This document is available as part of the Construction Information Service. The Construction Information Service brings together a comprehensive collection of essential technical documents from a wide range of publishers in one online package. Covering all aspects of building, engineering, design and construction, it provides its users with a single source for all their technical information needs. Contact us today to find out how to become a subscriber to this indispensable service.

Xtratherm Ltd. Xtratherm Xtroliner (XO). Xtratherm partial fill cavity board (XO/CW). Product sheet 2

Certificate 12/4956

Xtratherm Ltd. Xtratherm Xtroliner (XO). Xtratherm partial fill cavity board (XO/CW). Product sheet 2

Document Status



Core Supplement




Relates to Xtratherm partial fill cavity board (XO/CW), comprising rigid polyisocyanurate foam boards with a composite foil-facing on both sides to be used as a partial fill thermal insulation in external masonry cavity walls up to 25 m in height in new domestic and non-domestic buildings.


Date of 1st issue: 5th December 2012.


Publisher History

The British Board of Agrément have been providing authoritative and independent information on the performance of building products for over 40 years. The certificates they produce contain data on durability, installation and compliance with Building Regulations.



NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.


IHS is a leading global source of critical information and insight for customers in a broad range of industries. Our customer product and service solutions span four major areas of information: energy, product lifecycle management, environmental and security. By focusing on our customers first, we deliver data and expertise that enable innovative and successful decision-making. Customers range from governments and multinational companies to smaller companies and technical professionals in more than 180 countries. IHS has been in business since 1959 and employs more than 3,500 people in 35 locations around the world.

Request a quote

The Construction Information Service (CIS) gives subscribers 'the information advantage' in today's competitive market.

To request a quote, complete the form below, selecting your supplements of interest.

  • Core
  • Building
  • Construction Management
  • Mechanical and Electrical
  • Planning and Development
  • Civil and Structural

First name:
Email address: