Block and beam

[Nathan110]

Thoughts on this please

Span of approx 5.3 but beams cut and abutted end to end to end on a sleeper wall. Roughly 2.7 and 2.9 length

Would you do the same or stagger the beams?

Any comments on critique welcome

 

[^woody^]

The floor beams needs to be installed in accordance with the manufacturer's guidelines. So check what the manufacturer states on the permissible bearing, some have differing requirements.

 

[Nathan110]

Will ask but not sure they got a plan for this apart from ordering from selco!

 

[catlad]

How will you stagger them if the main requirement is to land on the central wall?

 

[^woody^]

Will ask but not sure they got a plan for this apart from ordering from selco!

Find out the supplier/ manufacturer from Selco. There are not many companies that make this stuff

 

[Nathan110]

Please see attached pic

Builders are not planning to use end blocks on the ends around the whole perimeter. Say insulation around the cavity is enough of a seal. Is it not necessary?

 

[^woody^]

Again, the manufacturer's guidance should be followed, not the builders do what they like.

 

[Nathan110]

Thanks for your input woody it is much appreciated. I just don't know how to check this. Do I call selco, ask the manufacturer of the beams and then call them and ask that way?

 

[^woody^]

You could phone selco and ask who their supplier is. Have a fake a story ready for if they ask for an account number.

Otherwise Google a few manufacturers and get a consensus from their install guides as to what they tend to require.

 

[Charlie George]

Every floor i have built on has infill slips in place,otherwise you will have voids under your internal blockwork,also at top end the beam should be inside further with blocks resting on slips on internal wall. You also seem short on telescopic airbrick,this is one example from google.
https://www.litecast.co.uk/media/1184/ancillary-sheet-slip-bricks.pdf

 

[Nathan110]

Thanks Charlie, that seems to be what my research shows. Can I ask what the worry is if there are no slip bricks and there's a gap - what's a potential problem? Also can you please explain your second point I didn't quite understand it. Many thank

 

[^woody^]

Thanks Charlie, that seems to be what my research shows. Can I ask what the worry is if there are no slip bricks and there's a gap - what's a potential problem? Also can you please explain your second point I didn't quite understand it. Many thank

Fundamentally, the issue is that your builders are not building properly - either by ignorance or incompetence, but regardless it's not right and you are surely not paying someone to do work that is not right nor do you want work that not built correctly.

The inner block wall leaf is built on the floor, and the wall should not be built on unsupported floor blocks

 

[Nathan110]

To be fair I asked the architect BC and he said air gap is also an accepted method but clearly some choose to have it.

Of course the beams are supported on block work but there is a void due to the 50mm recess profile of the beam

 

[^woody^]

unsupported floor blocks

 

[freddiemercurystwin]

To be fair I asked the architect BC and he said air gap is also an accepted method but clearly some choose to have it.

Of course the beams are supported on block work but there is a void due to the 50mm recess profile of the beam

Nah that's fubar, they're fobbing you off though I don't know why unless you're paying them to oversea the work? As woodhead mentioned each unsupported block is acting like a mini lintel, you really think that's OK? Would you allow your builder to support the head of 350 wide window with a block on its side?