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Historic Preservation - Technical Procedures |
Spectitle: | Replacement Of Damaged Wood Doors |
Procedure code: | 0821003R |
Source: | National Capitol Region Specifications - Fed Trade Commiss |
Division: | Doors And Windows |
Section: | Wood Doors |
Last Modified: | 02/24/2012 |
Details: | Replacement Of Damaged Wood Doors REPLACEMENT OF DAMAGED WOOD DOORS PART 1---GENERAL 1.01 SUMMARY A. This procedure includes guidance on the removal and replacement of deteriorated or damaged wood doors with new to match original historic doors. It also includes the removal, storage and reinstallation of original door hardware. B. See 01100-07-S for general project guidelines to be reviewed along with this procedure. These guidelines cover the following sections: 1. Safety Precautions 2. Historic Structures Precaution= s 3. Submittals 4. Quality Assurance 5. Delivery, Storage and Handling= 6. Project/Site Conditions 7. Sequencing and Scheduling 8. General Protection (Surface and Surrounding) These guidelines should be reviewed prior to performing this procedure and should be followed, when applicable, along with recommendations from the Regional Historic Preservation Officer (RHPO). 1.02 REFERENCES A. Architectural Woodwork Institute (AWI), 13924 Braddock Rd., Centerville, VA 22020, 703/22= 2-1100 (National Office). 1.03 SYSTEM DESCRIPTION A. Performance Requirements: 1. AWI Quality Standards of Archi= tectural Woodwork Institute. 2. Take all required field measur= ements and verify installation conditions for work. 1.04 SUBMITTALS A. Shop Drawings: 1. Indicate general construction, jointing methods, hardware locations and cut-outs for glazing and vents. 2. Indicate opening identifying symbol (room number), sizes, door type and grade, and show elevation, swing, light and grill cut-out sizes, locations and undercuts. B. Samples: 1. Submit sectional sample of door construction indicating grade and species. 2. Submit sample of stain and finish for approval of Contracting Officer. 1.05 PROJECT/SITE CONDITIONS: A. Field Measurements: Take all required field measur= ements and verify installation conditions for work of this section. PART 2---PRODUCTS 2.01 MATERIALS A. Wood doors, premium grade, to match existing speci= es face and edge grain. 2.02 FABRICATION A. Moisture content shall be 12% maximum at time of fabrication for all wood material. B. Fabricate doors in accordance with requirements of AWI Quality Standards to match existing in construction and quality. C. Allowable Tolerances for Fabrications of Doors: 1. Size: Plus or minus 1/16" overall dimensions. 2. Maximum warp: 1/4" 3. Squareness: Length of diagonal measured on face of door from upper right corner to lower left corner between length of diagonal measured on upper left corner to lower right corner - maximum difference of 1/4". 4. Factory finish thickness: Minimum 1 mil., cured. 5. Show-through (photographing): 1/100" deviation from true plane in any 3" span on door face. D. Provide doors with minimum 1/2" thick edge strips. E. Make cut-outs and provide stops for glass in origi= nal locations using profiles matching the original. F. Bevel strike edge of single acting doors 1/8" (3 mm) in 2" (51 mm). G. Strike doors to receive hardware. Hardware locations to match its location on original doors. PART 3---EXECUTION 3.01 PREPARATION A. Protection: Remove all non-original door louvers, panels and transom panels taking care not to damage the remainder of the door, frame or paneling= . B. Replace the non-original elements with new wood which matches the species of the original wood and which matches the detailing of the original millwork. 3.02 ERECTION, INSTALLATION, APPLICATION A. Carefully remove existing damaged and altered doors to be replaced and label with location. B. Remove all hardware from doors and store. New non- compatible hardware should be discarded and replaced with hardware matching the original. C. Remove all glazing and vents and restore to origin= al condition. D. Fitting and Machining: 1. Fit doors for width by planing; for height by sawing. a. =AB" maxim= um from bottom. b. 1/8" maxim= um from top. c. Bevel lock and hinge edges, 1/8" to 2". 2. Machine doors for Hardware. 3. Cut doors for glazing and vents. Cuts in replacement doors shall match size and location of openings cut in original doors. 4. Refinish all job site cut surfaces before final hanging of doors. S= ee 08210-07-R for guidance on refinishing wood doors. E. Install doors in accordance with requirements of AWI Standard and as indicated. 1. Clearances: a. Allow maximum of 1/8" at jamb and head for fit doors= . b. Allow maximum of 3/16" over threshold or saddl= e. c. Allow maximum of =AB" over decorative floor cover= ings. 2. Install, using original hardwa= re in original locations. Replace any damaged, incompatible, or missing hardware with that which is as close as possible to original. 3. Install original glazing and vents in original locations. 3.03 ADJUSTING/CLEANING A. Replace or rehang doors which are hinge bound and do not swing or operate freely. B. Refinish or replace job-finished doors damaged during installation. END OF SECTION |