I’m not sure what you mean by flat tin roof. Roofs normally should have a minimum pitch for drainage. Secondly, you need to know what there is a dipping section…

Talk to your local council/building certifier regarding certification requirements for retaining walls even if you are retaining small heights. Different councils may have different requirements.

If you are only have 200mm of uncontrolled fill, the slab could be sitting in firm ground according to soil log. However, if the engineer specified 410mm deep slab, then…

Can you post the soil logs and what type of building is it?

Just make sure whatever takes the stormwater is capable to safely drain it away without overflowing. If you have to install another gutter and downpipe, so be it. I would…

You need to provide drainage /seal the gap between the two buildings. The higher roof should have its own drainage. I understand you are talking about wind driven rain on…

Generally those steel cages go the full length of pier with bottom cover. It’s best if you check with the engineer if you could go the full length and setup…

The ground around the building should slope away from the building as per NCC requirements to allow for stormwater drainage.
Also check for pipes leaks, disconnections, and damage in order to…

Possible cause could be grout mix had lower/higher water than recommended and/or waterproofing compromised.

The beam needs to be supported and tied down for the span/s it has been designed for. Cracks in plasterboard means excessive deflection of ceiling joists due to excessive deflection/load…

When did you seal the grout? Generally, you need to wait 48-72 hrs for the grout to cure before applying sealer.

It will require using dowels to connect the brick columns with the existing main building brick N12 at 400mm and same for column footing if not connected to main building…

It looks like the column is built separate from the main building and possibly on separate footing too. The column bricks should be part of the house wall brick (toothed…

You need to remove the concrete pavement to see the full extent of rust. Depending on the loss of section amount, you can sand/clean and cold gal or you replace…

I have just run a quick design check on that 4.5m span connected boxed beam B1 250x70x1.5 and it appears that the beam if adequately connected would run at 130%…

In the upper floor members plan where it is marked FT21 and FT22 there should be an actual structural steel beam to pick up floor joists FT13 but rather they…

Yes, I did look at that. There is only the floor joists and bearer’s layout but not sizing table for labelled members. Can you point me to where in the…

It could be. It has to be certified by an RPEQ engineer though.

I can’t find the floor joists and bearers size table. Are you sure nothing is missing from those plans?

Looking at the ground floor bracing plan, in my opinion the area under bed2, bed3, bed4, bath, activity is not well braced in the X direction. You have two corners…

So it’s just noisy not actual cracks in floor or walls.
Can you post the framing design for the area with noise?

Do you have photos for the cracks? Did you get the framing structural design?

I would check the lower floor bracing if movement is sideways specifically if the wall you say it moves is downstairs. And check the floor joists and floor panels maximum…

If you have the plans, you should be able to know if it’s generic or not. At least from the date it was drawn and signed.
Also if the plans include…

Great, then no piers would be required. It should be straightforward waffle slab.

You said it’s a kit steel garage. If it’s made say for example from steel portals, it can be any length by adding more frames, or any width by having…

I believe the problem is in borehole 2 which has fill down to 1m, although the fill looks like is compacted but you would need piers through it (P.S piers…

First E for extreme reactive. H1 is first degree high reactive. 3.3m of fill is a lot for conventional concrete piers to go through without reinforcements and even if you…

I thought most of those kit building are standard drawings that is pre-engineered for a range of soil types and wind ratings. If even an engineer is required to place…

What wall cavity has to do with sewer lines? Wall cavities are normally 40-50mm. Plumbers are not even allowed to run water pipes through wall cavities and they have to…