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Type E Straight Cavitray Insert into an Existing Wall - 450mm Long

Product Code:
E 450 P
Est. Delivery: 3-5 Working Days
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£6.24 Incl. VAT
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The Type E is a preformed DPC cavitray which is inserted into an existing cavity wall. The Type E requires only one course of bricks to be disturbed, with just a few bricks removed at any time. The self-contained Type E cavitrays are the length of two bricks, and clip together, so long runs are easily and quickly created. Preformed angles cater for corners and piers. Each unit has stand-alone discharge via a weep. Suitable for all popular cavity widths because the cavity upstand of the Type E is hinged and adjusts to always suit the ‘as-found’ cavity width.

Cavitray for insertion into an existing wall.


Length: 450mm.
Widths accommodated: 50mm to 140mm.
Thermal transmission: 0.15 to 0.17.
Material: polypropylene DPC.
Colour: black.
ODP: zero.


To prevent damp penetrating an original outside wall that has become an inside wall by virtue of an extension being built. To re-establish damp control measures where an original DPC has failed.


  • Brick-sized cavitrays permit progressive insertion.
  • Anticapil interlocking to form long runs.
  • Cavity widths compatible - upstand adjusts to suit.
  • Unobstructed cavity compartment area with stand-alone discharge.
  • Easy compliance with building regulations.

There are no product specifications to show.

Questions & Answers


Can this be used at DPC height on a ground floor?


Yes it can as long as its above the DPC


Is this product suitable for a retro fit in a coursed stone wall?


Yes it should be suitable.


Do I need to buy the drip vents with this product?


Yes you would also use weep vents with these products.

Have a question about this product?


5 / 5 3 reviews
Sandy Carter
31st August 2021
As described
10th September 2020
well made and seems to do the job.
philip sandham
23rd August 2020
Excellent product eady to use
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Type E Straight Cavitray Insert into an Existing Wall - 450mm Long

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