Added Eaves Insulator to your list of saved products. View saved products

U-Barrier

ARC U-Barrier providing firestopping at the roof of a party wall cavity, on the spandrel.
Fire product

ARC U-Barrier

  • Enhances fire protection at the junction between the spandrel panel and roof
  • Easy to install before the spandrel panel is fitted
  • Use in conjunction with ARC Spandrel Barrier to provide complete fire stopping around the spandrel panel
  • Complies with building regulations and NHBC 7.2.16

Application

ARC U-Barrier is compressed between the top of the spandrel panel and underside of the roof covering, creating a fire and thermal break.

NHBC 7.2.16 recommends a 25mm gap between the separating wall and the top of adjacent roof trusses, which should be filled with mineral wool. ARC U-Barrier satisfies this recommendation.

Key stats

Insulation Rockfibre mineral wool
Thermal conductivity 0.037W/mK

Frequently asked questions about this product

Is this product fire rated?

ARC U-Barrier is manufactured using rockfibre mineral wool which achieves a fire classification of Euroclass A1 as defined in BS EN 13501-1, and complies with building regulations for fire stopping at the pitched roof party wall detail, as well as NHBC 7.2.16.

Can U-Barrier be mechanically fixed?

Yes, the polythene flanges can be used to mechanically fix, typically a staple, to the spandrel panel.

Other products you may be interested in

The ARC spandrel barrier providing fire stopping at the party wall

Fire product

Spandrel Barrier

ARC Spandrel Barrier seals the top of the party wall cavity, allowing a zero U-value to be achieved when used in conjunction with ARC T-Barrier vertically.

Product details
ARC T-Barrier masonry providing fire stopping at the party wall of masonry constructions.

Fire product

T-Barrier for Masonry Construction

The ARC T-Barrier is designed to provide a fire, thermal and acoustic break at the junction between the external cavity and the party wall cavity.

Product details
ARC T barrier Pitched Roof - fire stopping at the roof of a party wall cavity of masonry constructions.

Fire product

T-Barrier for Pitched Roof

The ARC T-Barrier Pitched Roof is designed to provide a fire, thermal and acoustic barrier between the top of the party wall blockwork and the underslaters felt.

Product details
A render of the Eaves Insulator sitting at the eaves junction. It features a black tray with ventilation ridges attached to a green bag of glass fibre insulation. The product is in-situ.

Cold bridging product

Eaves Insulator

The requirement for ARC Eaves Insulator elevated from the problem of heat loss through the roof membrane at the junction between the pitched roof and the top of the cavity wall.

Product details