top of page
Schone sponningen van een oud kozijn.

Performances

The VR Strips sash window technology was developed to insulate a sash window against cold, drafts, and noise with minimal effort, the smallest investment, and the greatest preservation of the original materials.

Due to its clever design, VR Strips delivers exceptional performance in all its simplicity, making it suitable for almost any restoration project.

Draft-proofing

The VR Strips system provides a permanent, flexible seal between the frame and the sashing section, reducing cold, drafts, and noise.

Cold is kept out by a closed chamber within the profiles. Increased wind pressure pushes the profiles more firmly against each other, ensuring maximum sealing in various conditions. Additionally, rain impact and outside noise are buffered by the labyrinth design within this square-centimeter cross-section.

Guidance

VR Strips accommodate small deviations of the sash window, both when closed and during sashing.

The profiles provide sufficient clearance, even if the window is slightly misaligned or not perfectly vertical. The spring mechanism in the sashing sides of the VR Strips counteracts tilting of the window. This also ensures smoother opening and closing of your window.

Installation space

With a minimal installation space of approximately 10x12mm in cross-section, every valuable detail can be preserved. This small adjustment is also fully reversible at any time.

The functionality of the VR Strips is primarily contained within a single square centimeter cross-section on the sides, allowing almost any (restoration) window to be equipped with VR Strips with minimal modifications. It does not matter whether the sash window is balanced with springs or counterweights.

The sealing at the top and bottom is also small and simple and can be adapted in various ways to fit the specific situation effectively.

VR Strips downloads
VR Strips zijn ontwikkeld voor schuiframen vanaf 36mm dik, maar kunnen toegepast worden in ieder verticaal schuivend raam waar een groef van 10x12mm kan worden gefreesd zonder dat deze iets in de weg zit. De basis voor het toepassen wordt duidelijk gemaakt in de meegeleverde handleiding.

A suitable solution

The VR Strips are suitable for nearly all sash lower and upper windows, whether they operate with counterweights or balance springs.

VR Strips are designed to accommodate play in (older) windows. This means the window can be slightly warped, uneven, or twisted. Differences of up to approximately 5mm in any direction are acceptable. Larger deviations may reduce the insulation value or make sashing less smooth.

Restoration windows are all unique. With its clear functionality and great flexibility in application, VR Strips provide a solution even for special cases. Its simplicity makes the system easy to apply - ideal if you want to do it yourself. For professionals, their knowledge and experience can help integrate modern comfort seamlessly into restoration work, respecting the original craftsmanship.

VR Strips are designed for sash windows starting from 36mm thick, but they can be used in any vertically sash window where a groove of 10x12mm can be routed without obstruction. The basics for installation are clearly explained in the included manual.

De VR Strips schuifraamtechniek is geschikt voor vrijwel alle schuivende onder- en bovenramen, zowel met contragewichten als met balansveren.

Application

The unique and highly precise sealing technique of VR Strips makes the classic sash window solid, draft-free, and smooth to operate. The primary focus during the development of VR Strips was - besides sealing and ensuring smooth window operation - the method of installation. Designed to transform almost all existing sash windows or reconstructions into fully functional windows that meet high comfort standards.

VR Strips

If the gaps in a classic sash window require sealing, VR Strips are designed for the job. VR Strips are the successor to the patented WinTwin sash window system, fully designed and developed by Van Ruysdael in 2011.

bottom of page