would like some advice as im attempting to do most of the building work
on an extension to my house, the blockwork has been built up to joist
height and ive started to fix a wallplate onto the wall of the house to
run the joists between the old house and new extension........the
problem i have is the original wall im attempting to fix a wallplate to,
so i can hang my joist off it is made out of hollow block, ive put about
40 masonary screws into it and fit 3 backstraps to the wallplate
too....will this enough to take the weight of the floor???? advice
really needed and appreciated
Doubt it's up to Code reqmt's even if it (initially) holds...
As DadiOH says, you need professional input. I'd be guessing a pocket
at a minimum. There's got to be a tie somewhere/somehow...and if you're
in an area that has EQ reqmt's or other local conditions it may take
something even more exotic.
It could be because he's ashamed of who he is.
He rightly concludes that, as an unknown, he'll be accorded neutral status -
at least for a few posts - and that's far, far better than his former
I would remove that top course of block so you can set the joists on
top of something.
Ledger boards are always a make shift way to do it. You are probably
thinking of sheet metal hangers too.
Even if the engineer says they are structurally strong enough, what
happens if they rust a bit?
I agree with the advice to have the ends of your floor joists resting on
concrete block walls, not just supported by them as would be the case
with a header.
Also, you need blocking between the joists. The whole purpose of
bloking between joists is to prevent the joists from twisting under a
heavy load. By keeping each joist vertical, you maximize the rigidity
of each joist and hence the whole floor.
Really, while you very well could do the physical work yourself, this is
not a DIY project. Your house is your biggest investment. Don't put it
in jeopardy by designing the addition yourself as well. You need to get
an engineering and/or architectural firm involed in designing the
addition so that what you build will meet the building code and be safe
to live in.
I'm wondering where you can put an addition on a house
today without a building permit. And typically the building
permit requires at least some kind of minimal drawings
which would address the issue in question, ie how it gets
attached to the rest of the house and supported.
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