Install Tin Roof Over Existing Shingles

Some people think that they can just install the metal roofing right over the old shingles roof without any barrier in between but this is highly not recommended.

Install tin roof over existing shingles.

The vast majority of installations of the metal roofing systems produced by my company are over existing shingles. Lay down roofing felt over the entire roof. However you ll want to check with your local building department before you make any decisions. Your goal with the roofing felt is to make sure everything is as.

Use 1 1 4 inch. Get a precise measurement of your roof surface. The problem with this is that as the metal heats up and expands or cools down and contracts it moves a little on the roof. Start putting the metal panels.

But now that i said that i would tell you that if it was my house i probably would and the reason is i don t want to have all those old shingles under the roof. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof. Install the metal edging. Step by step guide step 1.

Getting an accurate measurement will help you determine the. How to install a metal roof over shingles. Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. Yes you can install a metal roof over shingles.

Make a slat board base on top of the shingles. 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. Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh. Install your metal edging around the perimeter of your roof.

The low weight of metal roofing is one thing that encourages this.