Sash windows have a 3mm air gap around the sashes to allow the sashes to slide past each other and operate smoothly.
It is this air gap that causes the inherent problems associated with sash windows, such as draughts, rattles, dust ingress and reduced energy efficiency. By installing the Ventrolla Perimeter Sealing System (VPSS) we can eliminate these problems.
Our high performance Weatherfin Pile becomes an integral part of your window, installed in our unique parting bead between the sashes, in the new staff beads around the window and installed directly into the mid and bottom rail of your sash windows:
• Manufactured from polypropylene, includes fin that stands 1.5mm proud of the pile
• Pile heights range from 3mm to 15mm, with a width of 6.7mm, to suit all gap sizes
• Silicone treated to improve water repellency and is ultra violet stabilised
• Meets all requirements of BS 7386:1997 and conforms to EN 29002, one of the most demanding European Quality Standards
• Tested to British Standards BS 6375:1-2009, equivalent to 71 mph winds
Our unique two-piece parting bead replaces the existing part beads, with the Weatherfin Pile already installed:
• A ‘U’ shaped section is screwed into the original parting bead groove
• Detachable pile carrier is snapped into the U section to allow future removal of sashes
• The height of the required Weatherfin Pile is established to eliminate Air Infiltration and allow low friction operation
• The parting bead is extruded in specifically formulated unplasticised resistant grade uPVC, giving excellent resistance to weathering
• Supplied in a range of colours and can be colour matched to suit all finishes
View our specification Technical Datasheet no.1 on VPSS and VR90 for more information.