Thank you for your help - Please save me!
In just a few days a new pottery studio is arriving for my wife, but the concrete base has gone wrong
The Concrete base is 5.5m by 2.4m (18' by 8'), steel reinforced, hand poured by an amateur friend on top of 10cm of compacted mot type 1.
The pottery studio is a timber building of the same size, containing a heavy pottery kiln, heavy clays, etc. The studio arrives in panels and is installed for free but you must have a proper, level concrete base.
The studio sits on a wooden pressure treated sub-floor/base, provided by the factory.
It is a frame of 44mm high joists spaced 300mm apart, with the flooring already connected to it. (flooring is 19mm pine + laminate on top)
Challenge 1: The left third of the concrete base is lower than the right
It is lower the full length across (2.4m) to varying degrees, dipping between 5mm and 30mm lower than the right side.
Challenge 2: It is impossible to put packings all the way along the joists when you can't see them through the flooring... I could put some packings in at the edges - but it feels like this new studio is starting with a bodged job
Questions:
(A) Will the joists(+flooring, walls, etc) warp over time if the joists are only supported at the edges using packing?
(B) Is there a solution to level the concrete first? I've been told adding more concrete wont work...
(C) Any other ideas?
Thank you for your help!
p.s.
My only idea so far is:
1 - Build a temporary frame of wooden joists
2 - Pack out all the dips under the joists (with whatever pressure treated bits I can cut up to fit or maybe damp proof course in layers??)
3 - Remove my joists and leave the packings in position, ready for the arrival of the real sub-floor
In just a few days a new pottery studio is arriving for my wife, but the concrete base has gone wrong
The Concrete base is 5.5m by 2.4m (18' by 8'), steel reinforced, hand poured by an amateur friend on top of 10cm of compacted mot type 1.
The pottery studio is a timber building of the same size, containing a heavy pottery kiln, heavy clays, etc. The studio arrives in panels and is installed for free but you must have a proper, level concrete base.
The studio sits on a wooden pressure treated sub-floor/base, provided by the factory.
It is a frame of 44mm high joists spaced 300mm apart, with the flooring already connected to it. (flooring is 19mm pine + laminate on top)
Challenge 1: The left third of the concrete base is lower than the right
It is lower the full length across (2.4m) to varying degrees, dipping between 5mm and 30mm lower than the right side.
Challenge 2: It is impossible to put packings all the way along the joists when you can't see them through the flooring... I could put some packings in at the edges - but it feels like this new studio is starting with a bodged job
Questions:
(A) Will the joists(+flooring, walls, etc) warp over time if the joists are only supported at the edges using packing?
(B) Is there a solution to level the concrete first? I've been told adding more concrete wont work...
(C) Any other ideas?
Thank you for your help!
p.s.
My only idea so far is:
1 - Build a temporary frame of wooden joists
2 - Pack out all the dips under the joists (with whatever pressure treated bits I can cut up to fit or maybe damp proof course in layers??)
3 - Remove my joists and leave the packings in position, ready for the arrival of the real sub-floor