Factors That Affect Asphalt Shingle Roofing Wind Resistance
Wind is one of the main causes of roof wear. While we humans cannot control how the wind hits our roofs, we know the factors that let us choose options that can help make our roofs more resistant to damage. In today’s post, Larry Walty Roofing & Guttering Inc. discusses the factors that affect a roof’s susceptibility to wind damage.
How Does Wind Cause Damage to Roofs?
High-speed winds can hit a roofing plane from two directions: its original direction, which is broadly perpendicular to the ground, and upwards when the wind hits the wall under the roof. When the wind hits the roofing plane, it can tug the shingles and flashings lose, creating openings that will let moisture into the roof deck and lead to problems like leaks, rot, and mold growth.
The wind that hits the roof edge from underneath creates uplift, which can damage fasteners, soffit, and fascia. The gutters, which are located at the roof’s edge, are likewise vulnerable to getting torn off the roof. The wind may also exert pressure on the roof’s framing and may weaken the roof’s overall structure, even tear the entire roof off in extreme situations.
Factors That Affect a Roof’s Susceptibility to Wind Damage
The following factors can help you determine the roofing options that can help improve its wind resistance.
- Installation – Proper installation is the primary factor that determines its wind resistance. Correct fastener patterns, proper soffit spacing, and – in the case of a roof with new framing – correct pitch all contribute to a wind-resistant roof. This is why it’s important to hire a licensed and experienced roofer with a workmanship warranty.
- Materials – Heavier materials like slate and tile have better wind resistance than others. However, some roofing manufacturers offer roofing systems with increased wind resistance – some are even warranted for resistance against Category 4 wind speeds.
- Age – A 20-year-old roof won’t have the same wind resistance as it did when new. But you can help reduce the effects of aging by keeping up with the roof’s maintenance requirements.
- Trees – Trees in the yard can be a double-edged sword. Good, strong trees can act as a shield and reduce the impact of wind on your roof. However, tree limbs can get torn off and cause impact damage. The same goes for weak trees with shallow roots – they can get uprooted and fall on the roof.
Larry Walty Roofing & Guttering Inc. provides roof repair and installation services to customers in Winfield, KS, and the surrounding communities. Call or send us a message at 662-488-5149. You may also fill out our contact form to schedule an appointment.
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