Protech VOC Flex is a high performance 6 layer flexible proprietary reinforced VOC barrier and is suitable for use on brownfield sites that require protection from dangerous contaminants such as hydrocarbons.
The Protech VOC Flex has been developed to ease installation on site due to the flexibility of the membrane. It is also suitable as a high performance damp proof membrane.
- Additional damp proofing protection
- High resistance to puncturing
- BBA Certified
Protech VOC Flex
Installation
Protech VOC Flex should be unrolled over the prepared ground or sub-floor which should be swept and free from any sharp protrusions. The A. Proctor Group would advise that Protech VOC Flex is welded to provide protection against VOCs as per CIRIA C716 : 2012 Remediating and mitigating risks from VOC vapours from land affected by contamination. We can advise on site specific jointing techniques where applicable.
In areas where the membrane crosses cavity walls or internal single skin walls, Protech VOC Flex Starter Band should be used in conjunctions with Protech VOC Flex Internal and External preformed corner units. Pipe penetrations should be sealed with Protech VOC Top Hats or Protech GM Flashing Strips. Stanchions and columns should be sealed with Protech Primer and Protech GM Flashing strips.
Accessories
Brochures
Datasheets
Installation Guides
Material Properties
UK Availability
Certification
CAD Details
Global Availability
Material Properties
Protech VOC Flex
| Property | Test Method | Result |
|---|---|---|
| Roll Size | - | 50 x 2 m |
| Thickness | - | 0.55 mm |
| Weight | ISO 536 | 564 gsm |
| Tensile Strength | EN 12311-1 | MD 700 / CD 640 N/50mm |
| Elongation | EN 12311-1 | MD 30% CD 25% |
| Nail Tear Resistance | EN 12311-1 | MD 500 / CD 540 N |
| Methane Permeability | ISO 15105-1 | ≤0.1 ml/m2/day |
| Determination of Chemical Resistance | EN 14414 Methods A-D | Pass - No visual degradation |
| Resistance to Naphthalene | ISO 15105-2 (EN 14414 Method C) | Pass |
| Resistance to Benzene | ISO 15105-2 (EN 14414 Method C) | Pass |
| Resistance to Toluene | ISO 15105-2 (EN 14414 Method C) | Pass |
| Resistance to Hexane | ISO 15105-2 (EN 14414 Method C) | Pass |
Support at every stage - from site investigation to validation
-
1 Site Investigation
Site Investigation Reports including Gas Monitoring Results. We can review these reports and advise routes for compliance. -
2 System Design
Full Ground Gas Protection System Design available. CIRIA, NHBC & Building Regulations compliant. -
3 Specification
Ease of specification with full NBS Plus specifications available for every product. Wide library of standard details with site specific details on request. -
4 Installation
We are linked to Specialist Installers who are qualified to NVQ Level 2 in Gas Membrane Installation as recommended in CIRIA C735. -
5 Validation
We have close links with independent 3rd party validation professionals, ensuring your project complies with the relevant building regulations.
Ground Gas Accessories
Protech GM Flashing
Protech GM Flashing Strip is a waterproof and gas resistant tape protected by an aluminium film and reinforced with a polyester film.
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Protech GR DPC
Protech GR-DPC is a gas resistant DPC used through junctions with cavities or masonry to protect against the ingress of gas and damp.
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Protech GM Protection Fleece
Protech GM Protection Fleece used to protect the integrity of the Protech Gas Membranes from follow on trades or from sharp protrusions in made ground.
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Protech SAGM
Protech SAGM is a self adhesive gas and waterproofing membrane for use in detailing and vertical installation applications.
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Protech SAGM Installation Guide
Protech SAGM is a self adhesive gas and waterproofing membrane for use in detailing and vertical installation applications.
Installation Guide
Protech GM Primer
Protech GM Primer is used in conjunction with Protech SAGM and Protech GM Flashing in order to consolidate the substrate and ensure complete bond development.
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Protech Protection Board
Protech Protection Board used to protect the integrity of the Protech Gas Membranes mainly in vertical applications.
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Protech GM Tape
Protech GM Tape is used to seal overlaps in gas membranes and accessories, and also below timber sole plates.
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Protech TF Tape
Protech GR-DPC is a gas resistant DPC used through junctions with cavities or masonry to protect against the ingress of gas and damp.
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Protech LAGM
Protech LAGM * (Liquid Applied Gas Membranes) is used in areas of vertical applications or in hard to treat areas.
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Protech GM Super Starter Band
Protech GM Super Starter Band has a dual function to provide a continuous barrier to gas which is then linked in with the horizontal Protech GM Super Membrane. Protech GM Super Starter Band crosses the cavity to prevent ingress of gas
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Protech VOC Flex StarterBand
Protech VOC Flex Starter Band has a dual function to provide a continuous barrier to gas which is then linked in with the horizontal Protech VOC Flex Membrane. Protech VOC Flex Starter Band crosses the cavity to prevent ingress of gas.
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Protech GM Corners
Protech GM Internal & External Corners are recommended to achieve a gas tight seal and as technically a better solution. Corners available to suit all Protech gas membranes. Alternative sizes available on request.
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Protech GM Top Hats
Protech GM Internal & External Corners are recommended to achieve a gas tight seal and as technically a better solution. Corners available to suit all Protech gas membranes. Alternative sizes available on request.
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Protech Tool Box
Starter Toolbox for detailing gas membranes.Each box includes: • 45mm Silicone Seam roller • 6mm Brass Penny Roller • Heavy Duty Scissors • 5m Tape Measure • Permanent Marker Pen.
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Provoid Gully Vent Boxes
Provoid Gully Vent Boxes are an integral part of the Provoid Gas Venting System to act as inlets and outlets.
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Provoid Ground Level Gas Vent Box
Provoid Ground Level Vent Boxes* are an integral part of the Provoid Gas Venting System to act as inlets and outlets.
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Provoid Flat T Periscopic Connector
Provoid Flat T Periscopic Connectors* are used to connect the Provoid Gas Vent System to the Provoid Telescopic Vents.
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Provoid BTB Connectors 900MM Open
Provoid BTB Connectors* (Open) are used to provide a carrier to transmit going through dwarf walls.
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Provoid BTB Connectors 900MM Closed
Provoid BTB Connectors* (Closed) are used to provide a carrier to transmit going through dwarf walls.
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Provoid BTB Connectors 900MM Closed
Provoid Solid Collection Pipe is used to connect the Provoid T Connectors to assist the Provoid Strip Formation System in the dilution of potential gases under the slab.
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Provoid Flat T Gully Connector
Provoid Flat T Gully Connectors are used to connect the Provoid Gas Vent System to the Provoid Gully and Ground Level Gas Vent Box.
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End Caps for Provoid T Connectors
End Caps are used to close off Provoid T Connectors
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Provoid T Connectors
Provoid T Connectors* (closed) are used to connect the Provoid Gas Vent System to the inlets and outlets. Includes 2 x 110mm diameter cap ends.
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Provoid Slotted Collection Pipe
Provoid Slotted Collection Pipe* is used to connect the Provoid T Connectors to assist the Provoid Blanket Formation System in the dilution of potential gases under slab.
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Provoid Gas Venting Bollards
Provoid Gas Venting Bollards* – are an integral part of the Provoid Gas Venting System to act as inlets and outlets.
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Provoid Gas Venting Stacks
Provoid Gas Venting Stacks* – are an integral part of the Provoid Gas Venting System to act as inlets and outlets when high level ventilation is required.
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Provoid Horizontal Adaptor
Provoid Horizontal Adaptor* allows a connection from the Provoid Periscopic Vent to the Provoid T Connectors for ventilation under the slab.
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Provoid Vertical Adaptor
Provoid Vertical Adaptors* are 1m long sleeve to vertically extend the Provoid Periscopic Vent
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Provoid Pericscopic Vent Including Air Brick (Terrecota)
Provoid Periscopic Vents* are an integral part of the Provoid Gas Venting System to act as inlets and outlets.
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Radon Sump Unit
Radon is a radioactive gas.The Protech Radon Sump Unit provides a permanent extraction point under the ground floor, creating a low pressure area under the building.
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There are many potential weak spots to consider when installing a gas protection system. Maintaining a continuous gas tight seal is vital in ensuring that the system performs as it was designed to. Read our article to learn the correct way to deal with corner sections, pipe penetrations & stanchion details.
