or by the weight of expansion of the pipeline. Where pipe and conduit
penetrations of vapor barrier sealed surfaces occur, these items shall be
anchored immediately adjacent to each penetrated surface, to provide
essentially zero movement within penetration seal. Detailed drawings of
pipe anchors shall be submitted for approval before installation.
3.1.16
Building Surface Penetrations
Sleeves shall not be installed in structural members except where indicated
or approved. Sleeves in nonload bearing surfaces shall be galvanized sheet
metal, conforming to ASTM A 653/A 653M, Coating Class G-90, 1.0 mm (20
gauge) 20 gauge. Sleeves in load bearing surfaces shall be uncoated carbon
steel pipe, conforming to ASTM A 53/A 53M, [Schedule 30] [Schedule 20]
[Standard weight]. Sealants shall be applied to moisture and oil-free
surfaces and elastomers to not less than 13 mm 1/2 inch depth. Sleeves
shall not be installed in structural members.
3.1.16.1
Refrigerated Space
Refrigerated space building surface penetrations shall be fitted with
sleeves fabricated from hand-lay-up or helically wound, fibrous glass
reinforced polyester or epoxy resin with a minimum thickness equal to
equivalent size Schedule 40 steel pipe. Sleeves shall be constructed with
integral collar or cold side shall be fitted with a bonded slip-on flange
or extended collar. In the case of masonry penetrations where sleeve is
not cast-in, voids shall be filled with latex mixed mortar cast to shape of
sleeve and flange/external collar type sleeve shall be assembled with butyl
elastomer vapor barrier sealant through penetration to cold side surface
vapor barrier overlap and fastened to surface with masonry anchors.
Integral cast-in collar type sleeve shall be flashed [as indicated.] [with
not less than 100 mm (4 inches) 4 inches of cold side vapor barrier overlap
of sleeve surface.] Normally noninsulated penetrating round surfaces shall
be sealed to sleeve bore with mechanically expandable seals in vapor tight
manner and remaining warm and cold side sleeve depth shall be insulated
with not less than [100] [_____] mm [4] [_____] inches of foamed-in-place
rigid polyurethane or foamed-in-place silicone elastomer. Vapor barrier
sealant shall be applied to finish warm side insulation surface. Warm side
of penetrating surface shall be insulated beyond vapor barrier sealed
sleeve insulation for a distance which prevents condensation. Wires in
refrigerated space surface penetrating conduit shall be sealed with vapor
barrier plugs or compound to prevent moisture migration through conduit and
condensation therein.
3.1.16.2
General Service Areas
Each sleeve shall extend through its respective wall, floor, or roof, and
shall be cut flush with each surface. Pipes passing through concrete or
masonry wall or concrete floors or roofs shall be provided with pipe
sleeves fitted into place at the time of construction. Sleeves shall be of
such size as to provide a minimum of 6.35 mm 1/4 inch all-around clearance
between bare pipe and sleeves or between jacketed-insulation and sleeves.
Except in pipe chases or interior walls, the annular space between pipe and
sleeve or between jacket over-insulation and sleeve shall be sealed in
accordance with Section 07920 JOINT SEALANTS.
3.1.16.3
Waterproof Penetrations
Pipes passing through roof or floor waterproofing membrane shall be
installed through a 5.17 kg/sq. m. (17 ounce) 17 ounce copper sleeve, or a
SECTION 15182
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