Top 5 Reasons to Choose a Protected Membrane Roof
A PMR provides many benefits to the building owner worth considering. This article reviews the top five.
Reversing the arrangement of roofing materials, with the membrane below the insulation, has been referred to for decades as an Insulated Roof Membrane Assembly (IRMA). But it is now most often referred to as a Protected Membrane Roof (PMR).
Protected Membrane Roof Assemblies utilize DuPont™ Styrofoam™ brand insulation, a closed cell extruded polystyrene that can be placed in a wet environment. Located above American Hydrotech’s Monolithic Membrane 6125®, it offers protection from the harsh conditions found on a rooftop.
A PMR provides many benefits to the building owner worth considering. Let’s take a quick look at the top five:
1. Proven Performance – The PMR Assembly has been a proven, time-tested roof assembly for more than 50 years, with thousands of successful installations around the world.
2. Total Roof Life Cost Savings – While the initial cost might be slightly greater, the life cycle cost of a PMR Assembly can be considerably less than that of a conventional roof, since it can last significantly longer...2-3 times longer in fact! This is possible since the membrane below the insulation is protected from the detrimental effects from Mother Nature and physical abuse.
3. Lower Maintenance Costs – Roof maintenance is minimal throughout the service life of a PMR Assembly since the membrane is protected by the insulation layer and topping materials above it.
4. Design Flexibility – A wide choice of topping materials and finishes installed over the membrane and insulation is possible to meet the desired roofs function...be it a simple utilitarian roof covered with stone ballast, accessible usable space with architectural concrete pavers or wood tile, or even a vegetated roof.
5. Future Alterations – Since the insulation and other topping materials above the membrane are typically loose laid, the roof surface can be easily altered to suit a new roof function or aesthetic. This, coupled with the system’s ability to tie back into the existing membrane monolithically, allows for more flexible design.
In today’s day and age, conventional roofing assemblies just don’t cut it. There is a better way: Protect the Mebrane with a PMR Assembly.