Specifications.pdf

Six Rivers National Forest

NRA Two Story Residence Emergency Repair

SECTION 010100

SUMMARY OF WORK

PART 1 - GENERAL

1.01 WORK COVERED BY CONTRACT DOCUMENTS

A. Description:

1. The work consists of furnishing all labor, supervision, equipment, transportation and materials for the following:

2. Demolition by careful removal of exterior siding and interior lathe and plaster to expose the structural wall framing at the repair area shown on the first floor plan drawing. Inspect for dry rot and/or insect damage to exterior and interior stud walls; top plate; sill plates; window and door framing; window and door trim.

3. The contractor shall salvage the wood siding and other materials in good condition to reuse.

4. Remove damaged wood framing, sill plates, top plates, headers, siding, baseboard and trim. Reconstruct with new materials. New materials shall be solid lumber as specified in Section 061000 – Rough Carpentry. New materials shall closely match the dimension of the removed materials.

5. Inspect electric circuits, conduit, switches and outlets in exposed wall and replace items that do not meet the most current electrical code requirements.

6. Inspect surfaces of materials that will remain. Clean any surface mold with an approved mildicide and allow drying time before finishing.

7. Replace water damaged lathe and plaster with 5/8 inch gypsum wall board.

Texture, color and finish shall match the existing lathe and plaster texture, color and finish.

8. Paint interior gypsum wall board, baseboard, window and door trim to match the existing paint colors.

9. Once all the interior and exterior repair work is complete, the contractor shall prepare and paint the entire exterior of the two story residence building. The contractor shall paint all exterior siding, trim, eaves, fascia, rakes, shutters and doors etc. to match the existing paint colors.

10. The Contractor should carefully review all sections of the Specifications in order to completely understand the work and all constraints including schedule, and material requirements.

11. The Contractor is encouraged to proceed in an orderly and expeditious manner according to a construction schedule developed by the Contractor and mutually agreed upon with the Forest Service prior to the commencement of the work. All work is to be constructed in strict accordance with the specifications and current California Building Codes.

B. Contractor's duties:

1. Except as specifically noted, provide and pay for:

a. Labor, materials and equipment.

b. Tools, construction equipment and machinery.

c. Phone and utilities required for construction.

d. All other facilities and services necessary for proper execution and completion of work.

2. Pay legally required sales, consumer and use taxes.

3. Give required notices.

4. Comply with codes, ordinances, rules, regulations, orders and other legal requirements of public authorities which bear on performance of the work.

5. Promptly submit written notice to Contracting Officer of observed variance of contract documents from legal requirements.

6. If any subcontractor or person employed by the Contractor shall appear to the

Contracting Officer to be incompetent or to act in a disorderly or improper manner, he shall be discharged immediately on the requisition of the Contracting Officer, and such person shall not again be employed on the work.

7. It is the Contractor's responsibility to obtain all necessary permits and comply with same.

1.02 CONTRACTS

A. All work is contained in this contract. The limits of work are shown in the Plans and described in these Specifications. It will be the Contractor's responsibility to coordinate their activities to resolve conflicts.

1.03 WORK SEQUENCE

A. The first order of business is submission of submittals. See Section 013000 for information on timing of Submittals.

1.04 CONTRACTOR USE OF PREMISES

A. Construction storage areas for materials and equipment shall be approved by the

Contracting Officer.

B. Confine operations at site to the construction areas specified under this contract.

C. The Contractor shall coordinate the work to minimize disturbance to Forest Service personnel and the public. The Contractor shall schedule their work between 0600 and 1800, Monday through Friday. The Contractor may work during weekends and federal holidays with prior written approval from the Contracting Officer.

D. Water, restrooms and electric power is available at the project site.

E. Do not encumber site with materials or equipment.

F. Do not load structure or roadway with weight that will endanger or render unusable any structures or roadways.

G. Assume full responsibility for protection and safekeeping of products stored on premises.

H. Move any stored products which interfere with operations of Forest Service or other

Contractor.

I. Return all surface areas to their original condition upon completion of the work.

PART 2 - PRODUCTS

Not Used.

PART 3 – EXECUTION

PART 4 – MEASUREMENT AND PAYMENT

Not Used

END OF SECTION 010100

SECTION 013000

SHOP DRAWINGS AND SUBMITTALS

1.01 SCOPE:

A. Perform all work necessary and required for the construction of the project as indicated. Such work includes but is not limited to the following:

1. Shop Drawings

2. Samples

3. Catalog Data

1.02 SUBMITTALS

A. Submittals shall include all pertinent data required to understand the quality of components, dimensional relationships, integration with other materials, assembly techniques, structural aspects, color, finish, texture, and other such characteristics as may be necessary to fully describe the item and its intended use.

2.01 SUBSTITUTIONS

A. Contracting Officer's approval required:

1. The Contract is based on the materials, equipment, and methods described in the Contract Documents.

2. The Contracting Officer will consider proposals for substitution of materials, equipment, and methods only when such proposals are accompanied by full and complete technical data and all other information required by the Contracting Officer to evaluate the proposed substitution.

3. Do not substitute materials, equipment, or methods unless such substitution has been specifically approved for this work by the Contracting Officer.

B. "Or equal":

1. Where the phrase "or equal" occurs in the Contract Documents, do not assume that material, equipment, or methods will be approved as equal by the Contracting Officer unless the item has been specifically approved for this work by the Contracting Officer.

2. The decision of the Contracting Officer shall be final.

C. Availability of specified items:

1. Verify prior to bidding that all specified items will be available in time for installation during orderly and timely progress of the work.

2. In the event specified item or items will not be available, notify the Contracting

Officer prior to receipt of proposals.

3. Costs of delays because of non-availability of specified items, which such delays could have been avoided by the Contractor, shall be the responsibility of the Contractor.

PART 3 - EXECUTION

3.01 SUBMITTALS

A. Submittals and shop drawings shall be submitted in a timely fashion to allow 7 days for review by the Government. "No work shall begin until shops drawings and submittals are approved".

3.02 SHOP DRAWINGS

A. Original Submittal: A reproducible and four copies of all shop drawings shall be submitted for approval as required under 3.01 above prior to fabrication, installation or order placement to allow for checking and coordination. The Contracting Officer will retain the reproducible.

B. Resubmittal: When a resubmittal is required, one print so indicating will be returned to the Contractor. After revision of the original, a new reproducible and four copies shall be submitted for approval.

C. Approval: Once approved, stamped documents shall be returned to the Contractor and shall be complied with as noted. Variation from the approved documents shall be likewise submitted and approved before being carried out.

3.03 SAMPLES

A. Original Submittal: Two samples of each item for which samples are required, unless otherwise specified, shall be furnished for approval. Approval shall be obtained prior to delivery of the material to the project site. These samples shall be representative of the actual material proposed for use in the project and of sufficient size to demonstrate design, color, texture and finish as they will appear in the completed installation.

B. Resubmittals: All rejected samples will be returned upon request and any or all resubmittals required shall consist of two new samples.

C. Approval: Upon approval, one sample so noted will be returned and the Contracting

Officer will retain the remainder until completion of the work. When requested, all approved samples will be returned for installation providing identity is maintained in an approved manner until final acceptance of the project.

3.04 CATALOG DATA

A. Submittals: Four copies of catalog data are required for the original submittal and each resubmittal. Catalog data shall be submitted along with shop drawings. One copy will be returned unless additional copies are requested.

B. Data: Each submittal shall have all pertinent data contained therein that is applicable to the item submitted for approval.

3.05 IDENTIFICATION

A. Catalog Data: Each separate catalog brochure or page submitted shall have the identification shown. Catalog of brochures submitted containing multiple items for approval need have only cover identification. In such cases the identification shall include page and catalog item numbers.

B. In the event one or more of the multiple items are not approved in any submittal, the additional copies required will not be requested until all items are approved.

END OF SECTION 013000

SECTION 015600

SITE AND AREA CLEANUP

1.01 DESCRIPTION

A. Maintain work areas free from accumulations of waste, debris, dust and mud caused by Contractor's operations.

B. At completion of Work, remove all waste materials, tools, equipment, machinery, surplus materials; leave property clean; leave all rights of ways in a condition equal to that at the beginning of Work.

3.01 DURING CONSTRUCTION

A. Execute cleaning to insure that any private property, grounds and especially access roads and public properties are maintained free from accumulation of waste materials, dust, mud and debris.

B. The Contractor shall keep all access roads clean and free of dust, mud and debris resulting from his own operations.

C. All waste materials, debris and rubbish shall be recycled or disposed of at legal solid waste facilities to be chosen and paid for by the Contractor.

D. If the Contractor does not properly clean up (in the opinion of the Contracting

Officer), then the Contracting Officer shall have the option of using outside equipment to perform the work and such cost will be withheld from the Contract.

END OF SECTION 015600

SECTION 019000

MOBILIZATION

1.01 SCOPE:

A. This work consists of preparatory work and operations necessary for the movement of personnel, equipment, supplies, and incidentals to the project site, and for all other work and operations that must be performed or that cause costs to be incurred prior to beginning work on the various items on the project site.

1.02 MEASUREMENT AND PAYMENT

A. The accepted quantities will be paid for at the contract unit price for item 019000

Mobilization.

B. Progress payments will be made as follows:

1. The Government will pay to the Contractor in the first progress payment the total premium paid by the Contractor to obtain bonds. This payment shall not be in addition to the contract price and will be included in Item 019000, Mobilization.

2. When 5 percent or more of the original contract amount is earned from other pay items, 50 percent of the amount for mobilization, or 5 percent of the original contract amount, whichever is less, will be paid.

3. When 10 percent or more of the original contract amount is earned from other pay items, 100 percent of the amount for mobilization, or 10 percent of the original contract amount, whichever is less, will be paid.

4. Upon completion of all work on the project, any unpaid amount for item

019000, Mobilization, will be paid.

C. The total of all payments will not exceed the original contract amount for item

019000, Mobilization.

PART 2 - PRODUCTS

PART 3 – EXECUTION

4.01 Measurement and Payment - Payment will be made for work included under this section. Payment for this work will be included in the contract unit price for Section 019000 - Mobilization.

END OF SECTION 019000

SECTION 020500

DEMOLITION

Demolition and removal of timber, wood waste, plaster and associated assemblies and all construction debris.

1.02 QUALITY ASSURANCE

Comply with all pertinent codes and regulations.

1.03 JOB CONDITIONS

A. Existing Conditions:

1. Hazardous materials disclosure.

Asbestos and lead base paint has been found in building materials at Building #1000. Areas of concern are indicated in the attached 2004 Asbestos and Lead Surveys Report. The Contractor shall take required precautionary measures in the removal of any hazardous materials during the course of construction.

B. Disposition of material:

1. Title to materials:

Title to all materials to be removed, except as specified otherwise, is vested in the Contractor upon receipt of notice to proceed. The Forest Service will not be responsible for the condition or loss of, or damage to, such property after notice to proceed.

2. Reuse of materials and equipment:

Carefully remove and store materials and equipment indicated to be reused or relocated to prevent damage, and reinstall as the work progresses.

3. The Contractor shall submit a plan for the disposal of any hazardous materials encountered during demolition. The plan shall describe the manner the construction debris will be removed from the site and identify disposal sites that will be utilized.

C. Protection:

1. The Contractor shall be responsible for and protect existing facilities from damage including temporary protection.

2. The Contractor shall maintain continuous security by providing temporary door and openings around the perimeter of the existing building where existing closures are removed or not operable.

3. Where the building is exposed to the weather due to work specified, provide temporary closures for its protection. Remove the temporary closures as the work progresses and the existing and new construction is closed in. Protect all openings and keep openings weather proof and watertight at all times.

D. Cleanup:

1. Debris and rubbish:

Contain, remove and transport debris and rubbish. Other applicable requirements are included under Section 015600, Site and Area Cleanup.

2. General:

Use all means necessary to protect existing structures designated to remain and, in the event of damage, immediately make all repairs and replacements necessary to the approval of the Contracting Officer at no additional cost to the Forest Service.

3.01 SITE INSPECTION

A. Prior to any demolition work, carefully inspect the site and determine the extent of work involved.

B. Report any discrepancy to the Contracting Officer immediately.

3.02 SHORING AND BRACING

Provide any temporary shoring or bracing which may be required during demolition.

3.03 SAFETY

All work shall conform to pertinent OSHA regulations and to other State and local codes and ordinances as applicable.

3.04 REMOVAL OF DEBRIS

Properly handle and remove all debris from the site and leave the site in a neat and orderly condition.

4.01 MEASUREMENT

Measurement for Demolition will be made on a lump sum basis.

4.02 PAYMENT

Payment shall be made as a percentage of completion at the time of progress payment application and shall be included.

END OF SECTION 020500

SECTION 061000

ROUGH CARPENTRY

1.01 SUMMARY

A. Section Includes: All labor, materials and equipment and all operations required to complete all rough carpentry and structural framing as indicated on the drawings, as required; and as specified herein, including:

1. Structural floor, wall, and roof framing.

2. Floor, wall, and roof sheathing.

3. Rough hardware, framing connectors and fasteners.

4. Treatment of wood.

5. Concealed wood blocking for support of work requiring supporting blocking.

6. Miscellaneous wood nailers and furring strips, other wood framing, furring, shims or blocking as required to complete the work.

B. Related Sections:

1. Pertinent section of Division 06 specifying wood construction and materials.

A. ANSI/AF & PA National Design Specification for Wood Construction.

B. California Building Code, CBC, Part 2, latest edition.

C. PS 1 - Construction and Industrial Plywood; National Institute of Standards and Technology (Department of Commerce).

D. PS 2 – Performance Standard for wood-based structural-use panels (Department of Commerce).

E. PS 20 - American Softwood Lumber Standard; National Institute of Standards and Technology (Department of Commerce).

F. RIS (GR) - Standard Specifications for Grades of California Redwood Lumber;

Redwood Inspection Service.

G. WCLIB (GR) - Standard Grading Rules for West Coast Lumber No. 17, September 1991, rev. January 2004; West Coast Lumber Inspection Bureau.

H. WWPA G-5 - Western Lumber Grading Rules, October 2004; Western Wood Products Association.

I. AWPA- American Wood- Preservers Association.

1.02 QUALITY ASSURANCE

A. Requirements of Regulatory Agencies, refer to pertinent sections of Division 01 and CBC Chapter 19.

B. All tests shall be performed by a recognized testing agency as specified in pertinent sections of Division 01.

C. Inspection of fabricators is required per CBC 1704.2 unless fabricator is registered and approved by the building official. Wood product quality standards:

1. All wood products to comply with article REFERENCES.

2. Factory-mark each piece of lumber and plywood with type, grade, mill and grading agency, except omit marking from surfaces to be exposed with transparent finish or without finish.

D. End-Jointed lumber shall not be used.

E. Hardware and engineered wood products shall have current ICC ES Evaluation/research reports that are equivalent to products specified.

F. Employ competent workmen experienced in work of the types specified and required.

G. Certify that wood products supplied for rough carpentry meet or exceed specified requirements, including specified moisture content.

1.03 DELIVERY, STORAGE AND HANDLING

A. Comply with pertinent requirements of Division 01.

B. Delivery: Time delivery and installation of carpentry products to avoid delaying other trades whose work is dependent on or affected by this section and to comply with moisture content, protection and storage requirements.

C. Keep materials dry at all times. Protect against exposure to weather and contact with damp or wet surfaces. Stack lumber and plywood to prevent deformation and provide air circulation within stacks.

1. Store materials for which a maximum moisture content is specified only in areas where relative humidity has been reduced to a level where specified moisture content can be maintained.

2. Handle and store materials above ground to prevent damage, contamination or accumulation of dirt or foreign materials.

3. Provide special protection for horizontal plywood and OSB. Deformation of panels due to moisture is not acceptable.

1.04 PROJECT/SITE CONDITIONS

A. Verify all condition at project site affecting the work; work to field dimensions as required. Coordinate carpentry installation with size, location and installation of service utilities.

PART 2 – PRODUCTS

2.01 DIMENSIONED LUMBER

A. Size per industry standards for nominal sizes shown; S4S.

B. Moisture content of framing: All lumber to be maximum 19% at time of fastener installation, except 3x and 4x studs may be 25% at time of sheathing nailing. All lumber to be a maximum 19% at time of close-in U.N.O.

1. The Contractor shall recognize that excessive shrinkage of lumber results from excess moisture content at the time of installation and will compensate for use of such lumber by waiting for acceptable moisture content before close in and/or by replacing/repairing lumber that has sagged, twisted, or warped prior to close in.

2. Deviation from this specification would require structural redesign of connections and fasteners.

C. Sills on concrete or masonry: Redwood foundation grade, or No. 2 pressure treated Douglas Fir and as called for on the drawings.

D. Interior structural framing shall be Douglas Fir with grades as noted below, unless otherwise specified on the drawings. All grades are per WCLIB standard grading rules.

1. All permanently exposed (interior or protected from weather) framing shall be select structural grade with no box heart.

2. Except per 1 above, U.N.O., minimum grades are:

Floor and roof joists and rafters (2x) and 2x8 studs: D.F. No. 2 2x4 and 2x6 studs and plates: D.F No. 2 4x and larger: D.F. No. 1 Blocking: D.F. No. 2. 6x8 and larger posts and beams: shall be SGL/CGL per 2.2.A below when so noted on the drawings.

E. Exterior structural framing (exposed to weather) shall be redwood select structural grade or pressure treated D.F. No. 1, U.N.O.

F. Structural decking shall be D.F. select decking or White Pine select where not exposed to moisture and Alaskan Cedar where directly exposed to moisture or high humidity for prolonged periods of time. Moisture content at time of installation to be less than12%.

G. Framing not otherwise shown or specified: Douglas Fir, construction grade per WCLIB paragraphs applicable to uses and sizes required.

H. Splits and checks are to be limited to 1x the depth of the member.

I. Warped/twisted and excessively checked members shall not be used regardless of grade marks.

2.02 MANUFACTURED LUMBER

A. Structural Glued Lumber (SGL) or Certified Glued Lumber (CGL): When so noted on the drawings, beams and posts 6x8 and larger (not specified as glu-laminated post or beams) are to be SGL/CGL conforming to WCLIB grading rules and ICC AC 47 for D.F. #1 Grade. All SGL/CGL lumber shall be graded and stamped accordingly. Glu-laminated Timber of equal size and grade meeting the requirements of section 06180 may be substituted for SGL/CGL Acceptable manufacturers:

1. Rosboro Manufactured Timber; RMT Timber.

B. Laminated Veneer Lumber (LVL); when so noted on the drawings, for use as joist, beams, blocking or studs. Conform to ICC AC 47. Acceptable Manufacturers:

a. Weyerhauser; Micro=Lam LVL.

b. Pacific Woodtech LVL.

C. Laminated Strand Lumber (LSL); for use as blocking (flat or vertical) or rim joist when used with IJ or LVL. Conform to ICC AC 124. Acceptable Manufacturers:

a. Weyerhauser; Timberstrand LSL.

D. Parallel Strand Lumber (PSL); for use as beams and posts when so noted on the drawings. Conform to ICC AC 47.

a. Weyerhauser; Parallam PSL.

2.03 MANUFACTURED STRUCTURAL PANELS

A. Plywood: All structural plywood shall be grade marked for conformance with PS 1 and shall be fabricated with exterior glue. Grades shall be as required on the drawings.

B. Oriented Strand Board (OSB): All structural OSB shall be grade marked for conformance with PS2 and shall be fabricated with exterior glue. Grades shall be required on the drawings.

2.04 TREATED WOOD

A. Treated Lumber and Plywood: Comply with requirements of AWPA V1- use category systems for wood treatments determined by use categories, expected service conditions and specific applications.

B. Preservative Treated Lumber

1. General

a. Lumber in contact with concrete or masonry, and at other locations required by Code shall be pressure treated in accordance with CBC 2303, using waterborne preservatives. Lumber shall be Douglas Fir No. 2 (or better). Cut faces of treated wood shall be brush treated (two complete applications) prior to installation.

b. Kiln dry to 15% moisture content after treatment, and stamp "DRY".

c. Each piece of wood shall be stamped by the wood preservative applicator to indicate and identify its treatment. Markings shall include minimum retention of preservative treatment as required in applicable UBC Standards for lumber and plywood.

2. Preservative Pressure Treatment of Lumber Above Grade: AWPA Use Category UC3B, Commodity Specification A (Treatment C2) using waterborne preservative to 0.25 lb/cu ft retention. Penetration of preservative shall conform to AWPA guidelines.

a. Kiln dry lumber after treatment to maximum moisture content of 15 percent.

b. Treat lumber in contact with roofing, flashing, or waterproofing.

c. Treat lumber in contact with masonry or concrete.

d. Treat wood less than 12 inches above grade or 6 inches above adjacent concrete paving or mowstrip.

1. Treated Lumber, Poles, Posts and Plywood: Comply with requirements of

AWPA U1 - Use Category System for wood treatments determined by use categories, expected service conditions, and specific applications.

2. Preservative Types: Either of the following;

a. Copper Azole (CA-B) per ICC-ES AC143.

b. Alkaline/Copper/Quaternary (ACQ).

C. Fire Retardant Treatment: Product and application process must be recommended by manufacturer of treatment as being suitable for painting.

Application shall be by a California State Fire Marshal approved licensed contractor.

1. Exterior Type: AWPA Use Category UCFB, Commodity Specification H (Treatment C20 for lumber and C27 for plywood), chemically treated and pressure impregnated; capable of providing a maximum flame spread rating of 25 when tested in accordance with ASTM E 84, with no evidence of significant combustion when test is extended for an additional 20 minutes both before and after accelerated weathering test performed in accordance with ASTM D 2898.

a. Kiln dry wood after treatment to a maximum moisture content of 19 percent for lumber and 15 percent for plywood.

b. Treat exposed exterior rough carpentry items, including stairways, balconies, and covered walkways

c. Do not use treated wood in direct contact with the ground.

2. Interior Type A: AWPA Use Category UCFA, Commodity Specification H (Treatment C20 for lumber and C27 for plywood), low temperature (low hygroscopic) type, chemically treated and pressure impregnated; capable of providing a maximum flame spread rating of 25 when tested in accordance with ASTM E 84, with no evidence of significant combustion when test is extended for an additional 20 minutes.

a. Kiln dry wood after treatment to a maximum moisture content of 19 percent for lumber and 15 percent for plywood.

b. Treat rough carpentry items as indicated.

c. Do not use treated wood in applications exposed to weather or where the wood may become wet.

2.05 FASTENERS AND ACCESSORIES

A. General requirements for fasteners:

1. Fasteners shall be of adequate size, spacing and number to resist design loads under intended use, and types shall be appropriate for the materials or conditions for which used.

2. Provide washers, pre-drilling, etc. required for proper installation.

3. Fasteners shall be hot-dip galvanized (ASTM 153), stainless steel, or silicon bronze or copper by approved methods for the following applications:

a. Exterior, exposed use.

b. In contact with preservative or fire-retarded treated wood.

1. Fasteners in moist corrosive atmosphere to be of stainless steel.

2. All fasteners specified by manufacturer shall be installed in framing hardware.

B. Nails and nailing not otherwise shown or specified:

1. Comply with requirements of governing building code.

2. For securing materials to hardened concrete or masonry: hardened steel masonry nails or Titen screws.

3. For framing and general woodwork: Common bright wire nails (not box nails) per ASTM F 1667. 16d cement coated sinker nails may be used in lieu of common nails for framing, unless noted otherwise on the drawings.

4. Nails for plywood shall be of common wire with full round heads and shall be of sufficient length to fully develop the nails.

5. Pneumatically driven nails of all types must comply with the requirements of this section. All proposed nails shall match diameter and penetration of specified nails.

6. Staples shall conform to length and gauges specified and shall be installed to match specified patterns and spacing.

7. Powder-actuated Fastenings: Use only as approved by the Contracting

Officer; operators shall be qualified.

C. Bolts: ASTM A-307 and ANSI B18.2.1, standard semi-finished machine bolts as shown or required. Malleable iron washers or steel plate washers, unless otherwise shown, shall be provided under all bolt heads and nuts.

1. Bolts in Concrete: Wedge or expansion anchors set after casting shall be Hilti

KB TZ 3, or Simpson Strong Bolt or Titan Screws.

2. Anchor bolts are to be formed from ASTM A36 Steel, or to be ASTM A307

Machine Bolts with standard head or plate washer in concrete. No upset threads allowed. No L or J bolts allowed. Other grades of steel materials as noted on the drawings. All bolts and washers in treated lumber exposed to weather or soil to be galvanized.

3. For contact with preservative or fire-retardant or exterior exposed use provide zinc coating in accordance with ASTM B695, Class 55 minimum.

D. Lag screws: Standard hex lag screws per ANSI B 18.2.1.

E. Wood screws: Standard wood screws per ANSI B 18.6.1.

F. Framing hardware: Fabricated sheet metal timber framing connectors shall be manufactured from painted or galvanized G90 steel by "Simpson Company", Dublin, CA; “USP Lumber Connectors“, Livermore, CA, or approved equivalent. Connectors shall be at least 16 gauge material, (1/8" plate materials where welded), unless otherwise noted, punched for nailing. All heavy hardware to be fabricated from A-36 steel per Division 5, Metals. All hardware intended for exterior exposed use shall be galvanized per G185 ASTM 653.

1. For contact with preservative or fire-retardant treated wood, provide minimum

G185 galvanizing per ASTM A 653/A 653M.

2. Nails and nailing shall conform to the manufacturer’s instructions with a nail provided for each punched hole. Nails to be used with framing accessories, subject to the requirements specified in this section for fasteners and anchors.

G. Subfloor Glue: Water proof, water base, air cure type, cartridge dispensed AFG 01.

PART 3 - EXECUTION

3.01 REQUIREMENTS FOR STRUCTURAL FRAMING

A. General

1. Refer to drawings for layouts, notes and details, provide framing as required; comply with governing building code requirements.

2. Provide framing to achieve true alignments as surfaces receiving finish materials.

3. It shall be the responsibility of the Contractor to provide and install all wood blocking, furring strips, or grounds detailed or required to provide anchorage for all finishes, accessories, fixtures, etc. as required to complete all work. All blocking and/or backing shall be securely bolted or otherwise anchored in place.

4. Contractor shall be responsible for layout of anchor bolts, and other hardware embedded in concrete when placed by other trades.

5. Provide and install all structural framing, blocking, fasteners, brackets, clips, etc. as required to complete work specified in the Construction Documents.

B. Framing

1. Sill Plates and Ledgers:

a. Sill plates and ledgers on concrete shall be anchored with bolts, shall have full bearing on concrete, and shall be placed for plywood nailing as indicated. All bolt nuts shall be provided with a cut plate steel washer for bearing on wood.

b. Provide a minimum of two sill anchor bolts per sill piece with a bolt no less than 4 1/2 "and no more than 9" from the end of the sill. Bolts to be 5/8" diameter x 10" long at 4' on centers, with unless otherwise shown or noted. Provide additional anchorage bolts where sill plates are cut, notched, or drilled in excess of 50% of the sill width each side of the notch or hole as per end of the sill at shear walls, provide a plate washer 3” x 3” x 0.229” between the sill and nut at anchor bolts..

c. Anchor bolt holes in sill plates or ledgers shall be 1/16" maximum larger than anchor bolt.

2. Stud Walls and Framing:

a. Cut studs and posts with square ends, unless otherwise shown or noted. All posts and beams shall be "cut to bear" unless otherwise detailed.

b. All studs in walls shall be placed with the shortest dimension parallel to the run of the wall. Bearing studs shall extend full height to be the supporting framing as shown; non-bearing studs shall extend to the supporting framing.

c. Provide double studs on each side of all openings, unless shown or noted otherwise.

d. All openings in stud walls and partitions shall be framed with headers across the top, as shown, with a minimum size (6" deep x stud width) resting on short cripple studs, and as shown on the drawings.

e. All stud partitions and walls shall have horizontal solid blocking not less than 2 x and of the same width as the stud, fitted and nailed into the studs at mid-height of stud, for studs over 8 feet in height, except as otherwise shown or specified. This blocking shall be so spaced that there shall be no concealed air spaces greater than eight feet in any dimension.

f. Stud partitions containing plumbing, heating or other pipes shall be so framed as to give proper clearance for piping. Plumbing, heating and vent pipes exceeding 1- 1/2" in inside diameter shall not be placed in partitions used as bearing or shear walls unless completely furred clear of the wall. No notching shall be allowed. Pipes shall be placed in the center of the plate using a neat bored hole and the plates shall be strapped on each side with 3" x 36" x 14 gauge steel punched for 10d nails 3" on center, staggered, or as shown on the drawings.

3. Top Plates

a. Top plates shall be double, set single. Corners where stud wall or partitions meet shall be framed with studs on all surfaces and blocking to form a "rigid" corner with nailing for all corners. Double top plates shall be lapped at corners. Lap splices and nailing per the drawings.

4. Floor, Roof and Ceiling Framing

a. Joists and beams shall be accurately aligned and the position and spacing of all joists and beams shall be as shown and be coordinated with other framing and to other trades prior to actual construction.

b. Place all joists and beams with crown up. Cantilevered joists and beams shall be placed with the crown down.

c. Cutting of wood girders, beams or joists for electrical and mechanical lines shall be limited to cuts and bored holes not deeper than 1/5 of the beam depth from the top and located not farther from the support than three times the beam depth and not less than the beam depth. Cuts in excess of this, or single bored holes with a diameter of more than 1" are not permitted without special provisions for framing the beams. Location of all cuts in framing shall receive the prior review of the Contracting Officer.

d. Provide vent holes in rafters and/or blocking as shown and/or directed by the Contracting Officer.

3.02 STRUCTURAL SHEATHING

A. General

1. Sheathing nailing shall be as required on the drawings. Do not overdrive (Do not break skin of sheathing face sheet). Over driving will be cause for rejection.

2. Form sheathing may be re-used for concealed sheathing provided the lumber at the time of re-use is approved by the Architect, meets with the framing grade requirements specified herein, is in good condition, and is thoroughly cleaned with all nails removed.

3. Pneumatic nailing devices shall be adjustable so that nail heads do not penetrate skin of sheathing. Contractor shall submit equipment and nails for review prior to use.

B. Roof and Floor Sheathing: Except "Panelized Roofs", lay with face grain perpendicular to roof rafters, roof trusses or floor joists. Stagger sheets. Block all unsupported sheet edges with 2x material unless noted otherwise.

C. Wall Sheathing: Lay with face grain either parallel or perpendicular to studs.

Exposed bottom edges shall be sealed as recommended by manufacturer. Block all unsupported sheet edges with 2x materials unless noted otherwise.

D. Panelized Roofs: Where sheathing is set @ 8'-0 1/8" spacing, cut every fourth sheet short by 1/2" to re-align structural framing that has been specified to be spaced at even units of 2, 4 or 8 feet.

3.03 ROUGH HARDWARE

A. General: Nails, spikes, screws, fabricated sheet metal anchors, ties, hangers and any other materials shown or required for the attachment of wood to concrete and wood to steel and wood to wood shall be furnished and installed as part of this work.

B. Framing Nailing: All framing nailing shall conform to minimum requirements of the Building Code, and with details shown on the drawing.

C. Bolts, Lag Screws and Washers:

1. Bolts in wood shall be machine bolts unless otherwise noted and shall be of such length that the bearing length of the threads does not exceed ¼ of the full bearing length in the member holding the threads. Bolt holes in wood shall be 1/32" oversized. Bolt holes for sill plates may be 1/16" maximum oversize. Holes in steel shall be 1/16" oversize. See Section 3.1 B.1.b for anchor bolts at sill plates and ledgers.

2. Provide square plate or malleable iron washer and nut at head where bearing is against wood; cut washer under nut where it is against steel. Washer will not be required under head of carriage bolts. Provide malleable iron washers where exposed.

3. All nuts shall be tightened when placed and retightened at completion of the job or immediately before closing with final construction.

4. Lag screws shall be screwed (not driven) into place. Drill holes same diameter and depth as shank, then drill pilot holes same diameter as at base of thread for the threaded portion.

3.04 INSTALLATION OF ACCESSORIES AND MISCELLANEOUS WOOD

A. Coordinate installation of wood decking, wood chord metal joists, glue laminated structural units, prefabricated wood trusses, and plywood web joists.

B. Curb roof openings except where prefabricated curbs are provided. Form corners by alternating lapping side members. Fasten curbs corner-to-corner and to rafters with framing connectors configured for this application.

C. Blocking:

1. Provide fire blocking at locations and spacings as required by CBC Chapter

7. Locate other blocking, supplementary framing, backing plates and bracing to facilitate installation of finish materials, fixtures, equipment, services, accessories and trim requiring attachment and support.

2. Solid block joists and rafters over all supports with blocking of the same size and material as the joist or rafter.

D. Furring:

1. Nominal 1 inch x 3 inch minimum, continuous and spaced at 16 inches on center, maximum.

2. Install plumb, rigid, and level. Shim where necessary to provide a true, even plane suitable to receive the finish required.

3. Attach to concrete and masonry.

E. Bridging: Use 2 inch solid cross bridging. Nail bottom ends of bridging only after sheathing has been nailed.

F. Stair Framing: Provide with 3 stair stringers for each set of stairs, unless otherwise shown. Cut notches to receive exact size of treads and risers (if any) shown, with no change in dimensions between landings. Provide stringers of size shown, or if not shown, of a size to allow not less than 3-1/2 inch of effective depth, measured perpendicular to the rake of the stringer, after notching.

G. Install miscellaneous metal angles, bolts and other items; secure into formwork where embedded in concrete.

H. Install accessory items not otherwise set under other sections; after completion of painting and other finishing work; in locations shown or directed by Contracting Officer. Set items plumb, level and secure using appropriate fastening as applicable.

3.05 FIELD APPLIED WOOD TREATMENT

A. Field treat all end cuts and holes in preservative treated materials per section 2.4.

B. Apply two brush coats; or fill-immersion dip not less than 15 minutes; or as required to thoroughly saturate all surfaces after cutting.

C. Air dry 2-hours minimum before installation.

3.06 TOLERANCES

A. Framing Members: 1/4 inch from true position, maximum.

B. Surface Flatness of Floor: 1/8 inch in 10 feet maximum, and 1/4 inch in 30 feet maximum.

C. Variation from Plane (Other than Floors): 1/8 inch in 10 feet maximum, and 1/4 inch in 30 feet maximum. Provide framed substrates meeting requirements for application of finishes specified in other sections.

D. Exposed surfaces shall be free from dents and tool marks, unsanded rough or torn faces and corners, and other defects.

3.07 ADJUSTING

A. Replace all defective work at Contractor's expense.

B. Replace defective or damaged work with conforming work.

C. Correct defects using means that will not injure the materials.

D. Replace defective or damaged work which cannot be corrected in the field with new work, or return defective items to the shop for repair.

E. Repair or replace framing lumber sagged, twisted or warped due to shrinkage from excessive moisture content at time of installation, or from other causes.

F. Adjust to meet specified tolerances.

G. Contracting Officer shall review all proposals for the repair or replacement of damaged, defective, or missing work.

H. Pay expenses incurred by Owner for Contracting Officers costs for (re-)design and obtaining approvals of Authorities Having Jurisdiction (AHJ) necessitated by incomplete, inefficiently scheduled, improperly performed, defective or nonconforming work.

I. Pay expenses due to re-testing and re-inspection necessitated by incomplete, inefficiently scheduled, improperly performed, defective or nonconforming work.

3.08 CLEANING AND PROTECTION

A. Clean all surfaces upon completion of erection, leave free of grime and dirt.

Remove unused materials, tools, equipment and debris from the premises and leave surfaces broomed clean.

B. Waste Disposal: Comply with the requirements of pertinent sections of Division 01 specifying cleaning and disposal.

1. Comply with applicable regulations.

2. Do not burn scrap on project site.

3. Do not burn scraps that have been pressure treated.

4. Do not send materials treated with pentachlorophenol, CCA, or ACA to co-generation facilities or “waste-to-energy” facilities.

C. Do not leave any wood, shavings, sawdust, etc. on the ground or buried in fill.

D. Prevent sawdust and wood shavings from entering the storm drainage system.

E. Protect work from damage by subsequent operations.

061000 – Rough Carpentry.

END OF SECTION 061000

SECTION 062000

FINISH CARPENTRY

PART 1 - GENERAL

1.01 SUMMARY

A. Section Includes: Provide finish carpentry with accessories as required for complete installation. .

1. Provide exterior wood siding

2. Provide exterior and interior wood trim.

3. Provide finish wood components for complete repair of existing damage.

B. Related Sections:

1. Section 061000: Rough Carpentry.

1.02 REFERENCES

A. Architectural Woodwork Standards (AWS), Edition 1, 2009.

1.03 SUBMITTALS

A. Product Data: Submit literature for manufactured items.

B. Shop Drawings: Indicate materials and wood species, component profiles, fastening, and joining details, finishes, and accessories.

C. Samples: Furnish samples of each type of finish carpentry.

D. Certificates:

1. Assurance Options: AWS certification and monitored compliance programs will not be required for finish carpentry.

1.04 DELIVERY, STORAGE, AND HANDLING

A. Do not deliver materials until site conditions are adequate to receive work;

protect items from weather while in transit.

B. Store materials indoors, in ventilated areas with constant but minimum temperature of 60 degrees F and maximum relative humidity of 25% to 55%.

C. Do not begin installation of interior finish carpentry until space is fully enclosed and space is heated.

1. Maintain interior installation areas at 70 degrees F and 50% to 55% relative humidity.

D. Immediately remove from site materials with visible mold and materials with mildew.

PART 2 - PRODUCTS

2.01 MATERIALS

A. System Description: Provide finish carpentry systems specified complying with Architectural Woodwork Standards (AWS) and including accessories as required for complete installation.

B. Opaque Painted Exterior Siding and Wood Trim:

1. Quality: AWS/Custom Grade.

2. Wood: Clear Western Red Cedar acceptable.

3. Cut: Mixed Grain.

4. Texture: Surfaced.

C. Opaque Painted Interior Wood Trim:

1. Quality: AWS/Custom Grade.

2. Wood: Pine, Spruce or Fir.

3. Texture: Surfaced.

D. Wood Filler: Color to match wood being filled.

E. Volatile Organic Compound (VOC) Emissions: Select materials that generate least amount of pollution; consider pollution and volatile organic compound (VOC) emissions generated during manufacturing, transport, installation, use, and disposal.

1. Use adhesives, sealants, coatings, fillers, and sealers complying with low or no volatile organic compound emissions, no added formaldehyde, and no toxic materials as defined by applicable codes and regulations.

2. Avoid materials that contain ozone depleting chemicals and that emit potentially harmful volatile organic compound (VOC) emissions.

3. Avoid materials that can leach harmful chemicals into ground water; do not allow potentially harmful chemicals to enter sewers nor storm drains.

4. Select materials that can be reused or recycled and materials with significant percentage of recycled content; set specific recycled content percentages for individual materials; avoid materials difficult to recycle.

2.02 FABRICATION

A. Fabricate finish carpentry items in accordance with specified quality standard.

B. Use exposed fastening devices or nails only when approved and unavoidable; arrange neatly.

PART 3 - EXECUTION

3.01 EXAMINATION

A. Field Measurements: Take field measurements prior to preparation of shop drawings and fabrication where possible; do not delay job progress, allow for trimming and fitting.

B. Verify surfaces are ready to receive work and field measurements are as shown on shop drawings.

1. Beginning installation signifies acceptance of conditions. Ensure mechanical and electrical items affecting work are properly placed, complete, and have been inspected by applicable authorities prior to commencement of installation.

C. Inspect each piece of finish carpentry and discard damaged and defective pieces.

3.02 INSTALLATION

A. Install work consistent with specified AWS quality grade, plumb, level, true and straight with no distortions; shim as required, using concealed shims.

1. Prime paint surfaces in contact with cementitious materials prior to installation; comply with requirements of Section 099000 – Painting and Coating.

B. Secure work to blocking with countersunk, concealed fasteners and blind nailing as required for a complete installation.

C. Scribe and cut for accurate fit to other finished work.

D. Install trim in single, unjointed lengths for openings and for runs less than 10'-0".

1. For longer runs, use only one piece less than 10'-0" in any straight run;

provide scarf joints between members.

2. Stagger joints in adjacent members.

3. Cope at returns and miter at corners.

E. Accessories: Install accessories in accordance with manufacturer's recommendations in locations indicated or as directed by Owner.

F. Acceptable Tolerances:

1. Variation from True Position: Maximum 1/16" at any position and maximum 1/8" in any 10'-0" length.

2. Adjoining Surfaces of Same Material: No variation permitted.

3. Offset with Abutting Materials: Maximum 1/32".

G. Preparation for Field Finishing:

1. Sand work smooth and set exposed nails and screws.

2. Apply wood filler in exposed nail and screw indentations and leave ready to receive site-applied finishes.

3. Seal concealed and semi-concealed surfaces; brush apply only, using primer consistent with finish coats specified under Section 09 90 00 – Painting and Coating.

062000 – Finish Carpentry.

END OF SECTION 062000

SECTION 072100

BUILDING INSULATION

1.01 SCOPE

A. This work consists of providing wall insulation as indicated.

B. Applications of insulation specified in this section include the following:

1. Building insulation in batt form.

C. Related Sections: The following sections contain requirements that relate to this section:

1. Division 9 Section installed as part of wood stud wall and partition assemblies: Section 092100 – Gypsum Board Assemblies.

1.02 DEFINITIONS

A. Thermal Resistivity: Where the thermal resistivity of insulation products is designated by "R-values," they represent the reciprocal of thermal conductivity (k-values). Thermal conductivity is the rate of heat flow through a homogenous material exactly 1 inch thick. Thermal resistivity is expressed by the temperature difference in degrees F between the two exposed faces required to cause one BTU to flow through one square foot per hour at mean temperatures indicated.

1.03 QUALITY ASSURANCE

A. Fire Performance Characteristics: Provide insulation materials identical to those whose indicated fire performance characteristics have been determined per the ASTM test method indicated below, by UL or other testing and inspecting organizations acceptable to authorities having jurisdiction. Identify products with appropriate markings of applicable testing and inspecting organization.

1. Surface Burning Characteristic: ASTM E 84.

2. Fire Resistance Ratings: ASTM E 119.

3. Combustion Characteristics: ASTM E 136.

C. Single-Source Responsibility for Insulation Products: Obtain each type of building insulation from a single source with resources to provide products of consistent quality in appearance and physical properties without delaying progress of the Work.

1.04 DELIVERY, STORAGE, AND HANDLING

A. General Protection: Protect insulation materials from physical damage and from deterioration by moisture, soiling, and other sources. Store inside and in a dry location. Comply with manufacturer's recommendations for handling, storage, and protection during installation.

2.01 ACCEPTABLE MANUFACTURERS

A. Subject to compliance with requirements, manufacturers offering insulation products that may be incorporated in the work include, but are not limited to, the following:

1. Manufacturers of Glass Fiber Insulation:

a. CertainTeed Corp.

b. Manville: Building Insulations Div., Manville Sales Corp.

c. Owens/Corning Fiberglas Corp or approved equal.

B. R-Value: Not less than R-13 at walls.

2.02 INSULATING MATERIALS

A. General: Provide insulating materials that comply with requirements and with referenced standards.

1. Preformed Units: Sizes to fit applications indicated, selected from manufacturer's standard thicknesses, widths, and lengths.

B. Unfaced Mineral Fiber Blanket/Batt Insulation: To be located at interior walls at bathrooms.