Cavity Closer
Cavalok is the only manufacturer of BBA-accredited cavity closer systemsmade from 100% post-consumer recycled PVC-u. The Cavalok product rangeis widely used for brick/block, steel and timber frame buildings in thenew build residential and commercial sectors.
Cavity closers have become a critical and compulsory building componentused in many new-build projects to create door and window openings whilesealing the cavities and providing a thermal break. The frame formingcloser product enables faster and easier installation of windows as wellas improved thermal efficiency for the whole building.
Cavalok closers were used to create and close the openings on a varietyof wall constructions ranging from 140mm to 175mm cavities with 90mm ofinsulation. A four-sided closer solution was selected for the project toaccommodate a split lintel and provide a ring of continuous insulationaround the opening. Cavalok’s comprehensive range of closers can closecavities from 50mm up to 300mm.
The entire Cavalok cavity closer range is manufactured from 100%post-consumer recycled PVC-u, often from old windows. The range includesthe Big Blok system for cavities of 125mm and above. There is also aCavalok system for 50-100mm cavities and a retrofit Trade closer productfor installing after the wall is built.
Cavalok’s cavity closers integrate closing of the cavity and DPC intoone simple operation. This provides energy saving and enhanced carbondioxide emission by ensuring a consistent thermal break and secureinsulation around the opening.
