Draught Proofing Sash Windows

How To Draught-Proof Sash Windows

Are sash windows draught-proof? Do sash windows need trickle ventilation? How can you prevent draughts in traditional or heritage homes? Before we answer these questions, there are a few things you need to know about wooden Sash Windows.

Firstly, for sash windows to operate, they must slide freely on a track driven by various beads and pulleys. So, unlike casement windows, they need movement, so they cannot be completely sealed. Also, old timber windows can have rotten or damaged wood, cracked leaky putty, unbalanced weights and are prone to shrinkage, so they no longer fit their frame. This may explain why homes with old windows are often considered prone to draughts, rattling or allowing the noise from outside to filter through. But with modern manufacturing methods and proper installation, replacement timber windows can overcome all these concerns.

Draughtless Trickle Ventilation

People often believe the vents will cause heat loss. But the correct ones will not. The trickle ventilators ensure a healthy, consistent flow of fresh air.
We can discreetly design these within your frame if you require trickle vents due to your building regulations or your architect’s design. We use specially designed trickle vents that prevent heat loss and come with soundproofing as standard. A good manufacturer should have the knowledge and ability to source these. There is even technology that retains the benefits of trickle ventilation without cutting visible, unsightly holes.

Weather-Proof Your Sash-Windows