Why Do Roof Shingles Blown Off

Most asphalt shingle roofs are built to withstand extreme weather.

Why do roof shingles blown off.

If it rots or warps shingle nails can pop causing shingles to be easily blown off the roof. We always prefer to repair over replacement if it is viable better for your wallet. 3 tabs are rated for 60 70 mph winds and architectural 110 130. If the roof is new it is possible that the seal strips have not had a chance to properly set.

But in some cases the extreme wind can catch a shingle and blow it off the roof. But when shingles are blowing off a full replacement will be the safest option for your family and your home. Inexperienced roofers have been known to attach the shingles with the adhesive strip but fail to use roofing nails. And we tend to get a lot of it.

These are the things that lead to blow off but other typical bad roofing issues are. Shingle blow off can lead to deck damage. Roof shingles must be fastened and sealed properly with nails. In the above case the shingles did for the most part stay flat but as can be seen on a number of shingles started to crack horizontally.

Shingles are supposed to be fastened securely to roof decking and if the decking has issues like wood rot deformities or warping they can easily loosen up and be blown off at the slightest gust of wind. If parts of your roof fly off on a normal gusty day likely you have an installation problem. A no starter course b shingle ends are not staggered c blown off shingles not repaired correctly and the holes in the paper underlayment not sealed correctly where nails have withdrawn from blow off. If the tar strip is only partly sealed then this provides very little resistance to wind forces with the result that the shingles are susceptible to blow off.

Depending on the temperature amount of sun exposure and quality of the shingles this can take 4 6 weeks. Where one shingle tab blew off your roof you have a 1 in 3 chance that the missing shingle was sitting directly above an open seam between the shingles below. It is essential to ensure that they are correctly fastened and the nails have penetrated well enough to hold the shingles against strong winds. But these shingles need to be nailed properly and in fairly good condition with sealant strips sealed to sustain high winds like this.

Severe high winds can blow shingles off especially worn roofing or shingles around the 10 year mark. If that s the case. Unfortunately if certain sections of the roof are blowing off it s probably an indicator that your roof is no longer secure. Lack of care maintenance.

If shingles are allowing moisture to penetrate the roof the deck can become compromised. Shingles on the ridge and eaves of the roof are especially susceptible to sprouting wings and taking flight.