ADDENDUM NO. 3 Project: Quarry Hill Nature Center – Interior Modifications for Exhibits Armon Architecture Project No. 2016‐068 Owner: City of Rochester Issue for Bids: February 6, 2017 Bid due date: March 1, 2017 at 11:00 am Bids Received By: City Clerk 201 4th Street SE, Room 135 Rochester, MN 55904 Addenda / Date Issued: Addendum No. 1 – 02/22/2017 Addendum No. 2 – 02/24/2017 Addendum No. 3 – 02/27/2017 Acknowledge receipt of this Addendum by inserting its number on the Bid Form. This Addendum forms a part of the Contract Documents. The Specifications, Contract Documents, and Contract Drawings prepared for this project are hereby modified, amended, or clarified by the following: ITEMS No. Reference Description 1 06 10 00 “Rough FSC Certified wood is not required in this project. Carpentry” Attachments: 06 10 00 Rough Carpentry END OF ADDENDUM NO. 3 Page 1 of 1 SECTION 06 10 00 ROUGH CARPENTRY PART 1 GENERAL 1.01 SUMMARY A. Provide: 1. Dimension lumber. 2. Boards. 3. Miscellaneous lumber. 4. Engineered wood products: a. Composite wood headers. b. Prefabricated wood I-Joists. 5. Plywood: a. Plywood backing panels. b. Roof sheathing. c. Wall sheathing. d. Subfloor. e. Underlayment. 6. Particle board underlayment. 7. Oriented strand board: a. Subfloor. b. Sheathing. 8. Gypsum sheathing. 9. Fiber board: a. Sheathing. 10. Wood treatment: a. Pressure preservative. b. Fire-retardant. 11. Rough carpentry accessories including, but not limited to: a. Framing anchors and fasteners. b. Sill sealer. c. Air infiltration barrier. d. Building paper. B. Perform the following: 1. Modify existing carpentry construction for new work. C. Related Sections: 1. Section 06 17 33- Wood I-Joists 2. Section 06 20 00 - Finish Carpentry 3. Section 06 40 23 - Interior Architectural Woodwork 4. Section 07 21 00 - Thermal Insulation 5. Section 09 22 00 - Non-Structural Metal Framing 6. Section 09 29 00 - Gypsum Board 1.02 REFERENCES A. ANSI: 1. A194 - Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature 2. A208.1 - Mat-formed Wood Particle Board B. ASTM: 1. A153 - Zinc Coating, Hot Dip, on Iron and Steel Hardware 2. C585 - Inner and Outer Diameters of Rigid Thermal Insulation for Pipe and Tubing Rough Carpentry ARMON 140034 06 10 00 - 1 3. C1177 - Glass Mat Gypsum Substrate Sheathing 4. C1396 - Gypsum Board 5. D226 - Asphalt Saturated Organic Felt Used in Roofing and Waterproofing 6. E84 - Surface Burning Characteristics 7. E96 - Test for Water Vapor Transmission 8. E1677 - Air Retarder Material or System for Low Rise Framed Building Walls C. AWPA U1 - Preservative Treatment by Pressure Process D. Engineered Wood Association (APA): 1. E30 - Design/Construction Guide - Residential and Commercial 2. E445 - Performance Standard and Policies for Structural-use Panels E. Military Specification MIL-L-19140E - Lumber and Plywood, Fire Retardant Treated F. NFPA: 1. Recommended Nailing Schedule 2. Manual for Wood Frame Construction 3. National Design Specifications for Wood Construction 4. Surface Burning Characteristics of Building Materials G. UL 723 - Surface Burning Characteristics of Building Materials H. U.S. Department of Commerce (DOC) National Institute of Standards and Technology: 1. PS 1 - U.S. Product Standard for Construction and Industrial Plywood 2. PS 20 - American Softwood Lumber Standard 1.03 DEFINITIONS A. FRT: Fire-retardant treated wood B. Mil Spec: Military Specification C. NDS: National Design Specifications D. PT: Pressure treated 1.04 INSPECTION AGENCIES A. NLGA: National Lumber Grades Authority B. SPIB: Southern Pine Inspection Bureau C. WCLIB: West Coast Lumber Inspection Bureau D. WWPA: Western Wood Products Association 1.05 SUBMITTALS A. Product Data: 1. For construction adhesive, including printed statement of VOC content. 2. For each composite wood product used indicating that bonding agent used contains no urea formaldehyde. 3. Wood Treatment Data: Chemical treatment manufacturer’s instructions for handling, storing, installation, finishing. Rough Carpentry 06 10 00 - 2 ARMON 140034 B. Certificates: 1. Preservative Treatment: Treatment plant certification stating type of preservative solution and pressure process used, net amount of preservative retained, conformance with applicable standards. 2. Waterborne Treatment: Statement that moisture content was reduced to levels indicated prior to shipment to Site. 3. Fire-Retardant Treatment: Treatment plant certification that treatment material complies with specified standards and other requirements. 4. For wood members treated with FRT chemicals, NDS for Wood Construction Section 2.3.4 requires submittal of design values, including connections, from the company providing the treatment and redrying service. 5. Submit organic chemical formulation, third party inspected, ICBO and NER report, EPA registered as a preservative, with a builder’s warranty. C. Wood Treatment Data: Chemical treatment manufacturer’s instructions for handling, storing, installation, finishing. 1.06 QUALITY ASSURANCE A. Corrosion of steel is an issue when in contact with preservative-treated wood at high moisture content levels. For FRT wood, the company providing the treatment should be contacted. B. Research/Evaluation Reports: Show compliance of following with building code in effect for Project: 1. Preservative-treated wood. 2. Fire-retardant-treated wood. 3. Engineered wood products. 4. Foam-plastic sheathing. 5. Power-driven fasteners. 6. Powder-actuated fasteners. 7. Expansion anchors. 8. Metal framing anchors. 9. Air infiltration barrier building wrap. 1.07 DELIVERY, STORAGE, AND HANDLING A. Storage: 1. Keep covered, dry. 2. Protect against exposure to weather, contact with damp or wet surfaces. 3. Stack lumber, plywood, and other panels; provide for air circulation within and around stacks, under temporary coverings including polyethylene and similar material. 4. For lumber and plywood pressure treated with waterborne chemicals, sticker between each course to provide air circulation. 1.08 PROJECT CONDITIONS A. Drawings do not purport to show actual field dimensions, but are intended only to establish location and scope of Work. Field-verify dimensions and assume full responsibility for their accuracy. PART 2 PRODUCTS 2.01 MANUFACTURERS A. Gypsum Sheathing: Subject to compliance with specified requirements, acceptable manufacturers and products are: 1. Domtar Gypsum 2. Georgia-Pacific, Atlanta, GA 3. National Gypsum Company; Gold Bond Building Products Division 4. United States Gypsum, Chicago, IL Rough Carpentry ARMON 140034 06 10 00 - 3 5. Manufacturer of comparable products submitted in compliance with Section 01 25 13. B. Glass Fibered Surfaced Gypsum Sheathing: Subject to compliance with specified requirements, acceptable manufacturers and products are: 1. Georgia-Pacific, Atlanta, GA 2. United States Gypsum, Chicago, IL 3. Manufacturer of comparable products submitted in compliance with Section 01 25 13. C. Fiberboard Underlayment: Subject to compliance with specified requirements, acceptable manufacturers and products are: 1. Flakeboard www.blakeboard.com 2. SoundStop by Celotex www.knightcelotex.com 3. Manufacturer of comparable products submitted in compliance with Section 01 25 13. D. Recycled Fiber Particleboard: Subject to compliance with specified requirements, acceptable manufacturers and products are: 1. Encore by SierraPine www.sierrapine.com 2. Manufacturer of comparable products submitted in compliance with Section 01 25 13. E. Air Infiltration Barrier Building Wrap: Subject to compliance with specified requirements, acceptable manufacturers and products are: 1. DuPont Company; Fibers Department, Wilmington, DE 2. Raven Industries, Inc., Sioux Falls, SD 3. WrapShield by VaproShield, Gig Harbor, WA www.vaproshield.com 4. Manufacturer of comparable products submitted in compliance with Section 01 25 13. F. FSC Certified Wood Products: Subject to compliance with specified requirements, acceptable manufacturers and products are: 1. Certified Wood Products, Minnetonka and Maple Lake, MN www.certifiedwoodproducts.net 2. Aitkin Hardwoods, Aitkin, MN www.aitkinhardwoods.com 3. Other Minnesota providers: Upper Mississippi Certified Group (UMCG) 4. Other states: www.fscus.org/certified_companies 5. Manufacturer of comparable products submitted in compliance with Section 01 25 13. 2.02 MATERIALS A. Lumber, General: 1. Lumber Standards: Manufacture lumber to comply with DOC PS 20, applicable grading rules of referenced inspection agencies certified by ALSC Board of Review. 2. Grade Stamps: Factory-mark each piece with grade stamp of inspection agency evidencing compliance with grading rule requirements, grading agency, grade, species, moisture content at time of surfacing, and mill. 3. Nominal Sizes: a. As indicated, except as shown by detail dimensions. b. Actual sizes required by PS 20, moisture content specified for each use. c. Dressed lumber, S4S, unless otherwise indicated. d. Seasoned lumber with 19 percent maximum moisture content at time of dressing and shipment for sizes 2 inches or less nominal thickness, unless otherwise indicated. B. Dimension Lumber: 1. Structural Framing: Spruce-Pine-Fir, No. 2 or as noted on Drawings; 2 inches to 4 inches thick, 2 inches or wider. 2. Stud Framing: “Stud” grade lumber, Spruce-Pine-Fir, 2 inches to 4 inches thick, 2 inches to 6 inches wide, 10 feet and shorter. 3. Other Light Framing: “Construction” grade lumber, 2 inches to 4 inches thick, 2 inches or wider, any suitable species. Rough Carpentry 06 10 00 - 4 ARMON 140034 C.