The Effect of Wind Damage on Roofs

Wind Damage

Wind damage to your roof can be costly to repair, and your best defense against such an unfortunate event is first-rate construction designed to withstand the elements. To be sure the roofing materials you choose are adequate, consider the weather conditions in your area. How badly can a hurricane, tornado or blustery day batter your roof, one of the most important components of your home’s structure?

How Does Wind Damage Occur?

Wind sweeping over your roof will affect certain areas more than others. The parts of your roof most susceptible to damage are the edges. Pressure is higher at each corner of your roof, whereas the center section does not experience as much stress. If the roof has a loose shingle, the wind may catch and rip the material away from the roof deck. As soon as the wind gains a foothold underneath the roofing materials, the damage can escalate, ripping the shingles and membrane away from the plywood.

Wind damage may not occur all at once. In areas with frequent high winds, it is important to always be on the lookout for loose or missing shingles and make immediate repairs. If the underlying membrane is torn, the roof is exposed to moisture which can lead to rot, deterioration and mold.

Damage may not always come from the wind directly; it might result from falling objects. Dead tree limbs are a risk to a roof, especially if they are situated directly above it. Monitor your trees and have dead wood removed before it can fall and do any damage. After a violent wind storm, make sure no flying objects have marred the shingle covering.

Shingle Wind Resistance

Shingles are wind resistant up to 60 mph. It is possible to install shingles with a higher wind resistance, up to 130 mph. These types of shingles are more expensive, mainly due to the need for six installation nails as opposed to four, along with an extra dose of roofing cement. When counteracting the effects of wind on a roof, the orientation of the home in relation to wind patterns and the angle of the roof’s pitch will play key roles also, but the primary way to extend a roof’s life is by ensuring secure, thorough installation of all roof components.

Preventative Installation Guidelines

Proper nailing technique when attaching shingles is essential. If nails are sunk in too deeply, the head cuts into the shingle and creates a weakness in the asphalt. Another common mishap is to drive nails in at a crooked angle. Nails should be driven straight into the shingle firmly and securely, but not too deeply.

If the shingle sealant strip was not placed cleanly on the roof, the shingle will not continue to adhere in severe storms. It is also important for roofers to ensure the sealant is not dirty when installed, so as to maximize adhesion, and additional sealant should be applied by hand in high-wind areas where a more significant chance of wind damage is possible. Always depend on a trusted local roofing contractor like Knockout Roofing to properly install and maintain your roofing in order to limit wind damage.