Tin Roof Over Asphalt Shingles

Installing shingles over metal roofing is not a thing that you should even try to do.

Tin roof over asphalt shingles.

Yes you can and by doing so you save in the labor and hassle of tearing off the old roof and you won t be contributing to filling our landfills. Make a slat board base on top of the shingles. Asphalt shingles are the most popular roofing material. Installing metal roofing over shingles is the best solution.

Can i install a new metal roof over shingles. We get asked this question all the time. Attach them to your roof with 3 inch wood screws in each corner. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems.

The metal used for the roof can be tin copper aluminum or steel. They are available in a variety of colors and textures are low cost and provide a traditional aesthetic. Move from bottom to top. When choosing to install a metal roof homeowners need to.

However you can install metal roofing over the asphalt shingles but vice versa is not recommended. Most codes now allow no more than two layers of roofing before requiring a complete tear off. Besides the necessary roofing skills you will need to learn tips specific to shingles installation. 3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof.

Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. Both metal and shingle roofs are great options for your next roofing project. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof. Building officials in some areas will only allow a re roof over one layer of shingles while officials in other places may allow you to place the roof over two layers of shingles.

However you ll want to check with your local building department before you make any decisions. In terms of performance many homeowners choose a steel roof making it the most popular option when it comes to creating a metal roof over existing shingles. Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh. After all you ll be making a significant and long term investment.

I would say that in most cases less weight is being added to the home by the new metal roof than what the current shingles have lost due to granule wear and oil evaporation. So if your roof has two layers it may require a complete tear off even though steel is lighter than asphalt. 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.