On casement or sliding windows, V-seal is installed along the vertical side jamb where the sash closes. Felt: Felt is one of the oldest types of weather stripping.

If you're installing a window AC into a horizontal sliding window, you may wonder how to tackle the opening above. As you'll see, there's a simple workaround.

CARY, N.C., October 01, 2024--Best-selling Simonton® Windows have earned the Good Housekeeping Seal — one of America’s most trusted and influential consumer emblems.

Sliding windows from Air-Lux being tested for air- and water tightness. In addition, ... the air seal adapts to movement, so the sliding element always remains 100 percent sealed.

Recognized for Excellence: Best-selling Simonton 5500 and 6500 Double Hung, 6200 Sliding and DaylightMax® Sliding windows have earned the coveted Good Housekeeping Seal.