How To Lay Metal Roofing Over Shingles

What s involved in how to install metal roofing.

How to lay metal roofing over shingles.

As long as the plywood under the shingle roof is in good condition this way can provide many benefits. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. Metal roofing is also available in the form of shingles. Although you can install corrugated metal roofing over shingles for the best foundation it is recommended that all the old roofing be removed.

Need a new roof. Yes you can install a metal roof over shingles. Anatomy of a steel roof. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

3 install 1 4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1 4 purlins over the shingle roof. Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface. Here are some pros and cons.

Remove the old roofing. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Work at a comfortable steady pace trying not to rip up or carry off too much old roofing at once. 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.

This is by far the most common way to install a metal roof. We get asked this question all the time. However you ll want to check with your local building department before you make any decisions. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise.

Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. 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. Otherwise you will need to remove the shingles.

Covering your existing asphalt shingles with metal roofing might be worth the expense. Can i install a new metal roof over shingles. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.