Do not have gutters or level areas between drains.
Roof dains division of spec.
Follow recommendations of national roofing contractors association roofing manual for design criteria.
Ensure that roof slopes high and low points are shown on the roof plan including crickets.
Castin place drai ns promenade drains expansion joints overflow drains irma roofs.
These will drain to somewhere near the center of the roof and down through the building to underground storm mains or a detention pond.
Ensure that drains are located at low points.
22 0000 plumbing.
Csi divisions division 22 22 14 26 13 roof drains manufacturers of roof drains browse companies that make roof drains and view and download their free cad details revit bim files specifications and other content relating to roof drains as well as other product information formated for the architectural community.
Ensure that correct geometry is shown for slope.
All sections are in ms word format.
07 7140 roof expansion joints.
Please note there are major changes in division 01 in this edition.
The roof is sloped towards the drain through either tapered insulation or through joist modifications below the roofline.
2 4 roof drains spec editor.
Desired rate of drainage 6.
Minimum of 1 48 1 4 inch per foot.
To select the proper roof drain the following information must be known.
Roof materials are specified in division 07.
Roof load requirement 7.
07 7000 roof and wall specialties.
02 01 16 section 07 22 00 roof and deck insulation spec writer notes.
Delete text between not applicable to project.
07 7120 gutters and downspouts.
Comply with ashrae standard 90 1.
Safety load requirement 8.
22 1435 roof drains.
Ensure positive slope to drains occurs.
07 6200 flashings copings and fascias.
07 7230 roof hatches and smoke.
Edit remaining text to suit project.
07 8400 penetration firestopping.
07 7200 roof accessories.
Location of drains 5.
23 3460 roof and attic fans.
Install roof drain flashing collar or flange so that there will be no leakage between drain and adjoining roofing.
Secondary roof drainage is required by code coordinate with architect.
This form of roof drainage is preferred if a clean exterior appearance is desired.
22 0500 basic materials and methods.
These roof drains are standard for most insulated roofs.
Maintain integrity of waterproof membranes where penetrated.
22 0520 hangers struts and supports.
Type of roof construction 2.
Volume of expected rainfall consult the inch per hour rainfall map on page 5.
07 7220 roof and ridge vents.
Position roof drains for easy access and maintenance.
22 0510 valves metallic.
07 7100 roof specialties.