Roof Damage Wind Speed

As wind moves over a roof its effect is not uniform.

Roof damage wind speed.

These non severe winds may cause some tree branches to break off and can cause damage to already loose or susceptible shingles. According to the national weather service slight damage can begin when winds reach 45 mph but this range is considered non severe. Shingles roofs especially take a beating during high winds despite most being rated to withstand 90 mph winds. There are several types of damage high winds can cause to your roof including leaks missing shingles and gutter problems.

Roof shape and slope wind speed and load will react differently on different roof shapes and slopes. In between breezes and twisters is a whole range of wind speeds that incrementally damage the roof system. The effect of wind moving over a roof is not uniform. Class d for shingles that passed testing at 90 mph.

According to the national roofing contractors association nrca most wind damage to a roof starts on the edge. Class f for shingles that passed testing at 110 mph. 45 57 mph. Damage to your roof can begin at around 50 mph so you should know how to check your roof for such damage.

Areas like the corners and perimeter of the roof can be susceptible to higher wind pressures while the center of the roof might have lower stresses. Certain regions will be subject to higher pressures such as along the perimeter. These differences can also account for the amount of damage sustained. 58 74 mph.