LITTLE KNOWN FACTS ABOUT SASH WINDOW DRAUGHT PROOFING.

‘It’s crucial that you under no circumstances block window trickle vents and in order to avoid around draught-proofing windows in kitchens and bogs where by the moist air needs to escape,' suggests Natasha Collins-Daniel, campaigner for the Centre for Sustainable Power. 'Normally, you could end up with moist or mould challenges.''In higher wind