BS EN 13897:2004 PDF Download

BS EN 13897:2004 is a standard that outlines a test method for determining the watertightness of flexible sheets used for waterproofing after being stretched at low temperatures. This standard specifically applies to bitumen, plastic, and rubber sheets used for roof waterproofing. The purpose of this test is to evaluate the performance and durability of these sheets under stress and at low temperatures.

The test described in this standard involves subjecting the flexible sheets to a stretching process at low temperatures, followed by assessing their ability to remain watertight. It is important to note that this standard is applicable only for mechanically fastened single-layer waterproofing systems. Though primarily intended for roofing applications, this standard may also be used in other relevant areas where flexible sheets are used for waterproofing.