Generally, door Frame fixing is done in following methodologies,
- Hold fast system
- Anchoring system
- Foam adhesive system
- Foam cum anchoring system
Here, we would like to discuss about the foam adhesive system;
General requirements of door frame fixing,
The following are the requirements of frame fixing,
- Frames are to be strongly fixed with the masonry
- Opening sizes are in correct measurements
- Door opening and closing should be perfect
- Door frame fixing should not get affected due to environment thermal variation
Foam & its characteristics:
- The foam used for door frame fixing is basically polyurethane foam. It has excellent adhesion on most substrates. It has high thermal and acoustical insulation.
- It has excellent stability, mounting capacities and very good filling nature.
- It comes in ready to use cartridge with application nozzle accessories.
Advantages:
- All required functionalities of door fixing are full filled
- It helps to avoid moisture coming from masonry to wood. So life of the door frame will increase
- Easy to handle
- Machinery/ power supply not required
So, we can able to save in manpower, Electricity, Environment…
Disadvantages:
- Proper surface preparation is important
- High Skilled tradesman & Supervision is must
- Templates are required for proper completion
Installation (Step by step procedure):
Preparatory Works:
- Door jambs should be completed
- All opening measurements to be ensured
- The gap between wall and frame should be around 10 to 15mm
- Vertical line should be in plumb
- Level and line should be ensured
Procedure of fixing:
- Once the door jambs are ready, door frame are set in position with temporary wedges
- Check for line, level, dimension and plumb
- Use the template to keep the frame in position. (It is left in the position for at least 24hrs from foam filling)
- The gap between the frame and jamb should be around 10 to 15mm
- Set the nozzles in the cordage and fill the gaps with form.
- After 12hrs the temporary wedges can be removed
- Further steps like Architecture or shutter fixing can be done after 24hrs.
