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Chapin Park Local Historic District Recommended Guidebook Wood storm windows and doors painted or finished to match the original should be used but should not damage existing frames. If new sashes or doors are installed, the existing or original materials, design and hardware should be used. When metal storm doors are used, they should be painted, anodized or coated to match the existing. When awnings are used, they should be of can- vas material. Piohibited Original doors, windows and hardware shall not be discarded when they can be restored and reused in place. New window and door open- ings, which would alter the scale and propor- tion of the building may not be introduced. Inappropriate new window and door features such as metal, vinyl or fiberglass awnings, hoods or aluminum insulating glass combina- tions that require removal of original windows and doors, shall not be installed. Not Recommended Fake shutters that would detract from the existing character or appearance of the building should not be used. Figure 9. Appropriate types of weatherstripping for metal windows. Weatherstripping is an important part of upgrading the thermal efficiency of historic steel windows. The chart at right shows the jamb section of the window with the weatherstripping in place. Drawings: Sharon C. Park, AIA -zTEMcols. A ACRYLIC MELS p ytx� *imp 46NEM INTEMIM JWMV INTERIM Fi&ure 8. Two examples of adding a second layer of glazin in order to improve the thermal performance of historic steel windgiws. Drawing: Sharon C. Park, AIA Spring -metal ExTrmlon Spring -metal comes in bronze, brass or 9AMNstainless steel with an integral friction -fit y clip. The weatherstripping is applied after FMME Z the repaired windows are painted to avoid galvanic corrosion. This type of thin weath- erstripping is intended -for windows in good condition. WEATHFWAtr Vinyl Strips ExTEMiori Vinyl strips are scored and folded into a "V' configuration. Applied adhesive is necessary which will increase the thickness of the weatherstripping, making it inap- FriAMC propriate for some situations. The weather- strip king is generally applied to the r—wmTNr/witr widow after painting. Foam Tape ExTEM10A 'Lu�anler�xn�r Sealant Bead ExTEMilori ykiHI? FMMC L Q,�uFanl crsnn�r Page 75 Closed cell foam tape comes either with or without an adhesive backing. It is effective for windows with a pap of a proximately 1 /4" and is easy to install. I�owever, this type of weatherstripping will need frequent replacement on windows .in regular use. The metal sections should be cleaned of all dirt and grease prior to its application. This very effective type of weatherstrip- ping involves the application of a clean bead of firm -setting caulk on the primed frame with a polyethylene bond breaker tape on the operable sash. The window is then closed until the bead has set and takes the form of the gap. The sash is then opened and the tape is removed leaving the set caulk as the weatherstripping.