Flat Roof Membrane Detail

Membrane roofs are attached in a variety of ways.

Flat roof membrane detail.

The major difference between the warm flat roof and the cold flat roof has to do with the air flow between the roofing timbers known as joists that help to hold up the roof. This could mean flat roofs may not raise the same red flags they used to. On a flat roof generally speaking you want to avoid any types of seams if at all possible. Grace roof detail membrane is the only product available today designed specifically for waterproofing critical roof detail areas.

A roof is considered to be flat when it is of a slope of 1 5 o to the horizontal. Four plies denotes a four layer flat roof membrane system. Although flat roofs are cheaper to build than pitched roofs they have a shorter life span. Side lap detail fully adhered system.

Flat roofs are practical affordable and are celebrating an architectural comeback. Termination at rtu with welded lap. Waterproof membrane to prevent water penetrating the structure and interior of the. Roof membrane layout mechanically attached.

The number of plies on a roof implies the number of layers i e. Termination at rtu with counter flashing. They can be partially loose laid and held down with river rock ballast requires roof structure to support the weight or fully adhered to the roof deck. Side lap detail mechanically attached.

Flat roofs are hard to replace. Vertical wall edge termination. But now flat roofs often are constructed with fewer layers because of improved waterproofing technology. Banding is typically used to seal soil vent pipes on single ply roofs such as fdt rhepanol pib and involves wrapping an unreinforced membrane around the pipe to a minimum height of 150mm an approved sealant is then applied to the top of the membrane.

Epdm and neoprene roof seams are fastened by adhesive and pvc roof seams are heat or solvent welded. Flat roof waterproofing with resitrix epdm roofing membranes reliable roof waterproofing for all flat roof systems. In the warm flat roof construction there is insulation packed into every possible space where air can flow. What typical detailing methods are used to seal flat roof penetrations.

The biggest threat is of course going to be water which will find any access though any hole or inadequately sealed seams in a roofing membrane. 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. Typical methods include banding pitch pockets and cover flashings. Flat roof construction for residential.

A flat roof usually consists of the following. Roof membrane layout adhered. Your main goal when covering a flat roof is to create a barrier that will be impenetrable to water.