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Just posting incase anyone is curious: I got through to the tech team at Simpson, who informed me that you are not allowed to use the safety fast lite hangers on anything other than masonry. The other option I mentioned with the extra long hangers was the advisors preferred method - I expressed...

Yeah I would be attaching to timber with the long ones - 6 on the 'front' face of a 4x3 (i.e. the 3 inch side), then wrapped over and 12 on top, and 8 on the back, there would be about 80mm excess which I could snip off. I'll give Simpson a ring tomorrow and see if they can confirm either, and...

Thanks @^woody^ - I have emailed them already, but I might try giving them a call tomorrow, and if all good will see if they can follow up in writing, as I imagine my BCO will want to see it. If they come back and say no, is my option above viable, with the long leg hangers? Bit of a side note...

I saw these but it says for masonry walls, and i'll have the timber sole plate on top (pink in my diagram). Can they be hooked on to timber too? If so, they're perfect

I still can't find a joist hanger that would work with this setup so emailed Simpson, but no response yet. What I could do is use a 4x3 sole plate instead of a 4x2, which should allow for more face fixings on the hanger. Per hanger I could get 6 in on the front face, 12 on top, and 8 on the...

Better image:

Just looking at the levels now more of the roof is off, and it looks like the height of joist I need is around 55mm higher than the top of the brick. It may be far simpler to just bed a sole plate on top of this, build the dormer wall off of it and hang the joists from it too. I'm not too sure...

Amazing, thanks! Is it fine to put packers between the brick and joists, to get them level? The brickwork is far from perfect.

Thanks @^woody^ - would I sit the floor joists directly onto the inner skin of brick then, and noggin between at this end? So remove 2 courses of internal brick, DPC on top of brick (mortar underneath or no?), then joists and noggins directly on top, sole plate on top of joists, build wall off...

Yeah the joists don't need a plate, but i'll be building a dormer wall on top of it too. Currently there are 100x50 rafters sitting on the wall, and 100x50 for the loft floor. Both of these will be removed, with the floor lowered 15cm, and 200x50 floor joists, then a flat roof dormer will be...

Alternatively I could just remove 2 courses of brick, and notch a quarter of the ends of the joists and sit on a wall plate, which would mean less bricks removed. Any thoughts?

I'm building an l shaped loft dormer, with lowered loft floor ( 25cm) as a requirement for planning. The house steps down a little at the back, so because of this, If I attach the wall plate to the face of the brick, it will extend over the top of the brick, and any fixings will be in the top 1...

Great, thanks for the advice! For the steel post, I can just notch that out and bolt, one notch shouldn't be too much of a problem.

Would this be ok for building regs too? 7mm wood screws straight down into the packing i'm guessing. Would it require any straps?

I can't do that unfortunately, as the floor joists are already in in the floor below

I need to connect a steel post to a steel already in place. SE has specified 4 m16 bolts for the connection. That in itself is fine, I would just drill the steel and bolt up, but the steel has already been packed with timber - just to sense check myself, should i be notching out this timber for...

Probably also worth mentioning that removing the tiles to reduce the weight on the roof isn't possible as I don't have scaffolding up...

I've run into a new issue whilst putting in this new stud wall. The measurements were getting smaller as the studs were going long, which I initially assumed was sag in the rafters. After some more investigation, I can see that on one side the brick supporting the ridge board has cracked in...

I've got confirmation for the first two points - not super detailed, but i'm guessing it's because it's more clear cut than i'm making it out to be. Still unsure on the 3rd point though, preventing roof spread, as I can't seem to get a proper answer (or rather the answer is 'nothing else is...

i've got confirmation I can run the dormer wall off the new joists, no need for another steel, so happy days there. For your second question, I think that's essentially what i was asking about in a roundabout way. Still unsure what that detail is supposed to look like, as it feels like I would...