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Cavity Closers

Benefits

  • Prevent water penetration The use of a cavity closer will prevent the ingress of water around a window or door.
  • Prevent heat loss and cold penetration Thermal loss can result in problems of condensation, staining and mould growth at the reveals of these openings. Prolonged exposure to this will lead to a deterioration of the internal plaster and paint work.
  • Create a fire barrier A fire rated cavity closer can prevent the spread of fire.

Installation

Fitting a cavity closer during brick work
  • Make an accurate (timber) template the same size as the structural opening.
  • Cut cavity closer to the size of the sill and jamb.
  • Tack or nail the cavity closer to the window or the timber former along the sill and jamb.
  • Remove the relevant flanges on the run on so you are left only with the cavity width portion.
  • Position the window frame with 30mm overlap of cavity closer from the inside of the outer skin.
  • Position the window with the cavity closer attached onto the sill in the required position.
  • Ensure the timber window is level and upright then prop up in position.
  • Build up the two wall skins ensuring that they butt up tight to the closer.
  • Build inner skin up to the inside flange of the cavity closer and butt to the outer skin.
Fitting a cavity closers posts brick work
  • Cut cavity closer to cavity size.
  • Push fit the cavity closer into the opening ensuring that the exposed insulation points towards the internal skin.
  • Push fit the sill section in place, ensuring that the cavity closer butts up to the jambs.
  • Use galvanised or stainless steel nails to fix the flange into masonry.

CHOOSE MANUFACTURERS or scroll down to see products (show)

Brand: YBS Insulation Model and Size: 2.5m
Delivery Time: 1 - 2 days
YBS Cavi-Mate EPS Cavity Closer is a new, robust window installation system ideal for the new build market. Manufactured from high quality PVC-U, it is a window former, locator and cavity closer, which enables Contractors to fit window frames quickly and easily by building around the sub-frame then ..
Guide Price: £10.85
£13.02 inc VAT
Brand: Kingspan Model and Size: 100x2400mm
Delivery Time: 3 - 5 days
100mm Kingspan Kooltherm Cavity Closer is a PVCU extrusion with a rigid thermoset insulation core, which provides a simple and efficient method of closing cavities around openings in cavity walls. It is suitable for use with timber, metal or PVC window frames and can also be supplied to order in cur..
Guide Price: £198.93
£238.72 inc VAT
26mm Reveal Clip for Kingspan Thermabate Cavity Closer 1m length
Guide Price
Brand: Kingspan Model and Size: revealclip
Delivery Time: 2 - 3 working days
26mm Reveal Clip to help construction of check reveals and gives additional protection to the frame assembly.Supplied in one meter lengths. Colour coded to white.CERTIFICATIONKingspan Thermabate is manufactured to the highest standards under a management system certified to ISO 9001: 2015 (Quality m..
Brand: Kingspan Model and Size: thermabate
Delivery Time: 3 - 5 days
85mm Thermabate Cavity Closer, an innovative solution designed to maintain continuous insulation around window and door openings. Crafted with a rigid thermoset urethane insulation core, this cavity closer box section ensures optimal thermal performance and condensation control. It adapts seamlessly..
£207.30
£248.76 inc VAT
Flange Extension Clip for Kingspan Thermabate Cavity Closer 1m length
Guide Price
Brand: Kingspan Model and Size: extensionclip
Delivery Time: 2 - 3 working days
Flange Extension Clip for connecting Kingspan Thermabate to extend the width of the fixing flange. It enables positive fixing of frame over suspect masonry. Supplied in one meter lengths. Colour coded to white.CERTIFICATIONKingspan Thermabate is manufactured to the highest standards under a manageme..
Brand: Kingspan Model and Size: jointingclip
Delivery Time: 2 - 3 working days
Jointing Clip connects two sections backtoback along their length to suit cavity widths of up to 300 mm in circumstances where a single section, Kingspan Kooltherm Thermabate Cavity Closer or Kingspan Kooltherm Cavity Closer will not suffice. It should be installed in 100 mm lengths at 300 mm centre..
Brand: Kingspan Model and Size: jointingstrip
Delivery Time: 3 - 5 days
Jointing Strip that aligns and connects two abutting cavity closer sections along their cross–sectional plane. It allows for opening sizes greater than 2.4 metres, and for the reduction of wastage through the use of off–cuts. Limited to one butt joint per side of the opening.. Colour coded to Grey.C..
Standard Flange Clip for Kingspan Thermabate Cavity Closer 1m length
Guide Price
Brand: Kingspan Model and Size: flangeclip
Delivery Time: 2 - 3 working days
Standard Flange Clip for use with Kingspan Thermabate Cavity Closers and for use as a weather check, for fixing closer sections to window frames, and for retaining partial fill insulation batts in the cavity. Supplied in one meter lengths. Colour coded to green.CERTIFICATIONKingspan Thermabate is ma..
Guide Price: £2.71
£3.25 inc VAT
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