Proper Metal Roof Installation

Remove the old roof.

Proper metal roof installation.

Most metal shingles will be attached to the roof using metal shingle. Florida building code allows a minimum pitch of 2 12 for grand rib 3 panels as long as lap screws and sealant are applied to the laps to prevent water from siphoning over the ribs see fig. When you decide to install corrugated metal roofing you just need to make sure that you have the right materials. This means that your vertical lines are all running square to your eave.

It s important to start square because if the first panel is tilted a little bit all the panels that come after are going to be tilted as well. You will need to order enough metal material to cover the entire roof and this process. 1 remove the shingles before installing the metal roof the first way to install a metal roof over shingles is by completely removing the old shingles before installing the new metal roof. Don t let a contractor tell you that it s ok to install your new metal roof over existing asphalt shingles.

An old shingle roof may have water damage and rot that won t go away if it s covered up. A proper installation starts on plywood with a proper waterproof underlayment. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. You home should only have one roof at a time.

Moreover a corrugated metal roof is highly durable and will last for decades. Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. 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.

In a standing seam roof long single panels run vertically all the way from the eave to the ridge. When you re installing a metal roofing panel the first thing that you want to do is make sure you re starting square. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. This style of metal roofing panels requires a certain degree of pitch to ensure proper water drainage.

You ll want to order metal panels that are an appropriate color and look to complement your. 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. Use your neoprene washer head screws to secure the metal to the sheathing.