Closing Cavity Walls
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Hi James
Wessex estimating item GJ002 Closing Cavities not exceeding 75mm wide:
102.5 Facing Brickwork:
at jambe or end of wall 0.40 lab hours per m
at sill 0.55 lab hours per m
at top of wall 0.30 lab hours per m
As I advised earlier - get the disc from RICS bookshop.
Best regards
Mike Testro
Even though this is non-technical answer,
For trying to help you, i have just found these typical sections about insulation of cavity walls?
http://www.plymouthfoam.com/building_products/duraspec/images/cavitygen…
http://www.achfoam.com/ACH/media/images/Sheathing/Cavity%20Wall2.jpg
i believe the question is not answerable without any details (in an engineers point of view)