Wallbarn TPE Collar (Perforated Flange) - H90mm - D160mm

Product Code RO-TPE-030-380-090-160-Z
Incl. VAT £6.80

Est. delivery: 2-3 Working Days

View delivery options
  • Easy fit
  • Collars will fit around the outside of an HDPE pipe
  • Directs water outwards away from the pipe and hole
  • Completely surrounds the pipe

Wallbarn TPE Collar (Perforated Flange)

TPE Collars are designed to fit outside drain pipes and foul air pipes to ensure a complete waterproof seal on the roof deck.

Collars are fitted to pipework which emerges from the top of the concrete deck. These sorts of pipes include bad odour vents and stand pipes. It is critical that these pipes are completely waterproofed as they emerge from the deck as any water ingress will flow directly into an interior section of the building, such as a bathroom.

Collars will fit around the outside of an HDPE pipe (as opposed to the connectors and outlets which slot into the inside of a standard water pipe) and are secured using a jubilee clip or similar. They are again manufactured with a slightly conical shape, so that they are easier to fit, and also help direct water outwards away from the pipe and hole.

It is essential that the correct size of collar is chosen, as it needs to fit around the outer diameter of the HDPE pipe (which may be measured in Imperial measurements) but it should not be so large that gaps exist between the pip and collar, as this may cause movement.

The idea is that they completely surround the pipe.

The deck should be waterproofed around the pipe as it stands out from the deck, with a first coat or “patch”; and the collar is then fitted over the top whilst the first layer / coat is still tacky.

The membrane will ooze through the holes in the perforated flange. The second coat / layer of waterproofing is installed, with the membrane bonding to itself (in the same way as described for drainage connectors), so that the membrane is bonded under and over the collar, ensuring a complete seal.

The jubilee clip is fixed around the collar at the top end to secure the whole area.


030-380-060-080 030-380-090-100 030-380-090-120 030-380-090-140 030-380-090-160
Wallbarn code Category D1 D2 D3 H
030-380-060-030 30mm 154 32 30 60
030-380-060-040 40mm 154 42 40 60
030-380-060-060 60mm 194 62 60 60
80mm 194 82 80 60
100mm 234 102 100 90
120mm 234 122 120 90
140mm 274 142 140 90
160mm 274 162 160 90

FREE DELIVERY on Roof Windows and Accessories on orders over £50 (Exclusions apply)

All other Delivery Charges are based on weight and location, please add products to your basket to calculate shipping.

A small amount of product lines from particular manufacturers listed below will incur a supplier delivery surcharge.

Next Day Delivery available on orders of stocked items if placed before 2pm

Deliveries will be made between 8am and 6pm. Delivery times apply to weekdays only.

Delivery of Windows to England, Wales, and the majority of Scotland:
Basket Value Price (£)
0-£50 £9.95
Over £50 Free Delivery

Delivery of Windows to the Channel Islands, Scottish Highlands, Northern Ireland, Isle of Man

(postcodes IV, HS, KA27-28, KW, PA20-49, PA60-78, PH17-26, PH30-44, PH49-50, ZE, AB)

Basket Value Price (£)
0-£249 £20
Over £250 £50

It is with regret that we cannot offer a service to these areas for orders over 126kg but please call us on and we will attempt to organise a delivery to your custom if required.

Supplier Delivery Charges

Please note the following supplier delivery surcharges:

Ariel Plastics = £25.00

Britmet Tileform= £35.00

Lead Products(orders under 250kg) = £50.00

Marley Eternit roof tiles (orders under a pallet) = £75.00

Marley Eternit sheeting (exclusions apply) = £50.00

Redland = £100.00

Palram = £25.00

Please phone us on if you are unsure.