Low-E Glass 4C

CR, or Condensation Resistance, measures how well a product will resist the formation of condensation and is expressed as a number between 1 and 100. The higher the number, the better the window will resist forming condensation. This rating is useful for comparing window products and is not meant to indicate when condensation will actually occur. Be sure to ask your local window distributer about CR.

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FAQ Friday is a weekly feature where we answer Frequently Asked Questions about our products, service or industry. To see other FAQs we’ve answered, visit our FAQ page. If you have a question you don’t see an answer for, just ask in a comment or contact us.