Fire Rated Cavity Barriers

They are fitted within the cavity of a building at each floor horizontally and party wall in a verticle position.

Fire rated cavity barriers.

Cavity closers are used to prevent external water vapour and damp from entering the cavity wall. Building regulation requirements necessitate that concealed spaces and cavities in the structure or fabric of a building are sealed or sub divided using cavity barriers to restrict the hidden spread of smoke and flames. To close the cavity at external doors window jambs and sills. Fire rated barriers for eliminating damp and cold bridging around doors windows and sills.

Cavity barriers are pieces of fire stopping material. Fire cavity barriers fire stops create separation within concealed spaces which prevents fire from spreading from one area of a building to another. To provide thermal insulation and prevent cold bridging to provide a dpc at external doors window jambs or sills. The material provides compartmentation.

It is designed to replace more traditional cavity barriers such as mineral wool cavity barriers or cavity socks or timber battens which are prone to poor installation which can render them ineffective in a fire situation. Fire rated cavity barriers maintaining cavity line integrity performance horizontal and vertical sealed spaces often need to incorporate compartments also called cavity barriers. 60 minute fire rated cavity closer. Clause 19 2 of bs 9991 and cites 0 5mm thick steel and 38mm timber as being a suitable cavity barrier materials for the perimeter of windows advice and substantiation should be sought from a fire engineer prior to any decision regarding omitting the 15 min fire.

This means that both the flames and heat cannot be transferred to other compartmental areas. These are used to slow the spread of heat smoke and fire. Cavity closers are also used to seal cavities but unlike cavity barriers cavity closers typically consist of proprietary insulated closer or trim which is not fire resistant. Tenmat cavity fire barrier on a roll is a fire rated solution for timber frame and masonry cavities.