nc north carolina replacement windows | ||||
| ||||
|
frames and sash corners, integral 1 1/4-inch nailing fins, 7/8-inch insulating glass, dual weather stripping, and full screens with fiberglass mesh. Optional nc north carolina replacement windows grilles, extension jambs, brickmold, j-channels, and mull covers and clips also are available. weather shield introduces new warranty. the "20/20 weather shield warranty" on certain lines of north and carolina vinyl and wood windows guarantees that the frame, sash and glass on those windows replacement will be free from defects in materials and workmanship for two decades after the purchase. during the first 10 years, the warranty covers the entire cost of parts or replacement windows units excluding nc labor. during the second 10-year period, weather shield will offer replacement parts at half price. built in 1942 as wartime rental housing, mclean north gardens is a condominium community of 720 units. brick exteriors, slate roofs, and lots of open space around carolina the buildings give it a college campus feel, and it has become a favored location for singles and smaller families in washington. windows are a major source of repair requests and comfort complaints, replacement however, and the condominium board windows is considering improvement options, including outright window replacement. ile nc the rest were replaced during condo conversion in about 1981 with new single-glazed sash in north and carolina aluminum jamb liners. nearly all the windows of both types are fitted with operable exterior aluminum storms with replacement screens.our planned approach windows to estimating energy use before and after window replacement was straightforward. we would get manufacturers nc specs and/or standard reference values for the conductive, solar transmission, and air leakage characteristics of old and new windows; then use energy simulation software to crunch the numbers for several typical residential units; and extrapolate the results across the entire community. the key question was how much effort to allocate to each step to get the best results. the largest unknown in the whole process seemed north to be the air leakage characteristics carolina of the existing windows. the windows were clearly pretty leaky, and replacement we knew windows that air leakage would be an important factor in energy use, so we nc decided to test a sample of windows.air flow north measurementour carolina air flow measurement apparatus included a sheet of replacement clear acrylic designed to fit over the window to be tested, and taped in place to create an airtight chamber. (we had four of these sheets windows cut to fit different-sized windows.) a fan was connected with rigid pvc nc pipe and flexible tubing to a fitting in the acrylic, north allowing depressurization carolina of the inside surface of the window. measurement replacement of the pressure drop across an orifice windows in ©2003 www.replacement-windows-guide.com. All rights reserved. |