Builder V structural engineer who is responsible?

[PSC88]

Hi

 

i have a main contractor and SE.

 

SE has provided a package for all my steel calcs and also the construction drawings for BC.

 

the builder is asking for working drawings for the build. The SE is stating some of these are out of the scope of his work and are the builders responsibility.

 

an example being we have bay windows….
 

the builder wants a full working drawings of the bay windows how to attached to the structure and the roof etc.

 

the SE has provided details of the load and lintels and specs and also Given a cross sectional view of the window with insulation details etc.

 

builder saying not detailed enough need info on how to build the dormer out and link roof to structure?

 

SE saying any builder worth there salt should be able to do this ? And the builder can use him for Clarification if unsure but it’s not his scope of work to go into such details ?

 

Are the both correct? Is one being more pedantic than the other i?

 

 

[JohnMo]

If you haven't paid for construction drawings you will not get them. It's more normal for the architect to do them, again you pay extra.

[Nickfromwales]

Your architect should have already produced GA’s (general arrangements) and some basin storey rods.

 

Your builder is right, no recipe book, no cake, otherwise the design onus is on him whereas it should be on your architect aka principal designer (it is they who will underwrite everything).

 

Have you tried saving money with architect fees? Prob the worst saving; subject to you having a good architect. 

[PSC88]

Hi I have a pack with the construction drawings as a layman it’s quite detailed? But I’m not the builder

 

im putting a screenshot below of the detail that’s been provided but builder saying not enough detail…

 

lintels/steels etc all listed on Seperate drawings

 

 

 

 

[Temp]

Got one for where the bay roof rafters attach to the house? Not a big issue on a small bay but... what stops the roof pushing the wall out? 

[JohnMo]

That's just looks like a planning drawings not a construction drawings. Should detail all the materials and dimensions to enable building it 

[Nickfromwales]

13 minutes ago, JohnMo said:

That's just looks like a planning drawings not a construction drawings. Should detail all the materials and dimensions to enable building it 

Yup. Zero sizes, so the drawing is useless to your builder; unless you research what size wall plate (for one eg here) is needed, and you provide these details yourself.

 

Seems like a bit of a rudder-less ship in honesty.