Proper Way To Install Metal Roof Over Shingles

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.

Proper way to install metal roof over shingles.

For exposed fasteners avoid over tightening the fastener. Brace your extension ladder. Step 3 install slat board. My answer often surprises people.

Step 2 measure roof. After all you ll be making a significant and long term investment. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. Otherwise you will need to remove the shingles.

Choose a day with calm weather to work on the roof. Metal roofing is very slippery when wet. 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. Step 4 install edging.

Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Laying steel roofing over shingles the right way. I frequently am asked whether homeowners and contractors should remove roof shingles from a home s roof before a new metal roof is installed. Space the screws about 12 in 30 cm apart.

Most metal shingles will be attached to the roof using metal shingle. Things to know about metal over shingle roof problems. Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. 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.

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

Both metal and shingle roofs are great options for your next roofing project. However it is based upon experience with tens of thousands of installations over many years. Step 1 make a slat board base on top of the shingles. Yes you can install a metal roof over shingles.

If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. Step 5 install metal.