Blog · Windows · 4 min read

Low-E Glass for New Hampshire Windows

· New Hampshire exteriors

Low-E glass reflects infrared heat. In New Hampshire that helps hold warmth in winter — when the unit is sealed and flashed correctly.

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What Low-E does

Thin metal coatings manage heat flow through the glass. Different packages balance U-factor and SHGC for climate.

Ask for performance numbers on the proposal — not just the marketing name.

NH priorities

  • Lower U-factor for cold winters
  • Reasonable SHGC on south glass
  • Warm-edge spacers for condensation control

Install still wins

A premium Low-E unit in a leaky opening underperforms. Foam, pan flash, and square openings matter.

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