Proctor Group Protech Gm Super
PROTECH GM SUPER MEMBRANE
PROTECH GM SUPER MEMBRANE
Protech GM Super Gas Membrane is a reinforced LDPE, loose - laid, gas barrier that incorporates an aluminium foil layer to provide maximum protection from the ingress of Methane, Carbon Dioxide and Radon in new developments.
The membrane is fully compliant with the recommendations made in Ciria 665, BS8485 and The Local Authority Ground Gas Handbook when installed in accordance with BRE 414.
Protech GM Super is a high performance proprietary reinforced gas barrier that has been specifically designed to conform with the latest guidance documents.
Due to its unique composition, the membrane is extremely robust and flexible and, as a result, easy to install on site.
The membrane also provides protection from damp and, therefore, there is no need to install a separate DPM.
INFORMATION
ROLL LENGTH
50 m
WIDTH
2 m
WEIGHT
370g/m2
THICKNESS
0.4 mm
COLOR
Green / Silver
METHANE PERMEABILITY
(ISO 15105-1) ≤ 0.1 ml/day/m2
VENTING
On sites where venting is required, our Provoid Venting System should be used. We can provide design advice for both passive and active venting systems to suit individual site requirements.
SPECIFICATION
CIRIA C665, BS8485:2015 & Local Authority Ground Gas Handbook recommended that gas membranes are specified on the basis of the ‘need to survive’ construction, i.e. use one that is puncture and tear resistant. Thickness should not be the main determinant of the suitability of a membrane for a particular site, although it can indirectly influence some key performance parameters
In practise, because of the nature of construction sites, the durability, survivability and robustness of membranes are equally important than purely permeability to gas. Protech GM Super incorporates a reinforced grid to ensure that maximum protection is achieved when installed to manufacturers’ instructions
The need for high quality workmanship during installation should not be under-estimated. The health and safety of the occupants of the building is dependent on its satisfactory performance.
If installed incorrectly or damaged during the construction process, the membrane is rendered ineffective and will fail to provide adequate protection against the ingress of ground gas or vapours.
FEATURES AND BENEFIT
- BBA Certified
- Full range of accessories to ensure that the membrane is gas tight
- Aluminium Core for reduced methane permeability on higher risk sites
- Reinforced for superior tear resistance and reduced elongation
- Compatible with the Provoid Gas Venting System
- Manufactured from High Grade Virgin Polymer
CAD DETAILS
- Groundbearing Slab - Groundbearing Slab Internal Wall - Raft Foundation Membrane Above Slab - Raft Foundation Membrane Below Slab
SUPPORT
SITE INVESTIGATION
Site Investigation Reports including Gas Monitoring Results. We can review these reports and advise routes for compliance.
SYSTEM DESIGN
Full Ground Gas Protection System Design available. CIRIA, NHBC & Building Regulations compliant.
SPECIFICATION
Ease of specification with full NBS Plus specifications available for every product. Wide library of standard details with site specific details on request.
INSTALLATION
We are linked to Specialist Installers who are qualified to NVQ Level 2 in Gas Membrane Installation as recommended in CIRIA C735.
VALIDATION
We have close links with independent 3rd party validation professionals, ensuring your project complies with the relevant building regulations.
ACCESSORIES
PROTECTION ACCESSORIES
Our new Ground Gas Protection Accessories Brochure is now available. Download it for complete information on our range of Protech and Provoid Ground Gas accessories.
