Installing A Metal Roof Over Shingles 2016

It helps direct water away from the.

Installing a metal roof over shingles 2016.

The vast majority of installations of the metal roofing systems produced by my company are over existing shingles. The low weight of metal roofing is one thing that encourages this. Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh. 1 remove the shingles before installing the metal roof the first way to install a metal roof over shingles is by completely removing the old shingles before installing the new metal roof.

However you ll want to check with your local building department before you make any decisions. Get a precise measurement of your roof surface. A benefit to doing it this way is that you can see if there is any rotten plywood that needs to be replaced before installing the new roof. Both metal and shingle roofs are great options for your next roofing project.

This method has its benefits as well. 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. Flashing is metal trim that fits over joints where two sections of roof meet. Can i install a new metal roof over shingles.

Install rubber or foam. After all you ll be making a significant and long term investment. The flashing should overlap the edge of the roof by one inch to help direct. Getting an accurate measurement will help you determine the exact amount of material.

Make a slat board base on top of the shingles. How to install a metal roof over shingles hunker. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof. Start putting the metal panels into place.

Install your metal edging around the perimeter of your roof. 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. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. Things to know about metal over shingle roof problems.

Install the metal edging. Lay down roofing felt over the entire roof. Yes you can install a metal roof over shingles. Bend the flashing into a v shape to fit over the top roof ridge and the corners where the panels meet.