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BXUV.L563 Fire Resistance Ratings -ANSI/UL 263 Fire Resistance Ratings -ANSI/UL 263 Design No. L563 December 05, 2005 Unrestrained Assembly Rating -1 Hr Finish Rating -25 Min (See Items
5 or 5A) 1. Flooring System — The flooring system shall consist of one of the following: System No. 9 Subflooring — Min 23/32 in. thick T & G wood structural panels installed perpendicular
to trusses with joints staggered 4 ft. Plywood or nonveneer APA rated panels secured to trusses with construction adhesive and No. 6d ring shank nails spaced 12 in. OC along each truss.
Staples having equal or greater withdrawal and lateral resistance strength may be substituted for the 6d nails. Vapor Barrier -(Optional) — Nom 0.030 in. thick commercial asphalt saturated
felt. Finish Flooring -Floor Topping Mixture* — Min 1 in. thickness of floor topping mixture having a min compressive strength of 1000 psi. and cast density of 100 plus or minus 5 pcf.
Foam concentrate mixed 40:1 by volume with water and expanded at 100 psi through nozzle. Mixture shall consist of1.4 cu. feet of prefomed concentrate to 94 lbs. Type 1 Portland cement,
62.5 lbs. of pea gravel, 312.5 lbs. of sand with 5-1/2 gal. of water. LITE-CRETE – Type I 2. Trusses — Parallel chord trusses, spaced a max of 24 in. OC, fabricated from nom 2 by 4 lumber,
with lumber oriented vertically or horizontally. Min truss depth is 12 in. Truss members secured together with min 0.036 0356 in. thick galvanized steel plates. Plates have 5/16 in.
long teeth projecting perpendicular to the plane of the plate. The teeth are in pairs facing each other (made by the same punch), forming a split tooth type plate. Each tool has a chisel
point on its outside edge. These points are diagonally opposite each other for each pair. The top half of each tooth has a twist for stiffness. The pairs are repeated on approx. 7/8
in. centers with four rows of teeth per inch of plate width. 3. Air Duct* — Any UL Class 0 or Class 1 flexible air duct installed in accordance with the instructions provided by the
damper manufacturer. 4. Ceiling Damper* -(Optional) — For use with min 18 in. deep trusses Max plenum box size nom 19 in. long by 19 in. wide and 11-7/8 in. high fabricated from galv
steel. Aggregate damper openings shall not exceed 256 sq in. per 100 sq ft of ceiling area. Damper installed in accordance with the manufacturers installation instructions provided with
the damper. AIRE TECHNOLOGIES INC. – Models: CRD model 50 w/boot, CRD model 50EA w/boot, CRD model 55 w/boot, CRD model 55EA w/boot. LLOYD INDUSTRIES INC — Model CRD 50-BT, CRD 50-EA-BT,
CRD 55-BT, CRD 55 EA-BT 4A. Alternate Ceiling Damper* -(Optional) — For use with min 18 in. deep trusses Max plenum box size nom 13 in. long by 13 in. wide and 11-7/8 in. high fabricated
from galv steel. Aggregate damper openings shall not exceed 100 sq in. per 100 sq ft of ceiling area. Damper installed in accordance with the manufacturers installation instructions
provided with the damper. LLOYD INDUSTRIES INC — Model CRD 50-BT-6, CRD 50-EA-BT-6, CRD 55-BT-6, CRD 55 EA-BT-6 4B. Alternate Ceiling Damper* -(Optional) — For use with min 18 in. deep
trusses Max size ceiling outlet in plenum box nom 12 in. long by 12 in. wide. Plenum box fabricated from galv steel. Aggregate damper openings shall not exceed 144 sq in. per 100 sq
ft of ceiling area. Installed in accordance with the manufacturers installation instructions provided with the damper. AIRE TECHNOLOGIES INC. – Models: CRD model 50 w/boot, CRD model
50EA w/boot, CRD model 55 w/boot, CRD model 55EA w/boot. LLOYD INDUSTRIES INC — Model CRD 50-95BT, CRD 50-EA-95BT, CRD 55-95BT, CRD 55 EA-95BT 5. Batts and Blankets* — Glass fiber or
mineral wool insulation bearing the UL Classification Marking as to Surface Burning Characteristics and/or Fire Resistance. When the resilient channels (Item 6) are spaced 16 in. OC,
the insulation shall be a max of 3-1/2 in. thick, and shall be secured against the subflooring with staples at 12 in. OC or held suspended in the concealed space with 0.090 in. diam
galv steel wires attached to the wood trusses at 12 in. OC. When the resilient channels are spaced a max of 12 in. OC or when the Steel Framing Members (Item 6A) are used, there is no
limit in the overall thickness of insulation, and the insulation can be secured against the subflooring, held suspended in the concealed space or draped over the resilient channels (or
Steel Framing Members) and gypsum panel membrane. The finished rating has only been determined when the insulation is secured to the subflooring. 5A. Loose Fill Material* — As an alternate
to Item 5, when the resilient channels (Item 6) are spaced a max of 12 in. OC, or when the Steel Framing Members (Item 6A) are used -Any loose fill material bearing the UL Classification
Marking for Surface Burning Characteristics. There is no limit in the overall thickness of insulation. The finished rating when loose fill material is used has not been determined 6.
Resilient Channels — Formed from min 0.020 in. thick galv steel, 1/2 in. deep by 2 in. wide at the base and 1-1/4 in. wide at the face, spaced 16 in. OC perpendicular to trusses. When
insulation (Items 5 or 5A) is applied over the resilient channel/gypsum panel ceiling membrane, the resilient channel spacing shall be reduced to 12 in. OC. Channels secured to each
truss with 1-1/4 in. long Type S bugle head steel screws. Channels overlapped 4 in. at splices. Two channels, spaced 6 in. OC, oriented opposite each gypsum panel end joint as shown
in the above illustration. Additional channels shall extend min 6 in. beyond each side edge of panel. 7. Gypsum Board* — Nom 5/8 in. thick, 48 in. wide gypsum panels. When resilient
channels (Item 6) are used, gypsum panels installed with long dimension perpendicular to resilient channels. Gypsum panels secured with 1 in. long Type S bugle head steel screws spaced
12 in. OC and located a min of 1/2 in. from side joints and 3 in. from end joints. When insulation (Items 5 or 5A) is applied over the resilient channel/gypsum panel ceiling membrane
the screw spacing shall be reduced to 8 in. OC. End joints secured to both resilient channels as shown in end joint detail. When Steel Framing Members (Item 6A) are used, gypsum panels
installed with long dimension perpendicular to cross tees with side joints centered along main runners and end joints centered along cross tees. Panels fastened to cross tees with 1
in. long Type S bugle-head screws spaced 8 in. OC in the field and along end joints. Panels fastened to main runners with 1 in. long Type S bugle-head screws spaced midway between cross
tees. Screws along sides and ends of panels spaced 3/8 to 1/2 in. from board edge. End joints of panels shall be staggered with spacing between joints on adjacent panels not less than
2 ft OC. CANADIAN GYPSUM COMPANY — Types C, IP-X2, IPC-AR UNITED STATES GYPSUM CO — Types C, IP-X2, IPC-AR USG MEXICO S A DE C V — Types C, IP-X2, IPC-AR 8. Finishing System -(Not Shown)
— Vinyl, dry or premixed joint compound, applied in two coats to joints and screw-heads. Nom 2 in. wide paper tape embedded in first layer of compound over all joints. As an alternate,
nom 3/32 in. thick veneer plaster may be applied to the entire surface of gypsum board. *Bearing the UL Classification Mark