Piping-Through-Roof-Deck.pdf
PDF 142 KB Posted
- Attached to
- High School Roof Replacement
- Solicitation number
- RFP MASO 260000002613 1
- Issued by
- Genesee County, Edmore Village, Michigan
About this file
This is a technical drawing document that provides specifications for installing hot and cold piping through a built-up roofing (BUR) system. The drawing details the installation methodology for penetrating pipes through roof decks, including the layering sequence, fastening requirements, and weatherproofing measures necessary to ensure proper functionality and water resistance.
The specification requires wood nailers secured to the roof deck using appropriate fasteners in two staggered rows spaced 24 inches on center. The BUR insulation must be installed over the deck, followed by two-ply stripping flange set in specified asphalt cement and mechanically fastened at 3-inch intervals. A sheet metal collar and hood assembly must be installed with proper slope and drainage considerations, with fasteners spaced 8 inches on center. The metal work requires prime coating before stripping application, and pipes must slope downward and away from the hood. In cold climates, the interior of the metal work must be insulated. All joints and connections are sealed with asphalt cement, and metal screw seal closures are specified to complete the detail. The drawing is scaled as "not to scale" (NTS) and is dated 2023.
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Text version
DWG NO. 18
BUILT UP ROOFING
HOT/COLD PIPING THROUGH ROOF DECK
WOOD NAILER SECURED
SPECIFIED BUR
INSULATION
ROOF DECK
TO DECK w/ APPROPRIATE
FASTENERS, 2 ROWS
STAGGERED EACH
ROW 24'' O.C.
AS SPECIFIED
GRAVEL SURFACING
TWO-PLY STRIPPING
FLANGE SET IN SPECIFIED
ASPHALT CEMENT,
MECHANICALLY FASTENED
3'' O.C., PRIME METAL
FLANGE BEFORE STRIPPING
SLOPE PIPES DOWN
AND AWAY FROM
HOOD
FASTENERS 8'' O.C.
SHEET METAL
COLLAR
SEAL
INSULATE INSIDE OF
METAL WORK IN COLD
CLIMATES
SHEET METAL HOOD
CROSS BREAK
OR SLOPE FOR
DRAINAGE
METAL SCREW
SEAL
CLOSURE DETAIL
ASPHALT CEMENT
SEAL
MEMBRANE
SHEET TITLE:
DRAWING No.:
SCALE:
NTS
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File details come from the government source that posted it. Updated .