Damage by Heat Exposure on the Roof

Damage by Heat Exposure on the Roof

Roof venting takes the heat produced by the sun out of the attic or out from under the roof if you live in a subtropical region like OKC. In a hot climate, one of the most important benefits of ventilation is that it prevents your cooling system of your home from overworking.

Next advantage of ventilation is that it protects your roof from the harm that extreme heat and humidity may cause. As a result, it’s critical to understand what types of damage can occur and what a roofing company can do to remedy the situation.

Heat’s Negative Effects

Wood roof rafters, roof decking and roofing joists, expand in hot weather. Roof flashing sealant can stretch and shatter as a result of expanding support beams. While metal flashing is more durable, plastic flashing can be damaged by sunshine. Water can enter into your home through damaged flashing, causing mold and mildew problems.

Heat causes the nails that hold the shingles in place to pop up as the shingles shrink. Blisters in the shingles can be caused by nails that protrude from below. If a professional roofer inspects your roof and discovers that nails have popped and shingles have lifted, at least part of the roof may need to be replaced.

The sun’s heat isn’t your roof’s sole foe. Heat creeping up from below can produce blisters and fractures in asphalt roofing shingles if your home has an attic or an overhead crawl space. Excessive heat can produce blisters in attic areas with limited ventilation, especially on newer roofs. While blisters may not always cause roof leaks, if your roof appears to be in bad health due to widespread blisters, you may need to reshingle sooner than you planned.

Moisture’s Harmful Effects

Warm air traps moisture, which can harm the wood materials used in the roof construction of your home. Roof decking and roofing shingles can both be damaged by high humidity levels. Strong wind has capacity to lift loose shingles and pull off the roof when they become damaged or old.

Mold can form on roofing joists, roof rafters, and attic floor joists as a result of moisture trapped in a crawl or attic space. Mold and moisture both degrade plywood roof sheathing, causing the layers to separate over time. If the situation is severe enough to need replacement of the sheathing, the roofing shingles must also be removed and replaced.

Mold Infestation

Excess moisture trapped in your roof can cause wood rot, which can quickly damage a timber roof structure if not addressed. Roof rafters that show symptoms of degradation caused by mold development may need to be repaired or replaced, depending on the amount of the damage.

A skilled roofer may recommend washing the wood and then painting it with an alcohol-based primer if mold has only caused minimal damage to sheathing, roof rafters, or other roofing timber. Usually it kills mold spores and seals the exterior to prevent them from spreading, the source of the moisture problem must still be identified and corrected.

Condensation-related damage

Condensation is caused by a variety of factors, including holes or leaks in the roof that allow warm air to pass through. If you discover mold on the wood in your attic, vent or insulation exhausts to the outside through the wall.

Exhausts should not be vented through the roof, according to several roofers. Cutting a hole in a roof allows moisture to pass through. Although roof flashing and boots around pipe vents keep water out, any gap in the roof, if not properly maintained, can let moisture in.

Hot air can escape from your property through exhaust vents, such as ridge vents. Outside air can enter the attic or crawl space through intake vents. Hot air on the inside is forced out through the ridge vents by the intake vents.

The roofing experts at Tier 1 Contracting are ready to come out and examine your roof if you need guidance on how to extend the life of your roof.