Inverted roof systems are also referred to as upside down roof assembly.
Protected roof membrane assembly.
Protected membrane roof pmr in a protected membrane roof also known as an inverted roof membrane assembly irma the insulation is installed on top of the membrane.
Protected membrane roofing installation typical installation the following depicts the typical steps necessary to install hydrotech s monolithic membrane 6125 waterproofing roofing membrane assembly.
Vegetative roof assemblies vras are part of a unique roof design category.
Epdm pvc or tpo and has been loose laid the sheets can be most likely be cleaned up enough to be sent back to the factory and reformed into lower performance products such as parking curbs or roof walk pads.
This is intended to be only an illustration and must not be considered a suitable guideline governing the installation of the products.
If the roof membrane is single ply sheeting e g.
The primary distinction of a protected membrane roof assembly pmra is that the roof insulation is placed on top of the membrane.
A protected roof membrane assembly pmra differs from a conventional roof design in that the membrane is placed under the insulation layer maximizing membrane life by protecting it from temperature extremes freeze thaw cycles uv degradation and traffic wear.
Roof shims and pedestals and standard roof pavers can also be reused if undamaged.
Protected roof membrane assemblies prma place the waterproofing membrane below other components known as overburden which may include insulation drainage components growing media pavers aggregate ballast and or vegetation.
The membrane is further protected by ballast overtop the insulation.
1 work included 1 base membrane field see tables 9 1 and 9 2 for acceptable membrane types and application methods.
Protected roof membrane assembly.
Extruded polystyrene xps is the most suitable type.
Ballast options and flexibility.
2 base membrane flashing carried vertically up a wall or parapet membrane flashing must extend up the vertical plane and above the finished roof waterproofing surface at least 200 mm 8 and must extend onto the roof field at least 100 mm 4 greater if.
This is intended to be only an illustration and must not be considered a suitable guideline governing the installation of the products.
One of the advantages of using mm6125 in a protected membrane roof assembly pmr is that once the membrane is installed owners and designers can take advantage of various ballast options gravel pavers and garden roof to suit a specific project s needs.
In an irma the system s insulation is installed above the waterproofing membrane instead of below as in a conventional roof assembly.
Protected membrane roofing installation typical installation the following depicts the typical steps necessary to install hydrotech s monolithic membrane 6125 waterproofing roofing membrane assembly.
Although the theory of a pmra assembly can be adapted many ways the most common form consists of a roof deck a directly adhered or loose laid roof membrane a loose laid extruded expanded polystyrene a loose laid.
Benefits of prmas include.
