Proper Metal Roof Installation

Don t let a contractor tell you that it s ok to install your new metal roof over existing asphalt shingles.

Proper metal roof installation.

Space the screws about 12 in 30 cm apart. Corrugated metal roofing can be a convenient and relatively affordable way to provide protection without the need to install metal shingles. You will need to order enough metal material to cover the entire roof and this process. 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. You home should only have one roof at a time. Moreover a corrugated metal roof is highly durable and will last for decades. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.

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. For exposed fasteners avoid over tightening the fastener. This style of metal roofing panels requires a certain degree of pitch to ensure proper water drainage. 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.

A proper installation starts on plywood with a proper waterproof underlayment. When you re installing a metal roofing panel the first thing that you want to do is make sure you re starting square. Most metal shingles will be attached to the roof using metal shingle. In a standing seam roof long single panels run vertically all the way from the eave to the ridge.

Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. You ll want to order metal panels that are an appropriate color and look to complement your. Use your neoprene washer head screws to secure the metal to the sheathing. Measure the roof area.

Remove the old roof. 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. Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are.