I have a basement project where I want to install a door where there is currently an arch. The arch has two joists from the floor above resting on it and the arch is currently reinforced to handle the weight. I have acquired an HEA beam that I intend to install instead, but now to the core question - how do I get the beam to press up against the rafters the last few millimeters? Here's how I plan to proceed:
1: Support the joists on each side of the door
2: Cut/remove the bricks so that I can fit my beam between the wall and the joists
3: Prop up the beam so it lies flush against the joist
4: Fill the "gap" with concrete.
However, concrete shrinks a bit and there is a risk that I'll get a gap. Should I use something else? Is there any expanding foam that works? Expanding concrete maintains its size but there is still a risk that I haven't completely filled the gap...
Suggestions are gratefully received. Help with the actual work is even more gratefully received
/F
1: Support the joists on each side of the door
2: Cut/remove the bricks so that I can fit my beam between the wall and the joists
3: Prop up the beam so it lies flush against the joist
4: Fill the "gap" with concrete.
However, concrete shrinks a bit and there is a risk that I'll get a gap. Should I use something else? Is there any expanding foam that works? Expanding concrete maintains its size but there is still a risk that I haven't completely filled the gap...
Suggestions are gratefully received. Help with the actual work is even more gratefully received
/F
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You can first create a flat base that is allowed to cure. On this, you can then adjust the height of the beam with thin sheets.
Alternatively, you can slightly lift the framework with the props before inserting the beam, so it settles down to the normal level afterwards.
If you are not planning to pour concrete thickly, or have very strict measurement/movement requirements for some reason, you might be overthinking this.
Alternatively, you can slightly lift the framework with the props before inserting the beam, so it settles down to the normal level afterwards.
If you are not planning to pour concrete thickly, or have very strict measurement/movement requirements for some reason, you might be overthinking this.