Materials such as the roofing material vents and their location and the type of underlayment are also typically specified on the roof plan as seen in figure 20 3.
Roof equipment plan symbols.
Aa a 6 building section a a can be seen on drawing no.
Plan symbols 2 a 4 wall section no.
Main object line hidden or invisible line indicates center line 3 3 4 dimension lines extension lines symbol indicates center line indicates wall suface n.
Dn thru roof conductor flat roof mounted or mechanical f p parapet mounted air terminal counterpoise conductor down conductor bonding conductor ground terminal air termination device pipe clamp for plumbing vent thru roof.
3 l 5 detail section no.
Roof plans a roof plan is used to show the shape of the roof.
Plan for each floor roof surrounding site and other area with electrical installations.
Code required seals at all fire rated wall ceiling roof and floor.
On a roof plan the symbol preceded by the letters dn is called a slope indicator.
F f h f c e fs ts f rt r r f ddc vfd c st ss gnd g cii ci f eq l c j a 2 electrical symbol legendgeneral notes.
B site plan s showing incoming utility services and.
Remembering all of this shorthand can be tricky especially when this is added to the challenge of reading all the symbols and deciphering the conventions that might be.
A scale of 1 8 1 0.
Reference symbols abbreviations plumbing piping symbols t plumbing general notes key note designation revision designation gate valve point of connection of new to existing enlarged plan designation north arrow equipment designation condensate riser diagram reference.
Symbols for equipment and systems not covered by.
Roof plans are typically drawn at a scale smaller than the scale used for the floor plan.
2 can be seen on drawing no.
A frame roof an a frame structure uses rafters to form its supporting walls.
Draft roof plans 5 1 indicate the dimensions of the roof plan based on the floor plan 5 2 draw roof plans according to drafting standards 5 3 use standard architectural symbols in drafting roof plans 5 4 layout drawings according to sheet contents 5 5 draw framing details of roof plan according to architectural drafting standards tle icttd9al.
Open tank basic symbol open tank tank with fixed roof with draw off sump tank with floating roof with roof drain covered tank sealed tank clarifier or settling tank storage sphere gas holder basic symbol for all types a 6appendix a graphical symbols for piping systems and plant.