A professional can prevent you from making costly or dangerous mistakes. Golden tips for installing metal roofing over shingles with an aging asphalt shingle roof homeowners are usually left with two choices.
Both options have their benefits and drawbacks.
How to install metal roofing over shingles. Make sure roof is square. The vast majority of installations of the metal roofing systems produced by my company are over existing shingles. Both metal and shingle roofs are great options for your next roofing project.
To tear off the shingles and replace with a new roof or to install a metal roofing system over the existing roof. If you re considering getting a metal roof you may be wondering if you can install it over shingles. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems.
After all you ll be making a significant and long term investment. Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh. Things to know about metal over shingle roof problems.
If you install your metal roof over a leaky or buckling roof it will lead to an expensive repair job. Even the handiest of homeowners shouldn t rely on their own skills to install a metal roof. Doesn t provide the flattest surface for the metal roofing to be installed over each course of shingles is about a 1 8 higher than the course just below it.
If you don t want to take our word for it check with your local building department. 3 install 1 4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1 4 purlins over the shingle roof. Work at a comfortable steady pace trying not to rip up or carry off too much old roofing at once.
Although you can install corrugated metal roofing over shingles for the best foundation it is recommended that all the old roofing be removed. We re going to answer that question in this blog so keep reading or give our legacy service team a call at 215 798 9790 if you re considering a metal roof replacement. Remove the old roofing.
Asphalt shingles can weigh up to four pounds per square foot depending on the brand. The low weight of metal roofing is one thing that encourages this. In some areas building officials only allow a re roof over one layer of shingles.
Metal roofing is much more difficult to install than asphalt shingles. Metal roofing weighs less than one pound per square foot.
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