Metal Roof Layers

It provides structure by tying the trusses and joists together.

Metal roof layers.

Otherwise you will need to remove the shingles. In terms of performance many homeowners choose a steel roof making it the most popular option when it comes to creating a metal roof over existing shingles. Most roof decking is made from sheets of plywood. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles.

Metal roofs over shingles will also provide an extra layer covering your home helping to further insulate it. Staple each strip at the ends and once per square foot in the middle of the strip. Installation of either type of metal roofing underlayment is fairly straightforward. Asphalt shingles can weigh up to four pounds per square foot depending on the brand.

Ice water barrier this self adhering water proof and self sealing membrane is applied to the roof deck. You can usually see the underside of plywood decking from the attic. The metal used for the roof can be tin copper aluminum or steel. Water shield is the next roofing layer that creates a water proof barrier where ice or water can buildup near the roof eaves.

Get free shipping on qualified metal roofing or buy online pick up in store today in the building materials department. Another added benefit is that the layers of your old roof will further insulate your home. Metal roofs can be much more expensive than shingles. Like most other things there are a few disadvantages of choosing metal roofs.

Otherwise they would be found everywhere. It s usually a peel and stick product that adheres directly to the roof deck. Disadvantages of metal roofs. Most often made out of plywood this roof layer is installed over the framing in a typical roof install.

Selecting the right underlayments for a lifetime metal roof should be a primary concern for anyone thinking about specifying or choosing to install a metal roof on their home. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. Metal is the best choice due to its very low weight per square foot and its unique design. Roof deck is the roofing material that sits on top of the roof trusses.

Add strips of felt paper or polymer underlayment horizontally across the roof making sure to overlap the layers by at least four inches. The quality and type of underlayments used on the project in the long term will affect the overall performance of the roof.