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24.06.2020

How to construct a door opening with UA profile?

In this video we show how to construct a door opening with UA profile.

Here are the installation steps we followed:

  1. Using chalk line, mark the axis of the partition wall on the floor, surrounding walls and ceiling.
  2. Determine the width and position of the door opening on the floor.
  3. Cut out the side UD profiles and insulate their flanges with an acoustic foam tape for better sound insulation. The bottom UD profile is discontinuedat the place of the door opening. Install the upper UD profile continuously along the length of the ceiling. Fix all peripheral profiles with a suitable fastener to the main supporting structure.
  4. Form the door opening with massive UA profiles, specially designed for structures with intensive and high load capacity. The connection angle of the UA profile to the floor and ceiling is achieved by using e bolts and angles for UA, corresponding with the width of the installed profiles. Leave the upper UA angle with loose bolts to the UA profile to avoid the rigid connection between the partition wall and the main structure. This helps avoiding cracks at the joints due to deformations in the main structure of the building from subsidence, earthquake or sagging of the floor slab.
  5. Form the door lintel with a UW profile, specially sized with a length of 2x250 mm + the door opening. Install the lintel with Self-drilling screws TEX 4.2x13 to the UA profiles. The vertical CW profiles are measured, cut and positioned at 600 mm, so that above the lintel there is 1 vertical element for single-layer or 2 vertical elements for double-layer cladding. The minimum distance of the vertical CW profiles above the lintel must be 150 mm from the UA profiles.
  6. Secure the first layer of the cladding with Drywall screw 3.5x25 to the metal construction and in the part with UA profiles use a Self-drilling screw 3.5x25.
  7. The boards along the door opening are cut out in L-shape to reinforce the upper corners. To install of the second layer of the cladding use a Drywall screw 3.5x35 and Self-drilling screw 3.5x35, along the door frame. Make sure to overlap the plasterboard sheets of the outer and inner layer of the partition wall over the lintel to avoid more than 1 vertical joint at the same place.

Find more technical information about the used products here.