Type R - Specific Size

Rigid General Purpose Cavity Closer System

Type R cavity closer has been specifically designed to create a more waterproof cavity closer system, available in widths of 50mm to 300mm in standard and fire rated versions. Type R comprises two rigid PVC extrusions, one of which has a flexible water seal. Once the window is in place the flexible seal sits against the window frame and acts as a secondary water seal.

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This product is suitable for masonry and timber frame walls and offers the following major benefits:

  • Incorporates a Secondary Weather Seal
  • Suitable for First and Second Fix
  • Meets Building Regulations Minimal Thermal Resistance

Type R has been independently tested and certified to the latest Industry Standards, including BDA Kiwa certificate of Agrement.

At YBS Insulation we pride ourselves on providing the highest level of support to our customers, and we achieve this via product specification, project support, U-value or condensation risk calculations.

Contact us today to discuss the different profile options available with Type R and which would suit your requirements best.

Type R Profiles

50 – 300mm Width (Standard)


50 – 300mm Width (Check Reveal)