
Heat and ultraviolet rays can
cause deterioration of roofing materials (faster on west
or south facing sides). |
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| Rain: |
Water can get underneath shingles,
shakes or other roofing materials and work its way to
the roof deck causing the roof structure to rot. |
|
| Wind: |
High winds can lift the edges
of shingles (or other roofing materials) and force rain
and debris underneath them. |
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| Condensation:
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Condensation results from the
buildup of warm, moisture-laden air and in a poorly ventilated
attic can promote rotting of wood sheathing and rafters,
possibly destroying a roof structure. |
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| Trees and leaves:
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Branches that fall on your
roof from overhanging trees can puncture shingles and
may damage other roofing materials. Leaves accumulating
on your roof can retain moisture, cause rot and block
gutter drainage. |
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| Shingle deterioration:
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When shingles become old and
worn, they curl, split, are less waterproof and can be
easily blown off by wind gusts. This results in loss of
structural integrity from water damage and rotting. A
roof system in this deteriorated condition should be replaced
as soon as possible as it only gets worse with time. |
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| Moss and algae:
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Moist wood shingles
and shakes can be subject to rotting from moss growth.
Moss roots can also work their way into wood decks or
other wood structures. Algae growth on shaded or damp
areas of wood or asphalt shingle roof systems causes rot
and deterioration. Clay and concrete tile roofs near the
ocean are also subject to algae problems. To help prevent
moss and algae growth, trim trees and bushes away from
homes to eliminate damp, shaded areas and keep gutters
clean to ensure good drainage. |
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| Flashing deterioration:
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Ensuring there
are good, tight flashings around chimneys, vents, skylights
and wall/roof junctions can prevent water from entering
a home and causing damage to walls, ceilings, insulation
and electrical systems. Flashings should be checked as
part of a biannual roof inspection and gutter cleaning. |
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