How To Lay Metal Roofing Over Shingles

Here are some pros and cons.

How to lay metal roofing over shingles. 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. What s involved in how to install metal roofing. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

How to install a metal roof over shingles what to consider when putting a steel roof over asphalt shingles. A steel roof is a lifetime investment lasting 50 years or more if it s a good one. 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 what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

Need a new roof. Anatomy of a steel roof. This is by far the most common way to install a metal roof. As long as the plywood under the shingle roof is in good condition this way can provide many benefits.

Before you reshingle a roof read our step by step guide for adding new shingles over old ones. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.

Covering your existing asphalt shingles with metal roofing might be worth the expense. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. Otherwise you will need to remove the shingles. Yes you can install a metal roof over shingles.

Remove the old roofing. Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface. We get asked this question all the time. Can i install a new metal roof over shingles.

Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. 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. Although you can install corrugated metal roofing over shingles for the best foundation it is recommended that all the old roofing be removed. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.