G. Finish: [# choose one]
1. Premium thermoset silicone polyester (20 year warranty).
2. Premium fluorocarbon coating produced with Kynar 500 or Hylar 5000 resin (20 year warranty).
3. Bare Galvalume Plus® (20 year warranty).

H. Color:
1. Selected from metal roof system manufacturer’s standard offering.

I. Acceptable manufacturer:
1. ASBC - Houston, TX - (281) 445-8555.

# Insert: Architect’s (owner’s) method of approval of "or equals".

J. Other manufacturers desiring approval, comply with Section 01630.

K. Acceptable Curb and Equipment Support units:
1. LM Curbs - Longview, TX.
2. Kentuckiana Curbs - Louisville, KY.

L. Prefabricated Roof Jacks:
1. Construction Fasteners - Wyomissing, PA.
2. ITW Buildex - Itasca, IL.

M. Rooftop Walkways:
1. Unistrut Corporation - Wayne, Ml.

2.02 MISCELLANEOUS MATERIALS

A. Fasteners:
1. All self-tapping/self-drilling fasteners, bolts, nuts, self-locking rivets and other suitable fasteners shall be designed to withstand specified design loads.
a. Use long life fasteners for all exposed fastener applications.
b. Provide fasteners with a factory applied coating in a color to match metal roof system application.
c. Provide neoprene washers under heads of exposed fasteners.
d. Locate and space all exposed fasteners in a true vertical and horizontal alignment. Use proper torque settings to obtain controlled uniform compression for a positive seal without rupturing the neoprene washer.

B. Closures:
1. Metal roof system must be installed with die cast metal closures at all ridge and high eave transitions. These die cast metal closures must be installed with Tn-Bead tape sealant and fasteners that stitch the panel to a 16 gauge preformed backer plate to ensure a positive compression of the tape sealant. The use of a continuous angle butted to the panel ends to form a closure is not an acceptable installation method.

C. Accessories:

1. Provide all components required per the metal roof system manufacturer’s approved shop drawings for a complete metal roof system to include panels, panel clips, trim/flashing, fascias, ridge, closures, sealants, fillers and any other required items.
a. All outside closures will be fabricated from Galvalume Plus® sheet steel of the same gauge, finish and color as the panels.
b. All tape seal is to be a pressure sensitive, 100 percent solids, polyisobutylene compound sealing tape with a release paper backing. Provide permanently elastic, non-sagging, non-toxic, non-staining tape seal approved by the metal roof system manufacturer.
c. All joint sealant is to be a one-part elastomeric polyurethane sealant approved by the metal roof system manufacturer.

A. Material shall be in-line tension leveled prior to roll forming panel profile.

B. Where possible, roll form panels in continuous lengths, full length of detailed runs.

C. Standard panel length shall be no more than 45 feet long (for longer length availability, contact manufacturer).

D. Fabricate trim, flashing and accessories to detailed profiles.

E. Fabricate trim and flashing from same material as panel.

2.04 PREFABRICATED CURBS AND EQUIPMENT SUPPORTS

A. General: Comply with loading and strength requirements as indicated where units support other work. Coordinate dimensions of curbs and supports with equipment supplier/manufacturer.

B. Fabricate curbs of structural aluminum (Min. .080 in. thickness for mechanical gear up to 1000 Ibs; .125 in. thickness for mechanical gear between 1000 lbs. and 2000 lbs.; use a two curb system per the manufacturer above 2000 lbs.), factory primed and prepared for painting with mitered and welded corner joints. Provide integral base plates and water diverter crickets. The upper flange of the curb must be a minimum of 15" above the water diverter. (This allows 12" of free area after the panel is lapped over the flange on the high side.) Curbs shall be designed to install under metal roof systems on the high side and over the metal roof system on the low side.

C. Minimum height of curb shall be 8" above finished metal roof system.

D. Curbs shall be constructed to match slope of roof and provide a level top surface for mounting equipment.

E. Curb flanges shall be constructed to match configuration of roof panels.

F. Curb manufacturer will provide its own curb structural support system that can be installed between the purlins that will allow proper thermal movement of the curb with the roofing system.

G. Submit roof curb manufacturer’s shop drawings to metal roof system manufacturer for approval before fabrication of curbs.