Fixing the frame
Fasten a batten
After determining the correct height of the window installation fasten a batten to support the window frame.
Separate sash from frame
To install the frame, it must first be separated from the sash. Open the sash and rotate it through 180 degrees.
Unlocking the hinge
Locate and press the locking mechanism on each hinge (it should make a click) and separate the sash from the frame.
Once the hinges are released, carefully separate the sash and place to one side (store horizontally).
Installing the frame
Carefully pass the frame (with brackets fixed) through the opening. Place frame on support batten and lay flat on rafters.
Check frame alignment
If level, fix the bottom brackets.
Final alignment check
Replace the sash to test that it opens and closes properly. If it is not closing properly it is best to find out at this stage.
To make sure the frame is set properly, check the gaps at the closure of the sash. If the vertical gaps are parallel with the gap at the bottom in a slightly opened position, then the frame is correctly aligned, and the top brackets can be fixed.
A plastic wedge is supplied to pack the bracket where there is an uneven rafter.