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Unformatted text preview: exceeding 0.5 ma
not exceeding 3 ma each, deductions and additions shall be made in
following manner: mr
the 4.6 pointing shall by raking or otherwise shall Deductions a) No deduction
shall be made for ends of joists, beams, posts, etc.
and openings not exceeding 0.5 ms each, and no addition shall
be made for reveals, jambs, soffits, sills, etc, of these openings
nor ~for finish around ends of joists, beams, posts, etc.
for openings exceeding
0.5 m* but not exceeding
3 m2 each shall be made as follows and no addition shall be
made for reveals, j,ambs, s&its, sills, etc, of these ‘openings:
1) When both faces of wall are pointed with the same
pointing, deduction shall be made for one face only. type of 2) When two faces of wall are pointed with different types of
pointing or if one face is. plastered and the other pointed,
deduction shall be made in the plaster or pointing on the side
on which the width of. reveals is less than that on the other
side, but no deduction shall be made from plaster or pointing
on the other side.
Where widths of reveals on both faces of
wall are equal, deduction of 50 percent of area of opening
on each face shall be made from areas of plastering and/or
pointing as the case may be.
8 IS:1200( Part XII)- 1976 3) When width of door frame is equal to thickness of’wall or is
of wall, full deduction
opening shall be made from each pointed face of the wall.
4) When only one face is pointed and the other face is not
pointed, full deduction shall be made from pointing if width
of reveal on the pointed side is less than that on unpointed
side, but if widths of the reveals on both sides are equal or
width of reveal on pointed side is more, no deduction shall
be made nor any addition shall be made for reveals, jambs,
soffits, sills, etc.
I 4.6.2 In case of openings of area above 3 mz each, deduction shall
for opening on each face but jambs, soffits and sills shall
measured. nade NOTE- In calculating
shall be excluded.
4.7 Raking-out joints be
be are& of openings, extra width of rebated reveal, if any, shall be measured alternatively included in description of item. in square metres or 4.7.1 Raking-out single detached joint shall be measured separately
4.8 Pointing on honey-comb work shall be described and measured in
square metres on the basis of overall superficial area without deducting
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- Fall '13