Installation Of Metal Roofing Over Existing 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.

Installation of metal roofing over existing shingles.

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. Yes you can install a metal roof over shingles. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. The first one being that the new underlayment will act as a second line of defense in case water would to somehow get underneath the metal roof.

Can i install a new metal roof over shingles. In a standing seam roof long single panels run vertically all the way from the eave to the ridge. The low weight of metal roofing is one thing that encourages this. 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.

This provides a couple of benefits. 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. Your goal with the roofing felt is to make sure everything is as. In a standing seam roof long single panels run vertically all the way from the eave to the ridge.

Getting an accurate measurement will help you determine the. Otherwise you will need to remove the shingles. Step by step guide step 1. Get a precise measurement of your roof surface.

There are really two ways to install a metal roof over a shingle roof. Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh. By jamie lisse a metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. However you ll want to check with your local building department before you make any decisions.

Start putting the metal panels. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal 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. The first way is to run new underlayment over the existing shingle roof completely covering the old roof.

Lay down roofing felt over the entire roof. The vast majority of installations of the metal roofing systems produced by my company are over existing shingles. Another added benefit is that the layers of your old roof will further insulate your home.