Gow Posted August 31, 2023 Share Posted August 31, 2023 I am about to have the old entrance front porch door replace with a split single French door. Access with a wheelchair is occasionally needed. Is aluminium the only type of low threshold bar available and if so, does installing a low threshold bar create more heat loss? Read up on u-values of threshold bars etc but I am none the wiser as each company rates theirs as the best! Link to comment Share on other sites More sharing options...
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