Metal roof over shingles condensation metal roofs must be laid flat on a vapor barrier because steel will condensate if there s any air space underneath it.
Roofing problems with shingles.
Both metal and shingle roofs are great options for your next roofing project.
It is essential to the success of your roofing system that the shingles are nailed in the designated areas.
It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same.
When i put in the warranty claim it was denied because the shingles were not completely penetrated by the hail.
Frequent stress from coil slitting cutting and rollforming panels.
After all you ll be making a significant and long term investment.
In fact it s rare for leaks to develop in open areas of uninterrupted shingles even on older roofs.
It often occurs to shingles when they re older and have begun to wear away due to extreme exposure to weather.
Things to know about metal over shingle roof problems.
Put the steel down directly on a vapor barrier.
Shingles farther up the roof are protected by the courses beneath them which catch and divert any water that happens to drip between the edges.
Contact the roofing dog today to request an estimate.
Penetrations can include plumbing and roof vents chimneys dormers or anything else that projects through the roof.
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If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems.
Warranty problems we had a gerard roof installed in 2014 and then had a hail in 2015 with loss of rock and dents in the shingles.
Improper usage handling and storage by installers.
Items that penetrate the roof are by far the most common source of leaks.
Common asphalt shingle failure factors include improper storage and handling of the asphalt shingles before installation improper nailing improper flashing which pertains to any roofing material and defective asphalt shingle product material leading to thermal splitting cracking blistering staining and in some cases curling or cupping shingles.
The first course of shingles needs the same defense from the elements.
This is one of the most common installation errors by contractors which leads to shingles blowing off.
Moisture can then come into direct contact with the roof deck.
Changes to the structure s original form that puts tension on or moves the panels.