General Specifications

Laminated Foundation Columns and Footings:

 

            The structural nail laminated foundation columns shall be three members No. 1 or better Southern Pine, Kiln dried to 19% moisture content.  Foundation columns shall be pressure treated with a wood preservative to retention of 0.8 pounds per cubic foot and kiln dried after treating to 19% maximum moisture content.  The wood preservative shall be Chromated Copper Arsenate Type III, Oxide type; or equal as listed in Federal Specification TT-W-571J.  The preservative shall penetrate 100% of the sapwood.  A letter of certification from the wood preserver shall be furnished which certifies the 0.8-pcf preservative retention for a 0 to 0.75” assay zone.

           

The foundation columns shall be accurately place and shall extend 4’-0” minimum below grade.  The foundation column shall have ½” diameter x 10’long steel rod, located 3-1/2” up from the base, and extending through all (3) members.  Base of column shall be set in a footing of 28 day test verified 3000 psi compressive strength dry concrete mix, half under and half around to permanently attach the footing and foundation column.  The footing shall bear on undisturbed soil.  Footing size shall be determined from applied structural loads and 4000 #/S.F. presumptive soil bearing capacity.  After accurate placement of foundation column and specified footing, hold shall be backfilled with dry, debris-free dirt compacted in 8’ lifts.

 

Laminated Upper Columns:

           

No. 1 or better Southern Pine nail and glue laminated repetitive S4S members of 19% maximum moisture content shall be sized according to dimensions of structure and required structural loads.

 

Foundation Column to Upper Column Connection:

           

Structural design shall show, by test or calculation, the foundation column to upper column connection to be adequate for all imposed bending and axial forces.

 

Splash Boards:

 

            Splashboards are No. 2 or better Southern Pine nominal 2x8 S4S pressure treated to a net retention of 0.4 pounds per cubic foot with chromated copper arsenate Type III, Oxide type, in accordance with American Wood Preservers Association Specification C2.

 

Eaveboard:

 

            Sidewall eaveboards shall be 2x6 No. 2 Spruce-Pine- Fir or better, and shall be beveled on the top edge at the same degree as the roof slope.

 

 

Framingboard:

 

            Wall girts shall be 2x6 No. 2 Southern Pine, 19% maximum moisture content spaced approximately 24” to 30” o.c., with all ends bearing into wide face column.  Roof purlins shall be recessed between trusses, on edge, and attached to trusses with adequate fasteners.  Continuous 2x4 lateral bracing shall be provided as required in truss specification.  All other framing lumber shall be standard grade or better unless specified differently on plans.  All lumber shall be free of warping, twisting, or splitting.

 

Specification for Metal Plate Connected Wood Trusses:

 

1.      All lumber used in the design of wood trusses must be cured and graded in accordance with

Current grading rules.  Design stresses allowed are those listed in the current editions of

Respective lumber association’s grading rules.

 

2.      The design of wood members must be in accordance with the formulas published in the latest 

Edition of the National Design Specification for Wood Construction as revised to current date.

 

3.      Metal connector plates and joint design must conform to specifications as set forth in the

1995 edition of the recommended design practice of the Truss Plate Institute, Inc. entitled Design Specification for Metal Plate Connected Wood Trusses (TPI-95) as revised to current date.

 

4.      Truss members and joints must be designed in accordance TPI-95.  All truss design must be

Accompanied by complete and accurate shop drawings bearing the seal of a Professional or Structural engineer, registered in the project State, and contain the following information:

(a)    Slope or depth, span and spacing of the truss.

(b)    Location of all joints.

(c)    Bearing width.

(d)    Design loading to include, as applicable:

(1)    Top chord live load.

(2)    Top chord dead load.

(3)    Bottom chord live load.

(4)    Bottom chord dead load.

(5)    Concentrated loads and their points of application.

(e)    Adjustments to lumber and plate design values to include modification for, as applicable.

(1)    Moisture service conditions.

(2)    Temperature.

(3)    Preservative treatment.

(4)    Fire retardant treated wood.

(5)    Duration of load.

(6)    Flexure.

(7)    Shear.

(f)      Each reaction force.

(g)    Each axial force (Heel panel axial forces shall not exceed 25,000#).

(h)    Lateral bracing requirements:

(1)    Top chord brace (roof purlin) spacing.

(2)    Bottom chord brace spacing.

(3)    Web bracing, as applicable.

(i)      Plate type, Thickness or gauge, size; basic plate design value (specifying gross or net

Value); and the dimensioned location of each plate except where symmetrically located relative to the joint interface.

(j)      Lumber size, species, and grade for each member.

 

5.      Design calculations for bending moments shall be available for the designer.

 

Roofing and Siding Panels:

 

            Metal panels are G-90 (Max-Rib 90) zinc-treated, hot-dipped galvanized or GALVALUME ™ (Max Rib Ultra) 80,000#/SI minimum yield strength structural grade sheet steel.  The paint process is a Kynar 500/Hylar 5000 Fluropon paint system. Utilizing the full strength 70% PVDF (fluoropolymer) resin and durable ceramic pigmentation.  Panels shall be fastened with nails or screws, which are compatible to the panels in both life expectancy and environmental stability.  All panels will be one piece unless lengths greater than 40 feet are required or the panels must be shortened to accommodate certain building features. (GALVALUME ™ is a trademark of the Bethlehem Steel Corporation.  Kynar 500 is a registered trademark of Elf Atochem North America, Inc.  Hylar 5000 is a trademark of Ausimont USA, Inc. Fluropon is a registered trademark of the Valspar Corporation.

 

Steel Panel Attachment:

 

            10 gauge x 2” length galvanized lock ring shank nails with Ό” thick gray silicone washer

For attachment of roof steel panels through high-rib into framing.

 

      10 gauge x 1 ½” length galvanized lock ring shank nails with washer for attachment of steel siding panels through flat into framing.

 

Optional Screw Fastener:

 

            The steel panels shall be fastened to building framing by plated steel sharp point screws with zinc/aluminum/cast nonferrous alloy hex washer heads pre-assembled with aluminum bond seal washers, which cannot red rust and are compatible with steel panel.  Woodzac by Construction Fasteners, Inc. or equal, are acceptable.

 

Nail Fasteners – Framing:

 

            9 gauge x 3-1/2” length 16d oil quench hardened lock ring shank framing nails – galvanized when in contact with pressure treated lumber.

 

Closure Strips:

 

            1” wide closed-cell linked expanded polyurethane, to match panel corrugation. 

 

Openings:

 

            All openings shall be framed to proper size and trimmed to cover all exterior edges with pre-painted flashings.

 

Trim:

 

            0.0158-inch min. thickness steel on gables, ridge, corners, base, windows, and doors with same paint finish as roofing and siding panels.

 

Gutters and Downspouts:

 

            Gutters shall be 5” O.G. or Style K type gutters installed on all eaves of the building, and provide 2”x3” downspouts and elbows as required for proper drainage.  Color of gutters and downspouts to match trim with same paint finish as roofing and siding panels and to be selected by owner.

 

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1543 State Highway #91 Oran, Missouri. 63771

800-548-6765

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