New product from BSW: Building protection strips with added fire protection

Flying sparks, heat radiation and falling, burning objects such as fireworks constitute a substantial fire risk. This applies particularly in the case of flat roofs. To reduce this risk, BSW has now developed a flame-resistant building protection strip based on its Regupol material. Due to its flame-resistant properties, the strip qualifies as "hard roofing".

Available from specialist building materials and roofing dealers, the strips are marketed under the name on “Regupol resist FH” and are applied as a full-surface protective layer over the roof sealing of flat roofs with a maximum pitch of 20°. These are the first building pro-tection strips on a rubber basis to be awarded the general construc-tion test certificate. They are classified to Broof (t1) and therefore as resistant to flying sparks and radiated heat. In the fire test carried out by the MPA Dresden, the fire only spread to a minor extent on this product, went out in less than 30 minutes and did not penetrate downwards through the 8-mm thick material.

Since one square metre of a conventional, normally inflammable building protection strip of PUR-bonded rubber has the same calorific value as around five litres of fuel oil, this product reduces the fire load very substantially.

Since Regupol resist FH is classified to DIN V ENV 1187 as hard roofing, the material does not in principle require any additional mineral material in order to reduce the fire risk. Gravel fillings and concrete slabs serve only to fix the material in place, and can there-fore be reduced to the minimum. This allows a corresponding sub-stantial reduction of the roof load, which is of particular advantage in the structural design of roof renovations. In such cases, the requirements on the load-bearing capacity of flat roofs are today stricter than at the time of their initial construction. Regupol resist FH therefore also offers major advantages for light roof constructions.

The flame-resistant properties of Regupol resist FH therefore make a major contribution to passive fire protection. In the fire insurance risk assessment by a fire safety assessor, the product is a major plus point, and an advantage when it comes to setting the premi-ums. Regupol resist FH therefore also offers cost benefits due to the reduction of the otherwise essential additional roof coverings.

The material is laid in exactly the same way as conventional build-ing protection strips or tiles, has the same application properties, identical weight and appearance.

In addition to Regupol resist FH, the BSW range also includes the elastic Regupol roof and paving tiles. These tiles can be quickly laid on flat roofs, and serve as maintenance gangways between the solar modules. They are also flame-resistant, and their elastic consistency prevents damage to the roof sealing, in contrast to concrete slabs. Thanks to their relatively light weight, they are easy to lay. The connection of the tiles by dowels produces a reliably fitted surface.

The protective and separating layer “Regupol resist solar” has been developed by BSW specially for photovoltaic modules on flat roofs. It protects the sensitive roof sealing against damage from the support fittings of photovoltaic systems. Regupol resist solar consists of a rubber-polyurethane compound and an underside aluminium lining. The mats are 6 mm thick and are extremely resistant to impacts, pressure and scratches. They are therefore resistant to damage from the support fittings of the solar modules and protect the roof sealing. The aluminium lining on the underside prevents migration of softeners in case of PVC sealing.

2,518 characters including empty spaces and headings | Copy requested on publication. | 3,695 characters with the roof and paving tiles + Regupol resist solar.

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REGUPOL BSW GmbH