Putting Shingles Over Metal Roof

Need a new roof.

Putting shingles over metal roof. Can you put steel roofing over asphalt. It provides a solid flat surface to attach the new metal roof to it creates an air gap between the back of the metal and the shingle roof which allows for airflow. This method has its benefits as well. However you ll want to check with your local building department before you make any decisions.

Determine the measurement of your roof the measurement of your roof will help you know the number of materials you. Rip cut the starter strip or starter pieces so that they butt up against the second course of existing shingles and are even with the front edge of the existing roofing. Apply roofing felt all over your roof you need to make the roof as straight as possible. There are two primary methods implemented when installing metal roofing over shingles.

What to consider when putting a steel roof over asphalt shingles. Installing metal roofing over shingles 1. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof. Well that s why the metal roof is such like an eco friendly product because you don t have to get rid of all of that stuff to the landfills.

In a standing seam roof long single panels run vertically all the way from the eave to the ridge. Thus wood strips would be. By the diy experts of the family handyman magazine. This allows the new underlayment to act as a line of defense in the event that water somehow gets under the metal roof.

The second way to install a metal roof over a shingle roof is with the use of purlins or battens. 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. If you want to install steel over asphalt your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel. The first is running new underlayment over an existing shingle roof thus covering the old roof.

Here are some pros and cons. Covering your existing asphalt shingles with metal roofing might be worth the expense. The purlins are screwed or nailed down to the roof deck depending on how the metal roofing manufacturer has testing for their roofing panels and then the metal is installed to the purlins. Yes you can install a metal roof over shingles.