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EXTERNAL ENVELOPE
Timeless elegance from Steel Window Fittings
Steel Window Fittings, a member of the Steel Window Association has launched the 1080 and 1090 door levers which are available on all SWF backplates. The elegant ‘lever-lever’ door handle, which can be secured in both horizontal and vertical position, conceals the fi xing screws
and is available with different lever styles. The ironmongery is available in several fi nishes – Satin Chrome, Dark Bronze, Gun Metal, Antique Black, Antique Brass and Oil Rubbed Bronze – and specifi c RAL colours on request, along with matching window furniture. Pictured is the oblong B1090 in Oil Rubbed Bronze.
steel-window-association.co.uk Wraptite®
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www.architectsdatafi
le.co.uk/subscribe converts property developer to benefi ts of external airtightness layer
A property developer has seen immediate benefi ts from using the A. Proctor Group’s external air barrier solution, Wraptite®
. So good were the results of the airtightness testing at the property that the testing company thought their equipment was broken and needed recalibrating! Chris Boyes has been developing timber framed properties on small sites since he was 21. His usual approach has been to create the airtightness line on the internal face of the building structure. This latest development saw him experiment with moving the airtightness line to the external face of the structure, applying Wraptite membrane to the walls and roof. The Scalby Road property features a 140 mm timber stud, fi lled with insulation. To the outside of the stud is a sheathing board, another 50 mm of rigid insulation, and the Wraptite membrane. The walls were then fi nished with cladding or a rendered board on battens. The Wraptite membrane continued from the walls to the pitched roof, which was fi nished in a metal standing seam system. Wrapping the whole building – fi rst in insulation, and then in Wraptite – helped to reduce thermal bridging and deliver a better standard of airtightness.
01250 872 261
proctorgroup.com/products/wraptite
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ADF JUNE 2025
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