A range of timber heritage sash windows designed to incorporate a number of traditional features but utilizing modern design and materials, and also able to deliver a high performance.

A modern, efficient heritage sliding sash window which is an alternative to slim double glazing.

Features and benefits:

U-Value: 1.12 W/m²K.
Class 4 air permeability.
Class 4 weatherproofing.
Toughened vacuum glazing.
Manufactured from Accoya® timber.
Building Regulations Approved Document L Compliant.
60+ year expected service life.
Manufactured from Accoya® with high energy efficiency.
Vacuum cavity glazing, delivering U-values comparable with modern double glazing, but with a total thickness of only 8.3 mm. No double reflection makes it suitable for use in conservation areas. LandVac glazing is also toughened as standard for safety and security.
Patented SashSealer technology delivering the only class 4 air permeability, traditional sliding sash window on the market. Weights and pulley window has a proprietary pocket seal to reduce draughts through the sash pulleys.
Traditional fitch fasteners, pulleys and sash limiters in a range of styles and finishes. Hung on traditional lead weights as standard, but also available with concealed spiral balances.
Slender 22 mm glazing bars and thin profile of the windows reduce the perceived width of the sections. External bar designed to replicate the traditional appearance of putty pointing.
Supplied with a full 10-year guarantee and are eligible for TimbaCare.
Extended comprehensive guarantees - Energy efficiency that meets modern regulations - Traditional appearance for conservation projects - More cost-effective initially and in ongoing maintenance.

EPD HOO3.1 Winston