Verified by manufacturer 2 months ago
EPD
Certificate type
TPO single ply membrane for the internal waterproofing and lining of water tanks.
This hot air welded membrane can be used to line water tanks, reservoirs, artificial ponds and lakes, fishponds and swimming pools.
The Koster TPO Aqua membrane offers excellent application characteristics including flexibility and weld-ability and does not contain any harmful migratory plasticisers or PVC.
Lining of water tanks using the Koster TPO Aqua membrane is the safe, clean, and reliable way of ensuring water is permanently contained within the structure. The Koster TPO Aqua doesn’t require intensive preparation prior to installation, thus reducing additional labour and material costs compared to a liquid application. The membrane carries European drinking water certification for situations when potable water is intended to be stored.
Following a straightforward preparation:
"All substrates should be designed to resist the positive pressures of the water being contained inside however, application onto reinforced concrete, precast concrete, block, brick, metal and even timber is possible. All application surfaces should be smooth and free of harsh edges, depressions, or any other abnormalities that could puncture the membrane once installed. Cracks (non-structural), old paints/coatings and membranes are admissible."
A 500 g/sqm geotextile matting is loosely placed onto the tank floor, this ensures any undulations in the slab won't stress the installed membrane, followed by overlaying with the desired Koster TPO Aqua. Mechanical fasteners are installed around the room perimeter securing the membrane in place.
Further rolls of Koster TPO Aqua are then applied to the walls, either horizontally or vertically and held in place with suitable membrane washers and screws. Overlaps between sheets to be 110 mm. At the uppermost point on the tank walls, a strip of Koster TPO Laminate metal is to be mechanically fixed thus allowing a suitable welded termination for the membrane.
All overlaps, terminations and detailing should be fully hot air welded as per the guidelines in the Koster TPO Installation guide. Approved contractor installation only. Please contact the Koster technical team for recommended contractors.
Features and benefits:
All projects are detailed by the Koster Technical team. For design advice or further information, please contact technical@kosteruk.com.
Color | Grey |
Finish | Smooth |
Material | Thermoplastic elastomer (TPE) |
Shape | Rectangle Other |
Length | 20000 mm |
Width | 1500 mm |
Height | 1.5 mm |
Warranty description | Ten year |
Uniclass | |
CAWS | J40/297 Waterproofing/ damp-proofing/ gas-retardant membrane J44/110 Geomembrane lining |
Product range |
Substrate lining sheets | None.500 g/sqm geotextile matting. |
Water retention sheets | |
Material | Thermoplastic polyolefin elastomer (TPE). |
Jointing | Hot air welded at all overlaps and details, as per Koster approved guidelines. |
Surface protection sheets | Koster TPO Maintenance Walkway membrane. |
Top edge support | |
Method | Mechanically fastened. |
Fixings and fasteners | TPO laminated metal, mechanically fastened every 20 cm on vertical wall termination and 25 cm for horizontal top edge termination. |
Contains Red List materials | No |
Country of material origin | Germany |
Country of product manufacture | Germany |
Recyclability | Yes |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 100 % |
Installation Instructions for the Koster TPO Single Ply Membrane
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