TPE Through Wall Outlets (Perforated Flange)

TPE Through Wall Outlets (Perforated Flange)

Wallbarn Ltd

Drainage outlet shape for through walls manufactured from TPE compound for through for bonding to bitumen based waterproofing membranes in a sandwich technique. Ideal for hot melt and felt.

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+44 (0)20 8916 2222

Tough and durable pre-cast corner fittings for drainage holes on roofs, balconies and terraces. The outlet pipe is round and slightly recessed, with a small drop form the horizontal border flap to encourage the water to flow into the pipe immediately. It is also slightly angled to create a fall, encouraging faster flow of the water down the pipe.

They can be fitted to vertical downpipes at the edge of the retaining wall, or on a horizontal plane through the upstand or wall to then connect to the external downpipe. The corner fitting includes a flange which is sandwiched between two layers of waterproofing membrane. It is perforated with a series of holes around the profile to allow the membrane underneath to pass through the holes and give a secure bond when the second layer of membrane is installed above it. There is a range of size options to accommodate varying pipe widths.

General information




UV resistant, tough material, can be fitted on multiple outlets






50 x 43 x 44 x 500 x 110 x 140 x 260 mm

Specification data

Product Reference

TPE Corner Fittings

Outlet pipe (diameter)

50 mm

63 mm

75 mm

80 mm

90 mm

100 mm

110 mm

125 mm


Not required


To suit drainage outlet

Standard product features


Thermoplastic elastomer (TPE), a compound of ethylene-propylene diene monomer (EPDM) and polypropylene.

Outlet pipe length:

500 mm.

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