JUTA GP®1 SAM gas protection self-adhesive membrane is a bituminous gas-proof and waterproof sheet. It is used for the gas/ waterproofing of underground structures where harmful ground gases are anticipated and as a self-adhesive accessory to GP®1.
GP®1 SAM gas protection self adhesive membrane, is a bituminous gas proof and water proof sheet, composed of self-adhesive SBS polymer modified bitumen incorporating GP® 1 with an upper surface finish of black reinforced LDPE, and a lower surface finish of siliconized release film. GP®1 SAM is used for the gas/waterproofing of underground structures where harmful ground gasses are anticipated, and as a self adhesive accessory to GP® 1.
Self adhesive membranes are bituminous membranes, composed of self-adhesive SBS polymer modified bitumen incorporating an upper membrane element, and a lower surface finish of siliconized release film. The type of SAM is dependent on the application scenario as prescribed below, and they are generally used for the gas/waterproofing of underground structures where harmful ground gasses are anticipated, and as a self-adhesive accessory to GP® membrane systems.
Can be used on any site in accordance with BS8485:2015 and NHBC requirements where carbon dioxide, methane or radon is present up to and including CIRIA 665 SITUATION 6. The barrier is sufficiently resistant to the ingress of harmful gasses into a building. On more heavily contaminated sites a passive or active venting system may be required to dilute the gasses down to acceptable levels and specific design advice should be sought.
JUTA UK – radon, ground gas, vapour, air and moisture barrier characteristic properties:
GP®1 SAM should be installed in accordance with the product installation guidelines, and in accordance with BS 8485:2015, and/or BS 8102:2009. It is recommended that GP®1 SAM is not applied in temperatures below 10oC, in colder weather the material can be warmed slightly to aid adhesion.
