SureCav Technical

The SureCav Cavity Wall Spacer system is a new technology for cavity wall construction, designed to save money and installation time.

Instruction sheets for conventional, timber-frame and SIP installations. VIEW   
SureCav Safety Data Sheet. VIEW  
SureCav Technical Data Sheet. VIEW 
NEW SureCav25 working with Retro-fit and Render-systems VIEW 

See how the SureCav system has been used for a variety of applications in the Applications Gallery.

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Acceptance and Approvals

CERT. NO. 04/4154   VIEW 

NHBC The NHBC can accept the use of the SureCav25 product when designed and installed in accordance with SureCav recommendations and the BBA certification. (Also applies to SureCav50.)

 LABC approve of all SureCav products installed according to BBA certificate.

 Premier Guarantee approve SureCav50. The product can be used in new external cavity wall construction in domestic and non-domestic buildings in conjunction with conventional masonry or timber-frame inner leaf. It can be used in any exposure zone up to 12m high. It must be installed in accordance with the BBA certificate.

SureCav Limited has made additional files available for download here.

Calculations SureCav Limited has made available a copy of the above structural engineering calculations for free download.  Call us on 01963 34660 if you require more information.
SureCav25 details
SureCav25 details SureCav25 NEW PRODUCT - Order NOW online and through all builders merchants! BBA approved and accepted by LABC and NHBC. Read the instruction manual here  Description SureCav25 is a 25mm deep version of the popular SureCav50 Cavity Spacer Backing Board. It is a moulded,...
Additional ties
Additional ties Additional wall ties adjacent to door frame or reveal This procedure will prevent slots having to be made in the SureCav sheet on each course of block work when building away from a doorway or window reveal. It is recommended that an additional wall tie is included within 225mm of the...
Helical ties
Helical ties Helical ties for random stonework or flint Helical ties can be used at any position to add strength to a wall when using random stonework or flint. This is found to be very useful for areas between standard wall ties . Always ensure that the helical tie is inserted through the flat...
Trim to Bridging Piece
Trim to Bridging Piece to Trim a SureCav sheet to a cavity tray bridging piece: -   Trim the sheet as close as possible the bridging piece of the cavity tray to maintain a moisture free cavity. In some cases, cutting through a pod will be unavoidable but there is still protection given by the back of...
Cavity Tray
Cavity Tray Install cavity tray at natural stone/block continuation to outer leaf Where the natural stone lower part of the outer leaf continues with an upper contrast of block and render (or other finish), a cavity tray should be installed at the head of the natural stone. Trim the SureCav sheet...
Cutting slot
Cutting slot Installing an Air Vent In Traditional Construction (If required by local authority) Cut a slot in the SureCav sheet 10mm wide and 65mm high to match the profile of the ventilator. If the intended slot does not coincide with the edge of the SureCav sheet then simply drill a 10mm dia....
Trim to Lintel
Trim to Lintel Trimming SureCav to meet a lintel Block: Fit the lintel and ensure that a tray or DPC is installed before construction continues. The SureCavpanel is trimmed to meet the tray, with the insulation board also tightly trimmed to the tray to maximise its effectiveness. Timber frame: Tuck...
In a Gable-end Parapet
In a Gable-end Parapet Install SureCav in a gable end parapet with pitched roof Trim the SureCav panel to the cavity closer. Install air vents in the outer leaf, ensuring the vent is cut through the flat area of the SureCav panel and not through the pod. The parapet up-stand shown in the attached file  lends...