Proper Way To Install Metal Roof Over Shingles

Use your neoprene washer head screws to secure the metal to the sheathing.

Proper way to install metal roof over shingles. Otherwise you will need to remove the shingles. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Step 2 measure roof. Step 5 install metal.

Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. After all you ll be making a significant and long term investment. 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. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems.

The industry standard for underlayment is often thought of as felt paper tar paper but there are also many newer synthetic underlayments that are designed to work well with metal roofing. I frequently am asked whether homeowners and contractors should remove roof shingles from a home s roof before a new metal roof is installed. In a standing seam roof long single panels run vertically all the way from the eave to the ridge. Metal roofing is very slippery when wet.

Step 1 make a slat board base on top of the shingles. Both metal and shingle roofs are great options for your next roofing project. Things to know about metal over shingle roof problems. Laying steel roofing over shingles the right way.

A layer of underlayment installed on top of the existing shingles will help keep the granules of the old shingles from rubbing against the back of the metal and causing possible corrosion. Brace your extension ladder. Choose a day with calm weather to work on the roof. Get a good look at the overall condition of the roof before installing a new metal roof have the opportunity to nail off the plywood to new and more stringent florida building codes.

However you ll want to check with your local building department before you make any decisions. Space the screws about 12 in 30 cm apart. Step 4 install edging. However it is based upon experience with tens of thousands of installations over many years.

Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Most metal shingles will be attached to the roof using metal shingle. Step 1 work safely. Yes you can install a metal roof over 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. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.