TABLE II. SHEET METAL JOINTS
TYPE OF JOINT
Copper, Terne-
Coated
Item
Steel, Zinc-Coated
Designa- Steel and
tion
Stainless
Steel
Aluminum
Remarks
______________________________________________________________________
compound. See
Section 07920
JOINT SEALANTS.
Reglets
Butt joint
---
Seal reglet groove
with joint sealing
compound. See
Section 07920
JOINT SEALANTS.
Eave
One inch flat
One inch flat
Same as base
locked, cleated
locked, locked,
flashing.
One inch
cleated one inch
loose locked,
loose locked, sealed
expansion
expansion joints,
joint cleated
cleated
Stepped
3 inch lap
3 inch lap
---
Valley.
6 inch lap cleated
6 inch lap cleated
---
Edge
Butt
Butt
---
strip
Gravel
stops:
---
Butt with 1/2 inch
Use sheet flashing
space
beneath and a cover
plate.
Sheet,
Butt with 1/4 inch
Butt with 1/4 inch
Use sheet flashing
smooth
space
space
backup plate.
Sheet
Butt with 1/4 inch
Butt with 1/4 inch
Use sheet flashing
corru-
space
space
beneath and a cover
gated
plate or a
combination unit
Gutters
1.5 inch lap,
One inch flat locked,
Aluminum producers
riveted and
riveted, and sealed
recommended hard
soldered
setting sealant for
locked aluminum
joints.
(a)
Elastomeric flashing shall have 3 inch lap with manufacturer's
recommended sealant.
SECTION 07600
Page 30
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