Knauf Insulation’s Perimeter Plus™ Blow-in-Blanket® System has been awarded a British Board of Agrément Certificate (BBA) at this year’s Ecobuild, thanks to its optimised thermal performance, airtightness and compliance with all Building Regulations and standards.

Agrément Certificates are the Gold Standard of product and system approvals, resulting from a rigorous and thorough examination of the product itself as well as its manufacturing process and installation.

Perimeter Plus Blow-in-Blanket System is a specialist high performance loose glass mineral wool insulation designed to be blown into timber frame walls from the inside of a house under construction. Installers gain a visual assurance of a quality installation in every area as the product completely fills all gaps, voids and hard to reach areas around pipes, electrical wires and fixtures. Perimeter Plus also surrounds and compacts around pipework ensuring excellent sound control.

Blow-in-Blanket System (BIBS) is a patented process consisting of loose glass mineral wool blown in between timber studs behind a translucent netting layer. This ensures that the installation is a quick and clean process, as the product does not require adhesives or moisture, meaning that working even in a cluttered internal environment does not present a problem and that there is no risk of corrosion or mould problems further down the line.

Perimeter Plus is perfect for projects looking to maximise credits on the Code for Sustainable Homes as, unlike alternative insulation materials, glass mineral wool can simultaneously enable the acquisition of points on the waste, pollution, health/wellbeing and management sections of the Code in addition to the energy category. Perimeter Plus is made using a high content of recycled glass bottles, and conserves energy once installed, which in turn helps to reduce the fuel demand for the heating and air-conditioning of buildings. The product’s manufacture has a low impact on the environment and is classified as Zero ODP and Zero GWP.

“We are very proud that the Perimeter Plus Blow in Blanket System has been awarded a BBA certificate” explains Alex Cairns, Marketing Manager – Residential New Build at Knauf Insulation. “The Agrément Certificate is only awarded to a product after it has successfully passed a comprehensive assessment involving laboratory testing, on-site installation evaluations and inspections of production. The excellent performance characteristics of Perimeter Plus enable the creation of a thermal and acoustic barrier for timber frame construction and represent a new and improved benchmark in the insulation of timber frame buildings.”

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