Installing A Metal Roof Over A Shingle Roof

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.

Installing a metal roof over a shingle roof.

You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof. The metal used for the roof can be tin copper aluminum or steel. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof.

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. Install the metal edging. Venting the eaves to vent the roof holes are cut in the old roof above the soffit which pulls air through the soffit vents underneath. How to install a metal roof over shingles hunker.

If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. Can i install a new metal roof over 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. In a standing seam roof long single panels run vertically all the way from the eave to the ridge.

The second way to install a metal roof over a shingle roof is with the use of purlins or battens. This method has its benefits as well. For exposed fasteners avoid over tightening the fastener. 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.

Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. 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. Installing metal roofing over shingles is the best solution. Use your neoprene washer head screws to secure the metal to the sheathing.

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. Both metal and shingle roofs are great options for your next roofing project. Another added benefit is that the layers of your old roof will further insulate your home. Space the screws about 12 in 30 cm apart.

Make a slat board base on top of the shingles. After all you ll be making a significant and long term investment.