Select windows with locks or latches that can be easily opened from the interior but cannot be opened from the exterior. Maintenance, Durability, and Lifetime Check warranties for indication of durability and lifetime before selecting windows and skylights. Check the quality of window construction. Use protective paints, stains, or sealants on wood window and skylight frames or select clad wood products. Follow manufacturers' instructions to maintain glazing, sash, frame, and hardware in good repair.
Installation Check all applicable building codes before installing windows and skylights.
Follow manufacturers' installation instructions carefully. Economics Consider the relative effects on utility bills when selecting windows and skylights. Consider the effects on the resale value of a home when selecting windows and skylights. Check local, state, and federal energy efficiency programs and utility energy conservation programs for economic incentives for installing energy-efficient windows and skylights.