Putting Metal Roof On Top Of Shingles

Installing a metal roof over shingles can also result in an increased chance of trapped water vapor and moisture between the new roof and old roof resulting in new mold and rot.

Putting metal roof on top of shingles.

Things to know about metal over shingle roof problems. Can you put metal roof over shingles. Can you avoid tearing off your old asphalt shingle roof by putting a steel roof over it. Covering your existing asphalt shingles with metal roofing might be worth the expense.

Here are some pros and cons. Most codes now allow no more than two layers of roofing before. Put the steel down directly on a vapor barrier. These systems aren t attached to a frame but instead install directly on the old roof.

If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same. Consequently they don t have the same ventilation advantages. But some steel shingle manufacturers offer do it yourself systems that cost about the same as an installed asphalt roof.

A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. A metal roof can be installed over a shingle roof but you ll need to make sure the plywood under your shingle roof is in good enough shape to handle a new metal roof over top. Choosing to install a metal roof this way can save you some dough and garner all of the benefits of a metal roof in the humid climate of florida. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.

Metal roof over shingles condensation. Need a new 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. An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.

Doesn t provide the flattest surface for the metal roofing to be installed over each course of shingles is about a 1 8 higher than the course just below it. Otherwise you will need to remove the shingles. By removing the old roof before the new roof s installation you are able to give the underlayment a thorough inspection to ensure there are no damages that could. Metal roofs must be laid flat on a vapor barrier because steel will condensate if there s any air space underneath it.

Can you put metal roof over shingles. Both metal and shingle roofs are great options for your next roofing project.