Company Name:  Gundle API (Pty) Ltd

Address:  P O Box 455 SPRINGS 1560

Telephone:   +27 (0)11 813 2180

Fax :  +27 (0)11 813 2189


Approved Extract

Gundle Gunplas UT 250 Undertile Membrane is manufactured by the certificate holder from three layers of tri-extruded polyethylene film  each 83 (micrometres) thick  the outer layers consisting of virgin polyethylene film that is UV stabilised and has a heat-resistant additive. The finished thickness of the membrane is 250 (micrometres) . It is blue on one side and white on the other. In roofing installations  either colour may be used on top. The membrane is supplied in 30 m long by 6 m wide sheets that are folded double and despatched from the factory in 3 m wide rolls. Gundle Gunplas UT 250 may be installed under all types of roof tiles in a conventional manner in all areas of South Africa  to:reduce air movement between tiles by maintaining a balanced air pressure on both sides of the roof tiles.reduce the likelihood of tiles being dislodged by wind action.reduce ingress to the roof space of wind-driven rain and dust.

This certificate and Agrément South Africa’s assessment apply only to Gundle Gunplas UT 250 Undertile Membrane that is manufactured by the certificate holder and installed under roof tiles  as described and illustrated in this certificate  where the terms and conditions of certification are adhered to.