Refurbished Sash Windows - Building Regs

leveller2911

AdrianC wrote: »

There are companies who offer BR-approved renovations of sash timber windows - a friend of mine runs one.

Some sash Windows cannot be bought up to BR because the sashes are too thin and when renovating sashes there's no requirement to meet BR with regards to thermal efficiency just toughened glass fitted where necessary.

Even the most efficient 4-4-4 Low E glass units fitted with Krypton gas won't meet regs and you need a very thick sash to accomadate a unit that will.

casper_g

We had our timber sash windows refurbished, including replacing sections of rotten timber, replacing cords/hardware and draught-proofing all over the place. We stuck with single glazing, as we wanted to avoid UPVC like the plague and the cost of modifying the existing sashes and frames to accommodate double glazed units (and upgrading the sash weights to balance the added mass) far outweighed any benefit there would have been.


I’d say either stick with single glazing or go the whole hog and have new double glazed timber sash windows made.