Ok To Install Metal Roofing Directly Over Shingles

Both metal and shingle roofs are great options for your next roofing project.

Ok to install metal roofing directly over shingles.

Some jurisdictions require a full and complete tear off whenever a new roof is being installed. This method has its benefits as well. Otherwise you will need to remove the shingles. Asphalt shingles can weigh up to four pounds per square foot depending on the brand.

Yes you can install a metal roof over shingles. As long as the plywood under the shingle roof is in good condition this way can provide many benefits. Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface. Metal roofing weighs less than one pound per square foot.

In some areas building officials only allow a re roof over one layer of shingles. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. 3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems.

This is by far the most common way to install a metal roof. Before you reshingle a roof read our step by step guide for adding new shingles over old ones. In a standing seam roof long single panels run vertically all the way from the eave to the ridge. If you don t want to take our word for it check with your local building department.

If you install metal over shingles if you do decide to install your new metal roof over your old shingles be sure to consult local building codes. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros. The second way to install a metal roof over a shingle roof is with the use of purlins or battens. After all you ll be making a significant and long term investment.

The purlins are screwed or nailed down to the roof deck depending on how the metal roofing manufacturer has testing for their roofing panels and then the metal is installed to the purlins. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles.