Install Metal Roof On Shingles

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.

Install metal roof on shingles.

Most metal shingles will be attached to the roof using metal shingle. Our answer simply depends on what kind of roofing you currently have installed but we usually install metal roofs over existing shingles. For exposed fasteners avoid over tightening the fastener. Yes you can install a metal roof over shingles.

Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. Building officials in some areas will only allow a re roof over one layer of shingles while officials in other places may allow you to place the roof over two layers of shingles. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.

However you ll want to check with your local building department before you make any decisions. 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. 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. The low weight of metal roofing is one thing that encourages this.

Use your neoprene washer head screws to secure the metal to the sheathing. As you plan your metal roof replacement you might be asking a trusted roofing contractor at nc rebuild inc. Otherwise you will need to remove the shingles. In a standing seam roof long single panels run vertically all the way from the eave to the ridge.

Whether you should have your old shingles removed first before having a new one installed. Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. A benefit to doing it this way is that you can see if there is any rotten plywood that needs to be replaced before installing the new roof.

Space the screws about 12 in 30 cm apart.