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EWWS667B Arc T‐Barrier Timber

This is an assessment of Arc T-Barrier for timber frame construction. Its function is to provide an effective edge seal around the party wall cavity and to provide a complete fire barrier between the two dwellings, both in the vertical cavity and the cavity between the pitched roofs. By creating an...

EWWS667A Arc T‐Barrier Masonry

This is an assessment of Arc T-Barrier System for masonry construction. The system includes barriers for the vertical party wall/external wall junction, the void between the top of the party wall and the roof covering, the void between the felt and tile batten, and the soffit junction. Its function...

EWW128B Darwin Group Modular Building System – Housing

This is an assessment of the Modular Building System for single and two storey housing in detached, semi-detached or terraced format for residential applications in England. It is a factory assembled modular system using steel frame and steel joists forming ground and intermediate floor levels and...

EWS816 Tuff Waterproofing Ltd ‐ TuffStuff GRP Flat Roof System

This is an assessment of TuffStuff GRP Flat Roof System, a wet laid single ply GRP laminate made up of two layers of base coat resin sandwiching a layer glass fibre reinforcing mat. It is applied to a good quality new OSB3 or WBP plywood deck (18/25mm). Profiled GRP edge trims are applied to the...

EW808A Thatch Firewall Membrane System

This is an assessment of the Thatch Firewall Membrane System for use in thatched roofs. The system is for use on existing thatched roofs which cannot take the rigid Thatch Fireboard system. The system comprises Thatch Firewall Membrane (flexible fibre glass woven fabric coated both sides with...

EW811 Darwin Group - Excalibur Building System

This is an assessment of the Excalibur building system for new build applications in the education sector. The pre-engineered building system is component based using a prefabricated steel frame and provides accommodation of up to 4 storeys as standard with no basement. Valid until 4th April 2021...

EWS481 Prefix WARMroof System

This is an assessment of the WARMroof system from Prefix Systems. It is a multi-configurable and structurally robust insulated tiled roof that is an off-site constructed ‘warm roof’ that has been designed and engineered to be structurally sound, energy efficient and aesthetically pleasing, it is...

EWS199B Boulder Developments Superfoil SF40

SF40 is a multilayer foil insulation for use in roofs and cavity walls in new build, renovation and conversion constructions. Valid until 11th August 2022 Please Note: Every care was taken to ensure the information was correct at the time of publication. Any written guidance provided does not...

EW629C FOAMIT 60

The FOAMIT 60 is a recycled glass product to be used as a lightweight aggregate for solid floor structures. It has good thermal properties which add to the overall U-value of the floor build up. Valid until 10th November 2020 Please Note: Every care was taken to ensure the information was correct at...

EW629B FOAMIT 30

The FOAMIT 30 is a recycled glass product to be used as a lightweight aggregate for solid floor structures. It has good thermal properties which add to the overall U-value of the floor build up. Valid until 10th November 2020 Please Note: Every care was taken to ensure the information was correct at...