Standard: ASTM E907-04 – Standard Test Method for Field Testing Uplift of Adhered Membrane Roofing Systems

Scope: ASTM E907 covers the determination of the resistance of adhered membrane roofing systems to uplift pressure.

Applicable Products: Roofing systems with or without rigid board insulation or base ply, which are either adhered or mechanically fastened, and fully adhered membranes.

Test Procedure: A controlled negative pressure is created on top of the roof surface by means of a chamber fitted with a pressure sensing device and vacuum equipment. Loose surfacing such as gravel, slag or granules are removed via sweeping a wide path around the perimeter of the test area. A heavy pouring of hot asphalt is applied over the swept area and allowed to cool. This provides a smooth surface and allows the edges of the chamber to be in complete contact with the roof surface so that a negative pressure is developed inside the chamber. Other methods are not to be used to prepare the test area unless the method used will produce a tight seal and is compatible so as not to damage the roof membrane. Additional approved methods for sealing the chamber are the use of wet sand, duct tape, water or polythene film.

End Result: Upon the completion of a successful test, the roofing system meets the performance criteria for water penetration resistance or does not meet criteria and further remediation may be required to pass.

 

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