BigBlok
Application

Compatible with all PVC-U, wood, steel and composite window and door types.

Description

Recycled PVC-U cavity closer designed to meet the demand for closures in buildings with cavities 125–300 mm wide. Comprises a solid block of insulation (CFC/ HCFC free) making it ideal for low U-valve construction. A simple slot-together system means you can quickly and cost-effectively close off windows and door openings of any size in any type of wall.

Prevents thermal bridging and provides a brick-laying template, compatible with all PVC-U, wood, steel and composite window and door types. Offers a Global Warming Potential (GWP) of less than five and an Ozone Depleting Potential (ODP) of zero, meeting the requirements for the Code For Sustainable Homes.

Features and benefits:

  • Suitable for low U-valve construction.
  • Wide range of cavity sizes.
  • Fully approved by the BBA and NHBC.

Application:

Compatible with all PVC-U, wood, steel and composite window and door types.

General information

Features

Quick and easy to fabricate and fit, universal design

Material

Recycled PVC-U with insulated core

Size

6000 mm in length

Uniclass 2015

Pr_35_90_50_64 Plastics cavity closersPrimary

CAWS

F30/18 Cavity closers

F30/180 Cavity closers

Specification data - Plastics cavity closers

Product Reference

BigBlok

Third-party certification

Fully approved by the BBA

Accessories

BBMOU

BigBlok corner.

BBSFIL

Corner fillet.

BBTIE

Brick ties.

BOOT14

Brace boot.

CAVBRBOX

Bracing bar.

CORBRA

Corner brace.

To fit cavity width

125 mm

140 mm

150 mm

170 mm

200 mm

250 mm

300 mm

Standard product features

Colour:

White.

Features:

Quick and easy to fabricate and fit, universal design.

Material:

Recycled PVC-U with insulated core.

Size:

6000 mm in length.

Recycled content:

100%.

Recyclability:

PVC-U element recyclable.

Country of origin:

UK.

Environmental information

Recyclability

PVC-U element recyclable

Recycled content

100%

Literature
Third party certifications
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