FEMA P-499: Home Builder's Guide to Coastal Construction

After the shingles have been exposed to sufficient
sunshine to activate the sealant, inspect roofing to
ensure that the tabs have sealed. Also, shingles
should be of “interlocking” type if seal strips are not
present.
Wind-Resistance Ratings
Wind resistance determined by test methods ASTM
D 3161 and UL 997 does not provide adequate information
regarding the wind performance of shingles,
even when shingles are tested at the highest fan
speed prescribed in the standard. Rather than rely
Developed in association with the National Association of Home Builders Research Center
7.3: ASPHALT SHINGLE ROOFING FOR HIGH WIND REGIONS
HOME BUILDER’S GUIDE TO COASTAL CONSTRUCTION
on D 3161 or UL 997 test data, wind resistance of
shingles should be determined in accordance with
UL 2390. Shingles that have been evaluated in accordance
with UL 2390 have a Class D (90 mph), G
(120 mph), or H (150 mph) rating. Select shingles
that have a class rating equal to or greater than the
basic wind speed specified in the building code. If
the building is sited in Exposure D, or is greater than
60 feet tall, or is a Category III or IV, or is sited on
an abrupt change in topography (such as an isolated
hill, ridge, or escarpment), consult the shingle manufacturer.
(Note: for definitions of Exposure D and
Category III and IV, refer to ASCE 7.)
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