NBS Source
I'm a manufacturer

Cavalok BigBlok Cavity Closer - Recycled PVC-U Cavity Closer

Verified by manufacturer 10 days ago

Eurocell plc Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

Recycled PVC-U cavity closer for larger cavities

Jump to:
+44 (0)1773 842100 Website

Application

  • Compatible with all PVC-U, wood, steel and composite window and door types
  • Essential component for low U-value construction

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. With larger cavities being specified across new-build properties in order to meet stringent thermal efficiency regulations, BigBlok meets the demand for a simple slot-together system that quickly and cost-effectively closes off window and door openings of any size in any type of wall.


Features and benefits:

  • Suitable for low U-valve construction
  • Wide range of cavity sizes
  • Fully approved by the BBA and NHBC
  • Offers a Global Warming Potential (GWP) of less than five and an Ozone Depleting Potential (ODP) of zero
  • Creates rigid bricklaying template and seals walls with cavities up to 300 mm, helping in meeting stringent thermal efficiency regulations
  • Manufactured from 100% post-consumer recycled PVC-U – delivering a sustainable solution.
  • Closes opening with continuous CFC/HCFC-free insulation – reducing U-values to prevent thermal bridging
  • Quick and easy to fabricate and fit, with straight cuts and slot-together fitting
  • Compatible with PVC-U, timber, steel windows and composite doors
  • Tough and robust to withstand demanding site conditions
  • Extensive range of fitting options to suit every building project

General information

Color

White

Material

PVC-U

Guidance for specification option:

Recycled PVC-U with insulated core.

Length

Bespoke

Width

Bespoke

Uniclass

Pr_35_90_50_64 Plastics cavity closersPrimary

CAWS

F30/18 Cavity closers

F30/180 Cavity closers

Product range

Cavity Closers

Specification data - Plastics cavity closers

Third-party certification

British Board of Agrément (BBA) certified.
To Part L of Building Regulations, Accredited Construction Details.

Accessories

Not required.

BigBlok corner - BBMOU.

Corner fillet - BBSFIL.

Brick ties - BBTIE.

Brace boot - BOOT14.

Bracing bar - CAVBRBOX.

Corner brace - CORBRA.

Quick fit window retainer.

Thermal barrier.

Cavalok corners.

To fit cavity width

125 mm.

140 mm.

150 mm.

170 mm.

200 mm.

250 mm.

300 mm.

Sustainability data

Country of material origin

United Kingdom

Material

PVC-U

Guidance for specification option:

Recycled PVC-U with insulated core.

Recyclability

-

Manufacturer guidance

PVC-U element recyclable.

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

100 %

Guidance for specification option:

%.

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

BigBlok BBA Certificate 00/3673