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Surveying - Replacement Window & Doorsets
General : Surveyor
Measurement of an opening: Three measurements of width and height
should be taken across the opening, along with the squareness of the aperture
by taking diagonal measurements. The smallest measurement of height and
width will determine the manufacturing size.
Measurement of Flat Windows & Doorsets
Horizontal Dim 1
1 2 3
mi mi mi
D D D
Horizontal Dim 2 l l la a ac
i c ct it itr r r
e e eV V V
Horizontal Dim 3
Brickwork Brickwork
Step 1: Take 3no. Horizontal Dimensions Step 2: Take 3no. Vertical Dimensions
D1 ia
im go n
al D an l o Di
magi
D 2
Brickwork
Step 3: Take 2no. Diagonal Dimensions
The need for any sub-cill should be determined. The size of the sub-cill
overhang should be such that it is an overhang of at least 25mm from the face
of the brickwork to the inner edge of the cill overhang. The surveyor will
determine the method of fixing, check requirements for cill horns and how any
“making good” is to be carried out.
The difference between internal and external reveal sizes should be determined
and checks made to the operation of the opening light to ensure it is not
impeded by plaster, render or tiles etc.
Issue: 2 (January 2008) 9
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