TABLE II. SHEET METAL JOINTS
TYPE OF JOINT
Copper, Terne-
Coated
Stainless
Item
Steel, Zinc-Coated
Designa- Steel and
tion
Stainless
Steel
Aluminum
Remarks
_____________________________________________________________________
Gutters
40 mm lap, riveted
25 mm flat locked,
Aluminum producers
and soldered
riveted, and sealed
recommended hard
setting sealant for
locked aluminum
joints.
(a)
Elastomeric flashing shall have 75 mm lap with manufacturer's
recommended sealant.
(b)
Polyvinyl chloride reglet shall be sealed with manufacturer's
recommended sealant.
TABLE II. SHEET METAL JOINTS
TYPE OF JOINT
Copper, Terne-
Coated
Item
Steel, Zinc-Coated
Designa- Steel and
tion
Stainless
Steel
Aluminum
Remarks
______________________________________________________________________
Joint cap
1.25 inch
1.25 inch
---
for
single lock,
single lock,
building
standing
standing
expansion
seam, cleated
seam, cleated
joint at
roof
Flashings
Base
One inch
One inch
Aluminum producer's
3 inch lap
flat locked,
recommended hard
for expansion
soldered; sealed;
setting sealant for
joint
3 inch lap for
locked aluminum
expansion joint
joints. Fill
each metal
expansion joint
with a joint
sealing compound
compound. See
Section 07920
JOINT SEALANTS.
Cap-in
3 inch lap
3 inch lap
Seal groove with
reglet
joint sealing
SECTION 07600
Page 29
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