Visqueen Polyethylene DPC

The trusted, budget-friendly solution for housebuilding, garages and extensions. Visqueen’s black polyethylene DPC is BBA-approved, easy to handle on site and compatible with all cement mortars. Whether you’re setting cill courses, building retaining walls or forming cavity trays in low-rise housing, this roll ticks every box while keeping costs down.

Order before 12:00 and spend £200 ex-VAT for free next-working-day delivery. Need a take-off or BBA certificate? Phone 0118 922 7941 and we’ll email it over.

Size Table

Width × LengthLinkTypical use
100 mm × 30 mAddStandard brick leaf DPC
150 mm × 30 mAddInner-leaf starter course
225 mm × 30 mAddCavity trays over lintels
337 mm × 30 mAddParapet or step-down trays
450 mm × 30 mAddWide retaining walls
600 mm × 30 mAddTanking starters / lift pits
900 mm × 30 mAddFull-height basement

Why builders pick Visqueen Polyethylene DPC

  • BBA Certificate 94/3009 – complies with BS 6515 for use as a damp course in masonry walls.

  • Flexible at low temperature – won’t crack on frosty mornings.

  • Excellent puncture & tear resistance – survives scaffold lifts and brick arrises.

  • UV-stabilised black film – short-term exposure won’t embrittle the sheet.

  • Budget friendly – ideal when non-combustibility isn’t required (for façades under 18 m).

Pair with Visqueen Double-Sided Butyl Tape for watertight 100 mm laps.

Installation essentials

  1. Support large widths (>450 mm) with Fixing Strip at 450 mm centres.

  2. Lap joints 100 mm; bond with butyl tape where gas-tightness is required.

  3. Protect from UV – close masonry the same day or cover with HD protection sheet.

  4. Insert full-height weep vents at 450 mm centres above every cavity tray.

  5. For buildings above 18 m upgrade to Visqueen Non-Combustible DPC to meet Regulation 7(2).

Compliance snapshot

RequirementPerformance
BS 6515Pass – polyethylene DPC
BBACert. 94/3009 (damp protection)
Radon permeability<1 × 10⁻¹² m²/s (when taped)
Service lifeMatches wall design life when embedded

Frequently asked questions

Can I torch-bond this DPC?
No—heat will melt PE. Use butyl tape or bed joints only.
Is it suitable for parapets?
Yes, but support the free edge and protect with coping stones or torch-on membrane.
What mortar class is required?
At least M4 (designation iii 1:1:6) for adequate adhesion and load-spread.
Delivery cut-off & surcharges?
Order before noon, spend £200 ex-VAT; see delivery information for remote-area surcharges.

Add these to finish the job

Need detailing advice or COSHH sheets? Contact us or call 0118 922 7941—Spechunter will chase down every spec so you don’t have to.

Spechunter.co.uk – Chasing down specialist construction specifications since 1988. Fact checked and updated May 2025.

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