Installing Metal Roof Over Nearly Flat Membrane Roof

This is part 1 of a 6 part video series explaining how i installed a metal roof on my house.

Installing metal roof over nearly flat membrane roof.

Two common alternatives to tar and gravel are two ply membrane assembly and standing seam hidden fastener metal panels. Flat metal roofs can last for almost 35 years in ideal conditions. Metal specifically aluminum is known for its durability. 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.

But now flat roofs often are constructed with fewer layers because of improved waterproofing technology. A mobile home roof over involves placing a new roof or roofing material over your existing roof there s little to no material removed which can keep costs down. This could mean flat roofs may not raise the same red flags they used to. To install it slide the flat wide.

Canadian drugs we have recently completed a metal reroof project. Then cover the entire roof with a layer of insulation and secure it with a staple gun. Next use 1 inch nails to secure some metal edging to the perimeter of the roof. Install drip edge drip edge or edge metal is a piece of metal that extends approximately 0 75 inch beyond the roof s edge to channel runoff into your gutters.

Less labor is needed and there are much smaller refuse fees. If you have a tar and gravel low slope roof typical of constructions in many areas in montreal you may consider changing the roofing material to something else. Our goal was to provide a water tight roofing system by installing a tpo roofing system and increase the r value of the roof by installing a eps flute filler and iso roof insulation. 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.

As with most older metal buildings the metal roof panels had expanded and contracted over time causing the roof to leak. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. In a standing seam roof long single panels run vertically all the way from the eave to the ridge. In this video i cover measuring the roof figuring the metal th.

Some observers suggest it s harder to replace a flat roof than a traditional pitched shingle roof because of the labor required to remove its layers especially on older flat roofs. Flat roofs are hard to replace. Plus it has the added advantage of reflecting heat from the sun which keeps energy costs down. Install the roofing screws vertically along each rib in the panel.

A mobile home roof over creates a unique opportunity to completely change the look of the home.