specifications - FAACO - Federal Aviation Administration Contract ...

3.02 METAL PARTITION SYSTEM:FTWIC-2235June, 2009A. Align floor and top runners vertically so that partitions are plumb and true, according topartition layout dimensions. Secure runners with power-driven fasteners spaced notexceeding 24" inch o.c., or secure to suspended ceilings at a maximum of 16" inch o.c.B. Position studs vertically, engaging both floor and top runners at 16" inch o.c. Anchorstuds adjacent to doors, window frames, partition intersections and corners to runnerflanges with 3/8" inch Type S, pan-headed screws through each flange. Locate studs nomore than 2" inches from door frame, intersections, and corners.C. Form corners of partitions with three (3) studs one turned 90 degrees to the other two.Install screws from anchoring studs to tracks at both sides of partitions. Anchor studsadjacent to doors, window frames, partition intersections and corners to runner flangeswith 3/8" Type S, pan-headed screws through each flange. Locate studs no more than 2"inches from door frame, intersections, and corners.D. Brace straight runs of partitions at 10' feet intervals. Bracing shall consist of not less thanmetal studs secured to the top track and extending in both directions at an angle ofapproximately 45 degrees up to the structural members on either side and abovepartitions. Braces shall be installed in a manner that stresses cannot be transferred fromstructure into the partition system.E. Double studs at each side of door openings, Where door width exceeds 36 inches, useheavy gauge studs (20 gauge or heavier) at each jamb. Studs shall be placed web to web.Fasten jamb stud to each frame anchor with two fasteners. Over metal door or borrowedlight frames, install a cut-to-length section of runner with flanges slit and web bent so thatflanges overlap adjacent vertical studs. Attach with screws.F. Provide an additional stud at 2 inches from ends of partition or where partition buttsagainst a dissimilar surface. Where doors occur, install first partition stud within 2 inchesof the jamb stud. Provide reinforcing and blocking for all trades.3.03 WALL FURRING:A. Attach hat-section-type furring channels to concrete or masonry at 16" o.c. with powerdriven fasteners 24" o.c. through alternate flanges in accordance with the manufacturer'sspecifications. Align channels plumb and position accurately.B. Install gypsum wallboard over furring channels in a vertical direction and attached toeach row of furring channels with drywall screws at 6 inch centers. Provide additionalchannels in vertical direction at joints of gypsum board. Wallboard edges shall occurover a metal channel on all four sides.3.04 FURRED CEILINGS:Provide furred ceilings, as indicated on the plans. Furred spaces shall be designed to carry onlytheir own weight. Where necessary to hang millwork, upper wall cabinets, or other loads, furnishadditional blocking, hangers, or framing, as required.09260-6