Innovative draught-proofing for a warmer home

As an intrinsic part of a building’s history, original timber windows add character and authenticity to a period property. However, they can be draughty, leaving a beautiful home uncomfortably cold, noisy and expensive to heat.



So what causes the draught? Sash and casement windows have a 3mm air gap to allow the sashes to slide past each other, for a smoother operation. And inevitably, this is where the wind whistles in. As timber window experts, Ventrolla have tackled this issue with an innovative solution that combats draughts without compromising the aesthetic of your windows.



Enjoy a warmer home with the Ventrolla Perimeter Sealing System (VPSS)

The VPSS was created by Ventrolla’s founder, Robert Tunicliffe. Drawing on his experience designing gaskets and seals for Ford Motors, this innovative window seal has evolved over the last 40-years into a precision-manufactured system. Thousands of homes across the UK already have it fitted and are benefiting from a less draughty home.

What are the benefits of the VPSS?

Essentially, this is draught-proofing technology, which acts as a barrier to cold air which is entering the home. VPSS brings with it a selection of other plus points, too – and has been tested to offer the following benefits:

  • It prevents rattles
  • Stops water and dust ingress
  • Helps to cut down external noise being heard in your home, and
  • Keeps warm air in to help reduce energy bills – the VPSS has been independently verified to improve the Window Energy Rating (WER) by up to 30%


If your sash or casement windows are in need of repairs or renovations – or you are looking for replacement windows to mirror existing ones, you may be interested to know that the VPSS is usually fitted as standard.


Tested to withstand winds up to 71mph

VPSS includes our high-performance Weatherfin Pile, which is installed in our unique parting bead between the sashes, in the new staff beads around the window, and directly into the mid and bottom rail of your sash windows. This ensures that all of the gaps around the sashes are filled, creating a fully sealed window. Thanks to the low friction properties of the sealing system, the sliding operation of a sash window is also restored to full working order.

Ventrolla Windows Perimeter Sealing System (VPSS)

Independently tested and its benefits verified by the British Board of Agrément and Acoustic Consultants Hann Tucker.


A discreet draught-proofing solution for period properties

This innovative draught-proofing system is a proven way to banish the range of issues, which can come with original timber windows. However, we’ve cleverly designed it to be unobtrusive, so there’s no compromise to the look of your windows. VPSS is also supplied in a range of colours and can be colour-matched to suit all finishes. So, you can enjoy the benefits of a warmer home, without having unsightly draught excluder on show.


The team at Ventrolla can talk you through any questions you may have about VPSS – get in touch today to find out how to make your home a warmer and more comfortable place to live.