Install Tin Roof Over Existing Shingles

Make a slat board base on top of the shingles.

Install tin roof over existing shingles. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Yes you can install a metal roof over shingles. Install the metal edging. The low weight of metal roofing is one thing that encourages this.

A steel roof is a lifetime investment lasting 50 years or more if it s a good one. Use 1 1 4 inch. Step by step guide step 1. 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.

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. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof. Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh.

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

However you ll want to check with your local building department before you make any decisions. 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. 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. 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.