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:
High Chemical Resistance
High resistance to Ground Gasses
Long Term Durability (Performance guaranteed for the lifetime of the building)
Compatible with all building materials
Manufactured to meet the most up to date British Standards and guidance.
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.
A selection of standard details for information and education purposes only. Note - it is strongly advised appropriately qualified, and insured personnel undertake gas membrane installs. A gas membrane performs a critical function in the application setting and has an anticipated design service life in excess of 60 years. Do not attempt to install gas membranes from these details alone. Sole rights for use and distribution are owned by JUTA UK LTD.
Roll weights can be in excess of 20 kg (approx 33 kg/roll) and hence appropriate care and equipment is required for unloading and handling. This product is non-toxic nor flammable.
Rolls of GP®1 SAM should be stored on in a cool, dry place, and be protected from exposure to rain, sun, heat and cold temperatures prior to installation. Exposure to sunlight for extended period of time could cause difficulty with removal of the release film.
Compliance & Certifications
CE Mark - EN13967:2012 + A1:2017 Type (A/T)
BS 8485:2015 Compliant (Methane and Carbon Dioxide Barrier)
BIM objects are digital descriptions of products or materials that, when combined with other BIM objects create a Building Information Model. These downloadable files can be used for these purposes.
Site Investigation Reports Monitoring Results. We review these reports and advise routes for compliance.
Full Ground Gas Protection System Design available.
Wide library of standard details with site specific details on request.
All our installers are certified NVQ Level 2 qualified installation contractors.
We ensure your project complies with the relevant building regulations.
Ground Gas Standards
There are many different standards and guidance documents that detail how to understand the risk of ground contamination, and design solutions to mitigate these risks. The different documents relate to different ground contamination. Below are some of the key documents to be aware of and refer to:
CIRIA C735:2014 – Good practice on testing and verification of protection systems to buildings from hazardous gases
Good practice on testing and verification of protection systems to buildings from hazardous gases
Check design and detailing is in accordance with site requirements
Checks the competency of the installer (NVQ LEVEL 2 minimum)
Test integrity of the membrane/barrier system
Written report on inspection/testing and sign-off
BS8102:2009 – Code of practice for protection of below ground structures against water from the ground
JUTA Solutions & Applications
Our gas protection membranes suit a variety of applications and situations, with our TITAN® range offering not only gas protection but also having superior waterproofing and invasive weed control qualities.
If you feel first class service, premium products direct from source, and bespoke solutions are right for you then don't hesitate to contact our team today on 01772 754177 or email us at firstname.lastname@example.org
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