Draft Attachment 6 - General Material Requirements.pdf
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- Solicitation number
- REQUIREMENTS-24-2281
About this file
This document appears to be an attachment to a federal contract opportunity that outlines general material requirements. The key details are:
The roof decking must be designed to support a 91 kg (200-pound) concentrated load at mid-span on a 300 mm (12-inch) wide section. Metal decking, stairs, and railings must be non-corrosive. Electrical components must be located in conduit using code-compliant outdoor-rated junction boxes and outlets, following electrical safety criteria. Wood framing members must meet minimum grading requirements for studs, joists, rafters, beams, posts, blocking, fascia, and trim. Exterior wall and roof sheathing must be APA rated plywood of specified minimum thicknesses.
The related federal contract opportunity is for repairs to the roof of the Mauna Loa Atmospheric Baseline Observatory (MLO) Network for the Detection of Atmospheric Composition Change (NDACC). This is a pre-solicitation, so full details on the response dates, award, pricing, and other terms are not provided in this attachment.
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Text version
Attachment 6 - General Material Requirements
1. Roof Decking - In addition to any other load requirements, roof decking must be designed to support a 91 kg (200-pound) concentrated load at mid-span on a 300 mm (12-inch) wide section of deck.
2. Metal Decking: Roof decking, stairs and railings shall be non-corrosive metal. Decking to be aluminum metal bar grating sized for anticipated loads.
3. Electrical: Follow electrical safety criteria specified in USACE EM 385-1-1, and NFPA 70E during the conduct of all work. All electrical components to be located in conduit and using code-compliant outdoor-rated junction boxes, outlets, etc.
4. Wood framing: Wood framing members must be new lumber, unless otherwise allowed by Part 3 - Statement of Work. Timber can be Douglas Fir, Douglas Fir-Larch, Hem-Fir, Southern Pine or other structurally competent species allowed by applicable codes and standards. Wood framing must meet the following minimum grading requirements:
a. Studs - #2
b. Joists and rafters- #2
c. Beams, 4x and larger - #1
d. Posts, 4x and larger - #1
e. Blocking - #3
f. Fascia, trim - #1
g. Wood Structural Panel Sheathing (Exterior Glue)
h. Roof - APA rated with span index of 24/0 - minimum thickness 1/2 inch
i. Walls - APA rated with span index of 32/16 - minimum thickness 1/2 inch
j. Flooring- APA rated with span index of 48/24 - minimum thickness 3/4 inch
DRAFT
File details come from the government source that posted it. Updated .