SECTION NEW WOOD WINDOWS. 1. Section Wood Window Restoration. 2. Section Painting.

Size: px
Start display at page:

Download "SECTION NEW WOOD WINDOWS. 1. Section Wood Window Restoration. 2. Section Painting."

Transcription

1 SECTION NEW WOOD WINDOWS PART 1 - GENERAL 1.1 SUMMARY A. Provide new wood double hung, casement and awning windows and frames, complete, as shown and specified. 1. The new windows and frames shall match the appearance of the existing double hung, on the building. B. Related Sections: 1.2 REFERENCES 1. Section Wood Window Restoration 2. Section Painting. A. Standards: Comply with the following standards for fabrication and installation. 1.3 SUBMITTALS 1. National Wood Window and Door Association (NWWDA) I.S.2. Industry Standard for Wood Window Units. 2. NWWDA IS.4. INDUSTRY Standard for Water-Repellent Preservative Treatment for Millwork. 3. ASTM E1105. Standard Method for Field Measurement of Water Penetration through Installed Exterior Windows and Doors. A. Product Data: Submit product data on each manufactured product specified and proposed to be furnished. Include window hardware, operating mechanism, weathersptripping, sealant, wood preservative treatment and primer. B. Shop Drawings: Submit shop drawings for fabrication and installation of new wood windows. Include dimensioned elevations and sections as well as full size details of all typical members and joinery. Show hardware and relationship to adjoining work. C. Samples:

2 1. Submit samples of corner and operating sash complete with glass, 10"x10" size. 2. Submit complete sets of operating hardware and weatherstrip. 1.4 QUALITY ASSURANCE A. The Quality Standards, latest edition of the Architectural Woodwork Institute, Section 1000, apply to the work of this Section. Provide Premium Grade work as defined in the above referenced standard for all wood window work. Where conflicts occur between these standards and this specification, the more stringent requirement governs in each case. B. NWWDA Standard I.S.2-87: Provides new windows meeting the requirements for Grade 40 windows. C. Manufacturer s Qualifications: Engaged in the manufacturing, sales, and services of wood windows for minimum five (5) years. D. Installer s Qualifications: Regularly engaged in the installation of wood windows for minimum five (5) years. E. Field Mock-up and Installation: 1. After approval of all submittals and prior to fabrication of the windows for the Project, fabricate and install one complete window unit of each type on the building. 2. The unit shall be constructed, installed and finished as if it is the final product. The Architect will review the construction and installation for compliance with the Contract Documents. Contractor shall correct all deficiencies and adjust the product and installation as required by the Architect at no additional cost. 3. The accepted installation shall be left in place and shall serve as the standard for the work. 1.5 PRODUCT DELIVERY, STORAGE AND HANDLING A. Wood Window Components: Keep all materials and fabricated items dry and protected from damage, soiling, and deterioration. 1.6 SITE CONDITIONS

3 A. Field Measurement: Make all field measurements as required prior to fabrication and installation. B. Coordination: Coordinate work with other trades to ensure proper sequencing and fitting of construction. 1.7 WARRANTY A. Warrant for a period of five years from the date of Project Completion that the wood window, frame, glazing, and the accessory components shall be free of defects in material and workmanship and that it will not leak water, wear, rot or deteriorate excessively, or otherwise fail to perform as required. B. In accordance with the Contract Documents, locate and repair the defective workmanship, replace the defective material, and remove and replace with work which has been superimposed on the window to be repaired or replaced. Also repair or replace all portions of the building damaged by the defect or repair of it. C. Submit written warranty. PART 2-PRODUCTS 2.1 MATERIALS A. Custom designed windows to match existing original windows. B. Wood Sash and Frame: 1. Frame: Wood for repairs: AWI Premium Grade, certified kiln dried Douglas Fir, preservative treated, for paint finish. 2. Sash: Wood for repairs: AWI Premium Grade, certified kiln Douglas Fir, preservative treated, for paint finish or better. 3. Wood shall bear the grade and trademark of the association and under whose rules it is produced and a mark of mill identification. 4. Wood shall be thoroughly seasoned, kiln-dried to a moisture content not exceeding 12%. 5. Woodwork shall be free from defects or blemishes that will show on surfaces exposed after the finish coat of paint is applied. Any material which is in any way defective or fails to meet specifications for quality

4 C. Hardware and grade, or is otherwise not in proper condition, will be rejected. Finger jointing of running pieces are not acceptable. 1. Match sash locks, lifts or pulls to existing. 2. Balancing System: a. Cast iron weight: as required to balance sash. b. Pulleys: New or salvage to match existing. For existing or salvage pulley, sand corrosion from face of pulley plate and oil surface and pulley shaft. c. Ropes: Cotton rope with nylon center. 3. Weatherstrip. Interlocking bronze type. D. Glazing: 3/16" - thick clear float glass complying with Section glazing for material, performance and installation. Glazing compound shall be DAP 33, or equal. Or: E. Tempered glass at locations shown on the drawings F. Adhesive and Fasteners: 1. All fasteners shall be solid bronze. 2. Adhesive shall be non-staining waterproof glue as made by 3M Co., PPG Borden Co., or equal for exterior woodwork. G. Wood Preservatives: Olympic Wood Preservatives, clear, by Olympic Stains, One PPG Place, Pittsburgh, PA 15272; or equal. H. Sealant: Sikaflex 1a, premium-grade, high performance, moisture cured, 1 component, polyurethane base, non sag, elastomeric sealant. FS TT-S-0023OC, type 2, Class A. Distributed by Sika, San Diego, CA (619) ; or equal. 2.2 FABRICATION A. Fabricate sash and frame to comply with AWI Section 1000, Premium Grade, and to meet the performance requirements of NWWDA Standard IS.2-87 for Grade 40 windows. B. Fabricate to design, dimension, details and operation in accordance with approved shop drawings and mock-up.

5 C. Fabricate corners and intersections of sash and frame mortised and permanently sealed to prevent water and air leakage. D. Treat all new wood components with the specified wood preservative treatment containing an accepted formulation of IPBC (Iodo-Propynyl-Butyl_Carbamate) as an active ingredient. E. Fabricate sash to operate easily and smoothly. PART 3 EXECUTION 3.1 PREPARATION A. Verify dimensions of supporting structure at the project site by accurate field measurements so that all work will be accurately designed, fabricated and fitted to the structure. B. Coordinate window work with the work of other sections and provide items to be placed during the installation of other work at the proper time to avoid delays in the work. Place such items, including inserts and anchors, accurately in relation to the final location of window components. C. Remove all necessary portions of the existing wall. D. Examine the substrates of adjoining construction and the conditions under which the work is to be installed. Do not proceed with the work until unsatisfactory conditions detrimental to the proper and timely completion of the work have been corrected. E. Protect all work and materials, both new and existing, from damage. Any damage or repair to the exterior made necessary by removal of existing wall shall be reported to the Architect at once. 3.2 INSTALLATION A. Erect all component parts of the windows in accordance with the manufacturer s instructions and recommendations, unless otherwise indicated or specified. B. The sash shall not be altered in the field without the authorization of the Architect. C. Do not erect members which are warped, bowed, deformed or otherwise damaged or defaced to such extent as to impair strength or appearance, including exterior

6 finish. Remove and replace window units damaged during the process of erection, including exterior finish, as directed by Architect. D. Set units level, plumb, and true to line, with uniform joints. Support head, jamb and sill on shims of material approved by the Architect, and secure in place by fastening to supporting structure. Use only the types of equipment, ropes, wedges, spacers, shims and other items during erection which will not stain or mar the finish units. E. All assembled window unit materials shall be properly back sealed, buttered where it is required, and property fastened before erection. The Architect reserves the right to determine whether the materials are satisfactorily sealed during installation. F. Provide all materials fully processed, profit, predrilled, etc., and the unit when assembled, shall fit the openings so as not to require any cutting, ripping, or fitting on the job site. G. All fasteners of windows in adjacent building elements shall be designed and installed to withstand the specified performance standards. H. Prime and paint sash and frame as specified in Section Painting. 3.3 FIELD QUALITY CONTROL A. Conduct field check (test) of wood windows for water leakage in accordance with procedures set forth in AAMA B. Conduct field check of window frames simultaneously with field check of glazing; refer to Section for supplementary requirements. 3.4 CLEANING A. Wash clean window assembly prior to Substantial Completion. END OF SECTION