Frequently Asked Questions
Energy Rating. Below are the options:
A Rated with the 33mm Slim frame only.
B Rated with both the 33mm slim and 47.5 standard frame Solar with both the 33mm slim and 47.5 standard frame (Energy rating: B)
Note: Solar is to do with the glass specification used and not the profile itself
33mm slim – (this is not suitable if rendering or cladding the building) Frame Width: 33mm Frame Depth: 53mm 47.5mm standard – (this is suitable if rendering or cladding) Frame Width: 47.5mm Frame Depth: 53mm
This is the depth of the opening from the top of the frame. Minimum drop is 320mm.
This is the width of the opening part of the window (sash). Minimum width is 450mm
Both the 33mm and 47.5mm profile require an add on to the head of the frame to allow for a trickle vent