How strong are the winds that damage roofs on the Palouse?
The National Weather Service and NOAA have recorded reported gusts in the 60 to 77 mph range on the Palouse, with trees falling on homes in Moscow and Pullman. Those are reports from spotters and stations, not a guarantee of what any given street will see. The point is that a gust strong enough to damage a roof is not unusual here.
Reports cited by the National Weather Service describe a November 2006 event with gusts of 71 mph south of Moscow and trees that fell on homes in Moscow. A December 2000 storm produced a 63 mph gust at Pullman with trees and power lines down across the Palouse.
How do I know whether a storm did damage to my roof?
Look from the ground at the windward side for shingles in the yard, lifted tabs and bent trim. Check the attic and the ceiling for new stains after the storm. If you cannot see the roof safely, a technician can check it from the ground and from a ladder placed by the crew.
A roof can be damaged by wind even when it looks intact from the street. Creases in a shingle may only show as a line when you are close to it, and a lifted tab can sit back in place without holding.
What moves the price of a storm repair up or down?
The price depends on how many shingles, flashing sections and trim pieces need replacing, the pitch of the roof, and how walkable it is once the storm has passed. Access from the hill or the drive, and any damage to the decking or the gutters, also change the work. The price is explained and approved before any work starts.
A storm that has lifted a few tabs on one side is a small repair, while a storm that has stripped a run of shingles across the roof is a larger job with more decking to check.
Should I wait for the wind to die down before calling?
Call as soon as the storm has passed and it is safe to check the yard and the house. The phone line is answered around the clock, so a call in the middle of the night is possible. A visit can happen the same day when a technician is free, but it cannot be promised. Put a tarp or a board over a large opening only if you can do it safely from the ground.
Waiting for the wind to fully stop is reasonable, because a roof crew should not work in gusts. Once the wind has dropped, the roof still needs checking before the next rain or thaw.
Does wind damage on the Palouse always show up after a storm?
Some damage shows up at once, while other damage appears after a thaw or a rain. A shingle weakened by wind can crack later in the cold, and a flashing that has moved can let in water in the next melt. A roof checked once after a storm may need a second look after the first major thaw.
The Palouse winter moves water through the roof in cycles, with snow, melt and freezing taking turns. A gap made by the wind can sit quietly through one cycle and admit water in the next.