How Do I Install A Metal Roof On My House

And for any exposed fasteners try to avoid over tightening them.

How do i install a metal roof on my house. Can you put steel roofing over asphalt. To install corrugated roofing start by cutting your panels to length with an angle grinder. 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. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

Next use 1 inch nails to secure some metal edging to the perimeter of the roof. Then cover the entire roof with a layer of insulation and secure it with a staple gun. Next pre drill holes on the end and side ridges of the panels spacing the holes 6 to 8 inches apart. Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line.

Here are some pros and cons. 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. Moreover try to ensure that the screws are all aligned evenly. Can you avoid tearing off your old asphalt shingle roof by putting a steel roof over it.

Install the roofing screws vertically along each rib in the panel. 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. How to install a metal roof on a house covering your existing asphalt shingles with metal roofing might be worth the expense. Beginning at the outside edge of your roof place each panel directly onto the purlins that are attached to the roof trusses.

You will use metal roofing screws to secure the metal panels to the sheathing. Most codes now allow no more than two layers of roofing before requiring a complete tear off. In a standing seam roof long single panels run vertically all the way from the eave to the ridge.