Polyframe is the only manufacturer fabricating Rehau’s recently launched Total 70 multi chamber system as standard for all customers. The benefits of Total 70 for the installer include improved window energy ratings that can be achieved due to the increased number of chambers. This gives windows maximum thermal efficiency without the need for expensive glass, making the overall installation more cost effective for the installer. For projects where lower U Values, or higher Window Energy Ratings are required Total 70 again ticks all the boxes. U Values as low as 0.8 can be achieved, which satisfies the requirement for Passivhaus, along with A+ window energy ratings.