Window and Door Frames
Firstly, it does not make sense to build an energy efficient building, then remove the foam insulation on the reveals when installing window and door frames!
Or to use metal frames that conduct heat in and out of your building.
Installation of Window and Door Frames
- The opening should be approximately 10mm larger around all the window or door frames
- Leave the foam in place and foam in using ZEGO window and door foam
- Wedge the frame square and plumb in the opening
- Make sure that any reveals are 15mm inside the room. This is to allow for the 10mm plasterboard and the 5mm air gap where the cornice cement is
- With sliding windows and doors open the slider a little so that you can rack the frame to have the slider and frame meet parallel
- Now tack the frame in place in the corners and at 600mm maximum centres using ZEGO window and door foam (Dries in approx one hour)
- Proceed with installation of other frames in the building for approx one hour
- Return to the first frame, check it is still square, in wind and plumb
- If all OK, remove the wedges
- Starting at the top of the window frame, spray ZEGO window and door foam in a continuous motion around the entire perimeter of the frame
- Allow to dry and proceed with the other frames in the building for approx one hour
- Repeat the full seal around the outside of the frame
- Cut the excess foam off using a razor blade at the stage of rendering the walls or installing plasterboard
NOTE
- Do not seal both sides at once, or foam will get all over the frame and you will use more foam than necessary
- The foam seal should be neat
- Do not trim off any excess foam until you are installing the render or the plasterboard
