Installing A Metal Roof Over Existing Shingles

In a standing seam roof long single panels run vertically all the way from the eave to the ridge.

Installing a metal roof over existing shingles.

Getting an accurate measurement will help you determine the. Lay down roofing felt over the entire roof. 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 the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof.

Start putting the metal panels. The vast majority of installations of the metal roofing systems produced by my company are over existing shingles. Can i install a new metal roof over 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.

Get a precise measurement of your roof surface. This method has its benefits as well. Another added benefit is that the layers of your old roof will further insulate your home. Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh.

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. However you ll want to check with your local building department before you make any decisions. Step by step guide step 1. 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.

In a standing seam roof long single panels run vertically all the way from the eave to the ridge. Your goal with the roofing felt is to make sure everything is as. Use notching scissors to notch the metal in the middle so that it will bend over the ridge. Install with 1 4 inch metal wood screws at a distance of every two feet.

The low weight of metal roofing is one thing that encourages this. Yes you can install a metal roof over shingles. Install the metal trim. 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.