Putting Metal Roof On Top Of Shingles

A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles.

Putting metal roof on top of shingles. An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. 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. Covering your existing asphalt shingles with metal roofing might be worth the expense.

Can you avoid tearing off your old asphalt shingle roof by putting a steel roof over it. It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same. After all you ll be making a significant and long term investment. Whether you are looking to install a metal roof on a shed or a house it s important to know the difference in the various types of metal roofs available.

These systems aren t attached to a frame but instead install directly on the old roof. Otherwise you will need to remove the shingles. Here are some pros and cons. Things to know about metal over shingle roof problems.

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. 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. Most codes now allow no more than two layers of roofing before. Metal roofs must be laid flat on a vapor barrier because steel will condensate if there s any air space underneath it.

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. Let s take a look at the most common types of metal roofs for houses. Metal roof over shingles condensation. 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.

Need a new roof. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. Can you put metal roof 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.

Put the steel down directly on a vapor barrier. Both metal and shingle roofs are great options for your next roofing project.