

Design Possibilities with Protected Membrane Roofs
The choice of a PMR Assembly depends on a number of factors that ultimately will determine its final form.
The roof is a blank canvas. What do you envision?
To address the numerous conditions and configurations that can be created on a rooftop, Protected Membrane Roof (PMR) Assemblies come in a wide variety of forms and functions. These assemblies range from a typical stone ballasted PMR to others that add beauty and/or additional rooftop functionality.
The choice of a PMR Assembly depends on a number of factors that ultimately will determine its final form. Below are some key questions that must be asked in order to arrive at an ideal PMR Assembly.
- What is the roof’s intended use?
- What is the owners desire?
- What are the aesthetic considerations?
- What are the limitations?
- Budgetary constraints?
- Structural limitations?
The design of a PMR Assembly depends greatly on its intended use. But regardless of the design, every PMR Assembly relies on the same membrane and insulation. This allows Hydrotech to provide a number of PMR Assemblies to meet just about any design need:
- Stone Ballast – typical roof covering
- Hydroguard® – a lightweight self ballasted alternative (perfect for metal deck applications)
- Ultimate Assembly® – architectural finish or simple concrete ballast pavers
- The Garden Roof® Assembly – providing usable green space, stormwater retention and much more.
It is important to remember that form always follows function when it comes to PMR Assemblies. And with Hydrotech, neither are compromised.