WORKING DRAWINGS HANDBOOK, Fourth Edition

The general arrangement drawing

ceiling plan the implications must be considered of any

suspended ceilings (which CI/SfB Table 1 would have us

code (35)) and of the lighting and air conditioning

layouts, both of which will normally have a bearing on

the ceilings.

Let us be clear about what we are trying to achieve.

There will be a general arrangement plan of air-

conditioning trunking—no doubt prepared by the M & E

engineer—and coded (assuming other consultants are

working within the CI/SfB format), G(57). There will also

be a lighting layout, a sprinkler layout, etc. and each will

also be a general arrangement drawing of the

appropriate coded reference. Should a drawing be

produced to consolidate these various services, to

ensure that they can co-exist satisfactorily in the same

ceiling void, then it might be thought to be an assembly

drawing and sensibly coded A(5-), since the services as

a whole are its primary concern. But at the end of the

day the architect’s drawing must be of the ceiling per se,

so that the precise positioning of diffusers, lighting

fittings, sprinkler heads, etc. may be visually acceptable

and may be taken to represent the ‘picture on the lid’ for

all concerned with the construction of it. This is in every

2.6 Internal elevations on a room-by-room basis is the most flexible method for conveying information on finishes (cont.)