Metal Roof On Top Of Shingles

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.

Metal roof on top of shingles.

This is by far the most common way to install a metal roof. 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. Metal roofing sheets have to be installed one at a time. Fiberglass core or matting an asphalt coating and a ceramic or stone granule surface give this material its durability.

The second way to install a metal roof over a shingle roof is with the use of purlins or battens. The purlins are screwed or nailed down to the roof deck depending on how the metal roofing manufacture has testing for their roofing panels and then the metal is installed to the purlins. Place a sheet from top to bottom on a section of the roof. A shingle style roof is the most popular choice.

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. Adding additional layers of insulation can solve this problem but it will increase installation costs. They are available in a variety of colors and textures are low cost and provide a traditional aesthetic. Common problems with shingle roofs.

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. Unlike most roofing materials metal roofs can be noisy especially when it rains or hails. Metal roofs generally can run from 120 to 900 per 100 square feet one 10 foot by 10 foot area or a square of material while asphalt shingles will be between 100 and 200 per 100. Install metal roofing sheets.

Use 1 4 inch metal wood screws to attach the metal sheets to the wood slat board base. As long as the plywood under the shingle roof is in good condition this way can provide many benefits.