Designing for Extremes
Utah’s climate is demanding. Summer temperatures regularly exceed 100°F, while winter nights can drop well below zero. The right window styles and configurations can help your home handle these extremes efficiently.
Understanding Utah’s Climate Challenges
Summer Challenges
- Intense solar radiation at high altitude
- Long sunny days
- High UV exposure
- Significant cooling loads
Winter Challenges
- Extended cold periods
- Large temperature differentials
- Heating efficiency critical
- Moisture management
Window Styles That Excel
Casement Windows
Why they work:
- Tightest seal of operating windows
- Excellent ventilation when open
- Energy efficient when closed
Best applications:
- Any room needing both efficiency and ventilation
- Kitchen and bathrooms
- Hard-to-reach locations
Fixed/Picture Windows
Why they work:
- No moving parts = best seal possible
- Maximum energy efficiency
- Excellent for views
Best applications:
- Living rooms with mountain views
- Combined with operable windows
- Rooms where ventilation isn’t priority
Double-Hung Windows
Why they work:
- Open top and bottom for convection cooling
- Tight-closing modern designs
- Versatile for most applications
Best applications:
- Traditional homes
- Bedrooms
- Areas needing flexible ventilation
Awning Windows
Why they work:
- Open for ventilation during rain
- Good seal when closed
- Pair well with fixed windows
Best applications:
- Basements
- Bathrooms
- Combined with picture windows
Glass Strategies for Utah
South-Facing Windows
- Use moderate solar gain Low-E
- Allow winter heat gain
- Control summer overheating
West-Facing Windows
- Use low solar gain Low-E
- Minimize afternoon heat
- Consider exterior shading
North-Facing Windows
- Standard Low-E appropriate
- Less solar concern
- Focus on insulation value
East-Facing Windows
- Moderate Low-E coatings
- Morning sun is less intense
- Balance light and heat
Frame Recommendations
For Utah’s climate extremes:
Best choices:
- Fiberglass (stable in temperature swings)
- Vinyl (good insulation, affordable)
- Wood-clad (beauty inside, protection outside)
Avoid:
- Unbroken aluminum (conducts heat/cold)
- Wood without protection (maintenance intensive)
Configuration Tips
Mulled Windows
Combining fixed and operable windows provides:
- Maximum views through fixed glass
- Ventilation through operable sections
- Best of both worlds
Window Walls
Large glass expanses work in Utah when:
- Properly oriented
- Using high-performance glass
- Combined with shading strategies
Energy Star Recommendations
For Utah (Northern climate zone):
- U-factor: 0.30 or lower
- SHGC: Varies by orientation
- Look for NFRC-certified ratings
The Bottom Line
The best windows for Utah combine tight seals, quality Low-E glass, and stable frame materials. Work with a professional to optimize each window’s style and specifications for its specific location in your home.