ᐅ OSB Boards for the Attic "Required," Yet Additional Charges?
Created on: 19 May 2016 14:56
T
tlactar
Hello,
we have recently started building (or rather having it built). Turnkey with an “all-inclusive price.”
Yesterday, the construction company called me and said: “We would now lift the OSB boards for the attic floor up to the roof structure for you. The boards cost about €580 for 40m² (430 ft²), and whether you install them yourself or not (980€ / about $1,080) is up to you.” ... okay? When I replied that I could get them significantly cheaper if I bought them myself, they said: “Alright, but these boards are included in the structural calculations, so please install them promptly.” ... o...k?
Now the question: is it really true that these boards are necessary? It seems odd to me... and if they are, shouldn’t they be included in the price? We had repeatedly asked beforehand if there might be any additional costs, but this was never mentioned. Is this even legal? Would they build us a structurally insufficient house without these boards?
we have recently started building (or rather having it built). Turnkey with an “all-inclusive price.”
Yesterday, the construction company called me and said: “We would now lift the OSB boards for the attic floor up to the roof structure for you. The boards cost about €580 for 40m² (430 ft²), and whether you install them yourself or not (980€ / about $1,080) is up to you.” ... okay? When I replied that I could get them significantly cheaper if I bought them myself, they said: “Alright, but these boards are included in the structural calculations, so please install them promptly.” ... o...k?
Now the question: is it really true that these boards are necessary? It seems odd to me... and if they are, shouldn’t they be included in the price? We had repeatedly asked beforehand if there might be any additional costs, but this was never mentioned. Is this even legal? Would they build us a structurally insufficient house without these boards?
Bauexperte schrieb:
It is quite possible that @Musketier is correct in his assumption, but also that the structural engineer simply confused the building inspection authorityThat is quite possible.
Once this is finally clarified, the original poster can decide whether to spend an additional 1000 euros on OSB boards there (or, in the case of a cold roof, better to avoid this) or to install tongue-and-groove boards later themselves.
S
Sebastian7920 May 2016 11:31I like to repeat this: a cold roof is not what you think it is
S
Sebastian7920 May 2016 11:52It didn’t sound like what you meant in this context – it is not an uninsulated attic space!
Also, with your roof windows, it will be quite challenging to properly construct a cold roof.
Also, with your roof windows, it will be quite challenging to properly construct a cold roof.
Sebastian79 schrieb:
That didn’t sound like how you used it here in this context – it’s not an uninsulated attic!
Also: With your roof windows, it will be quite difficult to correctly create a ventilated roof (cold roof) .The ventilated roof only exists in the knee wall area for me.
Otherwise, the roof itself is insulated. In the knee wall ("attic") area, it’s the upper floor ceiling.
That’s why the double casement window isn’t a problem. Otherwise, you’re right: it wouldn’t have been possible to build it that way.
And very clearly and definitely: I do have an *UNINSULATED* attic. Conditions there closely approximate outdoor conditions. There are even ventilation bricks installed.
Best regards
Thorsten
Similar topics