color and surface texture.
Replace items which cannot be repaired.
[3.5
FIELD QUALITY CONTROL
**************************************************************************
NOTE: When justified by amount or criticality of
roofing involved, and similar requirements are not
established for Contractor Quality Control
organization specified elsewhere, add the following
requirements at end of paragraph entitled "Field
Quality Control":
"A roofing technician responsible directly to
Contractor and experienced in construction of
built-up roofing systems and related work shall
perform quality control functions and be on site
wherever roofing operations are in progress."
**************************************************************************
Establish and maintain a Quality Control Plan for sheet metal used in
conjunction with roofing to assure compliance of the installed sheet
metalwork with the contract requirements. Work not in compliance with the
contract shall be promptly removed and replaced or corrected.
Quality
control shall include, but not be limited to, the following:
a.
Observation of environmental conditions; number and skill level of
sheet metal workers; condition of substrate.
b.
Verification that specified material is provided and installed.
c.
Inspection of sheet metalwork, for proper size(s) and
thickness(es), fastening and joining, and proper installation.
3.5.1
Procedure
Submit for approval prior to start of roofing work. Include a checklist of
points to be observed. Document the actual quality control observations
and inspections. Furnish a copy of the documentation to the Contracting
Officer at the end of each day.
TABLE I.
SHEET METAL WEIGHTS, THICKNESSES, AND GAGES
[Copper,
[Terne-
[Zinc-
kilograms
Coated
Coated
Per
[Stainless Stainless Steel,
Sheet Metal Items
Square
[Aluminum,
Steel,
Steel,
mm]
meter]
mm]
mm]
mm]
___________________________________________________________________________
[Building Expansion
Joints]
[Cover]...............
4.9
0.81
0.38
0.38
0.6
[Waterstop-bellows or
flanged, U-type.]....
4.9
-
0.38
0.38
-
[Covering on minor flat,
pitched or curved
surfaces]............
6.125
1.02
0.46
0.46
-
[Downspouts and
leaders].............
4.9
0.81
0.38
0.38
0.6
SECTION 07600
Page 24
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