Gas Membrane Lap Tape
A tape suitable for sealing the laps within membrane installations.
Typically used for the jointing of construction membranes including damp proof, radon and gas resistant sheet membranes for combined ground gas and damp proofing applications.
Lap tape which is manufactured using an aluminium/ polythene laminate coated on one surface with an additional layer of self-adhesive polymer modified bitumen.
Features and benefits:
- Incorporates an aluminium foil core to provide resistance to the passage of methane, carbon dioxide and radon gases.
- Adhesion properties to most membrane types and building materials.
- Easy to install, providing a robust method of membrane jointing.
Application:
Typically used for the jointing of construction membranes including damp proof, radon and gas resistant sheet membranes for combined ground gas and damp proofing applications.
| Features | Incorporates an aluminium foil core to provide resistance to the passage of methane, carbon dioxide and radon gases. Has adhesion properties to most membrane types and building materials and is easy to install, providing a robust method of membrane jointing |
| Material | Bitumen modified aluminium/ polythene laminate |
| Shape | Supplied in roll form |
| Size | 1.15 mm thick x 150 mm wide x 10 m long |
| Uniclass 2015 | |
| CAWS | D21/350 Gas-retardant membrane D21/38 Gas-retardant membrane F30/360 Gas resistant damp proof courses/ cavity trays F30/54 Gas resistant dpcs/ cavity trays J40/140 Loose laid plastics or rubber sheet gas retardant damp proofing J40/35 Loose laid plastics or rubber gas retardant damp proofing |
| Product Reference | Gas Membrane Lap Tape |
| Thickness | 1.15 mm |
| Width | 150 mm |
| Strength | 3 N/mm to ASTM D1000 |
| Elongation | 40% to ASTM D1000 |
| Puncture resistance | 250 N to ASTM E154 |
| Adhesion (180° peel) | 2 N/mm to ASTM D1000 |
| Water vapour transmission | <0.1 g/m²/day to ASTM E96 |
| Methane gas permeability | <0.03 ml/m²/day |
| Radon diffusion | 5.0 x 10^-14 m²/s |
| Standard product features | Colour: White/black. Features: Incorporates an aluminium foil core to provide resistance to the passage of methane, carbon dioxide and radon gases. Has adhesion properties to most membrane types and building materials and is easy to install, providing a robust method of membrane jointing. Material: Bitumen modified aluminium/ polythene laminate. Shape: Supplied in roll form. Size: 1.15 mm thick x 150 mm wide x 10 m long. Country of origin: United Kingdom. |