phillipsmw

In those cases doesn't the cold (or warm) supply come from another source via a human being, that I can't possibly control? As opposed to the "wholesome water" that is being supplied via a hose pipe and chemically cleaned/balanced?

Many thanks for the replies. For the humidity, I had planned to use a heat recovery ventilation unit (HR500) with a humidity sensor. I will take on board the heating under windows and the composition of any metallic fixings. Very much at the early stages of whether it is viable/affordable. And I hadn't noticed the Part G requirements. I've just a had a brief look. The building won't have a hot water supply so I think G3 won't be a concern. For G1, the requirement refers to drinking water or sanitary appliances (which I don't think a pool is?).

Hoping to get a spot of advice please on whether I have the correct understanding here. I'm considering turning my outdoor pool into an indoor pool. My proposed enclosure would be just under 30 square meters internally and would be built of a non-combustible material as it's close to the boundary, so I gather no building regulations required for the outbuilding itself, except Part P. The LABC website says "Any outdoor pool that has a permanent structure over it will become an indoor pool, but as long as the structure is unheated and unventilated it will not have to comply with building regulations." Then that "Building regulations do apply to indoor pools and the requirements are more involved". The pool is heated but unsure whether the building will be heated at this stage. The pool is 20 square meters and already has some insulation from when it was built. I've got calculations showing a U-value of just under 0.8, calculated according to BS 13370 in the same way as a "heated basement". This is not good enough for the 0.25 mentioned in the regs. It would be possible to improve on this, but it would add greatly to the cost. However, I see from the approved document that energy efficiency requirements don't need to be met for "New and existing stand-alone buildings other than dwellings, with a total useful floor area of less than 50m2". The pool building will house the pool and nothing else, so I see it as a "stand-alone building other than a dwelling". I have emailed the local building control and haven't had a response yet, but I'm thinking that I can just go ahead with it, based on what I've researched. Can anyone give any input? Thanks