THE 2-MINUTE RULE FOR SASH WINDOWS

‘It’s vital that you never ever block window trickle vents and to prevent in excess of draught-proofing windows in kitchens and bathrooms in which the moist air needs to escape,' says Natasha Collins-Daniel, campaigner with the Centre for Sustainable Electrical power. 'Usually, you can end up with damp or mould challenges.'"Despite the point se