Hi Roker,
I'm saying "stick to what you're good at" - and for a reason.
Some people can't read drawings, some just don't "get" structure.
I've seen some real horror shows after only five years of DIY "improvements".
Years ago builders and tradesmen operated using somewhat generous rules of thumb.
With the trend towards minimal floor and roof members and stress graded timbers, it can be more risky today.
When dealing with services and structure you should retain the services of professionals and tradesmen who are competent to do the work.
Timber framed houses or framed upper floors can have complex load transference requirements both for load dispersal and lateral stiffening - its not all loadbearing blockwork.
ONQ.
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All advice on AAM is remote from the situation and cannot be relied upon as a defence or support - in and of itself - should legal action be taken.
Competent legal and building professionals should be asked to advise in Real Life with rights to inspect and issue reports on the matters at hand.