Membrane Roof Over Metal Roof

The reinforcing fabric and bitumen binder are combined into a single roll which makes installation easier.

Membrane roof over metal roof.

For a mechanically attached residential pvc 50 mil membrane installed over a flat or low slope roof on a single. Aluminum is the most popular type of roof over for mobile home users and with good reason. Two common alternatives to tar and gravel are two ply membrane assembly and standing seam hidden fastener metal panels. Polymer modified roof membranes often referred to as modified bitumen are an improvement over built up roof systems and have been in use since the 1960s.

Excluding water intrusion metal roofs are typically much less susceptible to damage from hail and physical damage than the membrane options. Additionally pvc roofs are consistently chosen by homeowners looking to install an eco friendly green system over their flat or low slope roof. And metal roofs come in a variety of different profiles contours making waterproofing a challenge if using sheet type methods. The quality and type of underlayments used on the project in the long term will affect the overall performance of the roof.

Roof over materials 1. Spray applied liquid roofing systems by their very nature being liquid will conform to any roof shape. Example of a single ply over metal retrofit assembly. Many single ply membrane roofs rely on the existing metal roof to function as a structural deck for support and attachment of the roof.

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. Here are the advantages to installing a metal roof over. A mobile home roof over creates a unique opportunity to completely change the look of the home. Single ply over metal.

Expect to pay in the range of 6 50 to 12 50 per sq. Less labor is needed and there are much smaller refuse fees. Tar and gravel first let s talk about what makes a good tar and gravel roof work. 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.

Single ply roof systems are also lightweight and utilized for retrofits over existing metal roofs figure 2. You don t have to do any work or remove any parts on the original roof. Cost installed per sq. Selecting the right underlayments for a lifetime metal roof should be a primary concern for anyone thinking about specifying or choosing to install a metal roof on their home.