Specifications - Lord and Son Construction, Inc.

3. Exterior sealant: Silicone Emulsion Sealant meeting ASTM C 920, Type S,
Grade NS, compatible with glass fiber mesh tape and for covering exposed
fasteners.
4. Setting Type Joint Compound: Factory prepackaged, job mixed chemicalhardening
powder products for bedding and filling.
a. Provide equal to USG “Sheetrock Brand Easy Sand Lightweight Setting-
Type Joint Compound”.
b. Use for all areas requiring setting or topping compound (ie: taping, filling,
and treating fasteners).
C. Fasteners: Steel drill screws, in lengths recommended by sheathing manufacturer
for thickness of sheathing board to be attached, with organic-polymer or other
corrosion-protective coating.
1. For steel framing less than 0.0329 inch thick, attach sheathing with steel drill
screws complying with ASTM C1002, Standard Specification for Steel Self-
Piercing Tapping Screws for the Application of Gypsum Panel Products or
Metal Plaster Bases to Wood Studs or Steel Studs.
2. For steel framing from 0.033 to 0.112 inch thick, attach sheathing with drill
screws complying with “ASTM C954 Standard Specification for Steel Drill
Screws for the Application of Gypsum Panel Products or Metal Plaster Bases
to Steel Studs from 0.033 in. to 0.112 in. in Thickness”.
3. Provide Type S or Type S-12 screws only.
PART 3 – EXECUTION
3.1 PREPARATION
A. Do not deliver or install gypsum board until building is fully enclosed, wet work is
complete.
B. Prior to finishing, HVAC system shall be operating and maintaining temperature
and relative humidity at occupancy levels during the remainder of the construction
period.
3.2 EXAMINATION
A. Examine substrates to which gypsum board construction attaches or abuts,
installed hollow metal frames, cast-in anchors and structural framing with Installer
present for compliance with requirements for installation tolerances and other
conditions affecting performance of gypsum board assemblies specified in this
Section.
1. Do not proceed with installation until unsatisfactory conditions have been
corrected.
MAHG121038 09 29 00 - 4 GYPSUM BOARD