By continuing to use the site you agree to our Privacy & Cookies policy

Your browser seems to have cookies disabled. For the best experience of this website, please enable cookies in your browser.


Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.




Premdor has introduced the innovative Alpha System RP range, a reversible projecting window system. It uses a projecting and reversible hinge system, allowing windows to open through 170¦ for external cleaning within the dwelling, making this 'the ultimate timber window system for modern housing projects'. Alpha System RP windows are optionally available in environmentally accredited European redwood or hardwood materials.

Standard features include 24mm Low 'E' glazing units and ventilation.

Have your say

You must sign in to make a comment.

The searchable digital buildings archive with drawings from more than 1,500 projects

AJ newsletters