Energy-efficient exterior doors help keep your home comfortable through Murray’s cold winters and hot summers while cutting the energy wasted through drafts and poorly insulated doors. But efficiency depends on more than the material. The core, glass, seals, and installation all play a part. Here’s what to look for when comparing insulated front entry doors and patio doors.
Start With the Core
What’s inside the door matters more than what’s on the surface. Most modern fiberglass and steel doors have an insulating foam core, usually polyurethane, which gives them far better insulating value than a solid wood door of the same thickness.
Wood doors offer beautiful natural character, but if efficiency is a priority, a fiberglass door with a wood-grain finish can deliver a similar look with much better insulation.
Pay Attention to the Glass
Glass is usually the least insulated part of a door, so the amount and type of glass make a big difference.
- Less glass generally means better efficiency. A door with a small lite or no glass will typically insulate better than a full-lite door.
- Insulated glass with a Low-E coating reduces heat loss in winter and heat gain in summer.
- Decorative glass can still be efficient when it’s built into a sealed, insulated glass unit.
ENERGY STAR sets separate efficiency criteria for doors based on how much glass they contain, so compare ENERGY STAR certified door models within the same glass category for a fair comparison.
Look Closely at the Seals
Even a well-insulated door wastes energy if air leaks around it. Look for:
- Compression weatherstripping that seals tightly along the sides and top of the door
- An adjustable threshold that can be raised to close gaps as the door settles
- A durable door bottom or sweep that seals against the threshold
- Multipoint locks, which pull the door tight against the weatherstripping at several points
Consider the Frame
The frame surrounding the door matters too. Frames made of composite or other rot-resistant materials hold up better to moisture at the bottom of the jamb, where snowmelt and rain collect. A frame that stays solid and square keeps the door sealing properly for years.
Patio Doors and Efficiency
Patio doors have more glass than entry doors, so glass quality is especially important. Hinged patio doors use compression seals and often seal more tightly than sliding doors, which rely on sliding seals. That said, quality sliding and hinged patio doors with Low-E insulated glass and well-designed weatherstripping can both perform well in Murray’s climate.
Installation Makes the Difference
A highly rated door won’t perform as rated if it’s installed poorly. The door must be set plumb and square, the gaps between the frame and the rough opening must be insulated, and the sill needs proper flashing to keep water out. Expert door installation services make sure every part of the door works together to seal tightly.
Choosing Energy-Efficient Exterior Doors for Your Home
The best energy-efficient exterior doors combine an insulated core, the right amount of quality glass, tight seals, a durable frame, and careful installation. Weigh those factors together, and you’ll get a door that looks great and keeps your home comfortable year-round.
Ready to upgrade? Call Murray Window Replacement at (385) 786-6447 or request a door replacement estimate to compare your options.