Putting On Metal Roof Over Shingles

The second way to install a metal roof over a shingle roof is with the use of purlins or battens.

Putting on metal roof over shingles.

In a standing seam roof long single panels run vertically all the way from the eave to the ridge. Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh. A metal roof reduces cooling costs during the summer months because it can reflect the sun s rays. The first is running new underlayment over an existing shingle roof thus covering the old roof.

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. Installing a metal roof on top of shingles can be done in three basic steps only 2 are required. The vast majority of installations of the metal roofing systems produced by my company are over existing shingles. But now that i said that i would tell you that if it was my house i probably would and the reason is i don t want to have all those old shingles under the roof.

It s the simplest and fastest way to install a metal roof. 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. The low weight of metal roofing is one thing that encourages this. Installing metal roofing over shingles there are two primary methods implemented when installing metal roofing over shingles.

The purpose of our channel is to create informational videos. Advantages of metal roofs over shingles. This allows the new underlayment to act as a line of defense in the event that water somehow gets under the metal roof. Otherwise you will need to remove the shingles.

With this video. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof. Well that s why the metal roof is such like an eco friendly product because you don t have to get rid of all of that stuff to the landfills. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.

Winter heating costs may be reduced thanks to a double layer of insulation. Metal roofs over shingles will also provide an extra layer covering your home helping to further insulate it. It provides a solid flat surface to attach the new metal roof to it creates an air gap between the back of the metal and the shingle roof which allows for airflow. This method has its benefits as well.