How To Steel Roof Over Shingles

Asphalt shingles can weigh up to four pounds per square foot depending on the brand.

How to steel roof over shingles.

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. In contrast steel shingles are. 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. Yes you can install a metal roof over shingles.

However before you decide on reroofing with a metal roof you have to keep in mind that there are specific conditions that make reroofing with a metal roof safe. In some areas building officials only allow a re roof over one layer of shingles. Otherwise you will need to remove 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.

Anatomy of a steel roof. Other areas will allow you to re roof over two layers. 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.

A steel roof is a lifetime investment lasting 50 years or more if it s a good one. Make sure roof is square. For instance decking isn t suitable for a third replacement regardless of condition so a third installation with the same decking won t be structurally sound. Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface.

Before you reshingle a roof read our step by step guide for adding new shingles over old ones. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. If you want to install steel over asphalt your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel.

In a standing seam roof long single panels run vertically all the way from the eave to the ridge.