ROOFING; SMOKE & FIRE PROTECTION 45 Workwear stretches into your comfort zone

Recognised the World over for its comprehensive range of comfortably fitting, stylish and practical workwear, F Engel build further on their reputation by introducing a collection of slim-fit, stretchable work trousers which allow wearers to be especially

comfortable in any work situation – and look and feel smart at the same time. Called ‘X-treme’, the trousers are made from 65 per cent polyester and 35 per cent cotton incorporating a specially developed mechanical stretch factor; they are available in various choices both with and without useful hanging pockets. All Engel garments are available from The Workwear Trade Centre, Milton Keyne and Anchor Safety, Ipswich.

07933 150197 Air-open underlay tops performance ratings

Variable performance of many vapour permeable underlays ultimately prompted the NHBC and BSI to require supporting high level ventilation for such products. For roofs needing the highest standard of ventilation performance during a building’s critical drying out period to

prevent condensation forming in the roofspace, Klober’s BBA and IAB-approved ‘air-open’ Permo® air offers not just an exceptional level of breathability, with a water vapour transmission sd-Value of 2736 g/m2


but a water vapour resistance which has been independently confirmed to be as low as 0.03 MNs/g. This has resulted in its specification for many complex roof designs as well as historic and commercial buildings.

01332 813050 Re-shaping the UK housebuilding industry

Structural timber technology addresses many government concerns associated with the public procure- ment of housing. These include the speed of construction, environmental impact, energy efficiency and cost. For example, Norbord’s own oriented strand board, SterlingOSB, one of the

most widely-used components of UK timber frame systems. SterlingOSB is a sustainable, low-energy product with excellent physical performance characteristics. OSB is an essential component of all timber framed panel systems and a major contributor to their growing popularity. Cavity Barriers protect against fire spread

According to Document B of the UK Building Regulations fire barriers must be installed in cavity areas that are vulnerable to the spread of fire. Using the correct passive fire cavity protection system within a building is crucial, in the event of a fire, intumescent fire barriers

activate and seal holes, penetrations and cavities, preventing the spread of fire and smoke, thereby fulfilling UK regulations. Standards and Regulations also stipulate that two storey buildings and above require cavity barriers to stop fire from spreading through walls, floors and cavities. The Envirograf® Cavity Barrier range fully satisfies the requirements stated in Document B of the Building Regulations.


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