Replacing windows in Fayetteville
Window choices in Fayetteville have to work in two directions. NOAA's engineering weather data for Drake Field puts the 1% summer design temperature at 92°F, with a mean coincident wet-bulb of 75°F, and the 99% winter design temperature at 12°F. A window that's great at keeping summer heat out may be different from one tuned for winter heat retention. The right answer depends on which way each window faces.
Reading the label
The National Fenestration Rating Council (NFRC) label gives the numbers that matter. U-factor measures heat loss: lower is better for winter. Solar Heat Gain Coefficient (SHGC) measures how much sun heat comes through: lower is better for west- and south-facing windows in summer. Visible transmittance tells you how much daylight you get. Ask the contractor to quote the U-factor and SHGC for each window, and consider a lower SHGC on west-facing glass and a higher one on south glass if you want winter sun.
Humidity and condensation
NOAA counts about 768 hours in an average year when the wet-bulb at Drake Field is above 73°F. In summer, condensation can form on the outside of efficient windows in the morning; that is normal and means the glass is insulating well. In winter, condensation on the inside points to high indoor humidity or a cold window frame. Ask how the installer will seal and insulate around the new window, since gaps around the frame cause more drafts and condensation than the glass does.
Wind, rain and installation
NOAA lists a 50-year basic wind speed of 90 mph and a 100-year rainfall rate of 3.7 inches per hour for Drake Field. Installation details decide whether wind-driven rain stays out. Ask:
- Will this be an insert (pocket) replacement or full-frame replacement? Full-frame lets the installer inspect and flash the rough opening, at higher cost.
- How will the opening be flashed, with sill pan and tapes in the right order?
- What will they do if they find rotted framing, and at what price?
- What design pressure (DP) rating do the windows carry?
Arkansas's license rule
In Arkansas, work on a single-family home costing more than $2,000 in labor and materials needs a license from the state Contractors Licensing Board, and windows are one of the specialty trades its home improvement license is meant for. Nearly every window replacement crosses that line. Ask for the license number and look it up on the board's search before signing.
Comparing quotes
Ask each contractor for the brand, product line, frame material, glass package and NFRC numbers, plus the installation method, trim and disposal. Get the manufacturer warranty and the installer's labor warranty in writing, and ask whether the warranty transfers if you sell.