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    B-rated windows vs triple glazing

    Window Specialists

    Are B rated windows more energy efficient than triple glazing or double glazing? How do the energy ratings of A, B, A++ etc. compare with double and triple glazing? Are they comparable as such? I guess I want to know at what points the energy rating of a window (whether it be A or B) surpasses the efficiency of triple glazing, if at all?

    Asked by Pete on 24th May 2022
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    "Triple glazing is primarily for sound not Thermal efficiency consequently you are trying to compare apples and oranges.
    Ratings are based on thermal efficiency and that includes the glass LOW E glass is generally part of an A rated frame and adding triple glazing may reduce it to a B rated due to the glass element."

    Answered on 18th Jun 2022 - Member since Mar 2022 - report
    Bespoke property maintenance

    "Triple glazed are very expensive and not worth the extra cost unless you are in an airport run etc. go for a good A-rated window"

    Answered on 13th Jun 2022 - Member since Mar 2022 - report

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