Metal straps used to secure windows to openings.
Attached air tightness membrane ‘skirt’ to outside of frame allowing 300mm excess.
Membrane attached using agreed method of timber strip in mortar groove and double sided tape. This proved finicky and the strip split and not big enough section to take screws. Adapted method and eliminated use of timber strips.
Used double sided bitumen tape to attach to frame then additional layer of metallic tape to close off open edge. Pleats incorporated, two at each corner, to allow manipulation of membrane around corner reveals of openings in order to attach to wall membrane.
All rear windows fitted.
Some windows very tight for the actual openings. Some are little more generous. Would have preferred a more experienced person to measure up rather than a building surveyor.
Heads of windows will need to be foamed, insulated and cloaked off at soldier arches.
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