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Hi, I have a problem. I have a system boiler + hot water cylinder in the loft and need to install a shower on the floor below (immediately below the cylinder) The cold water is balanced with the hot. The pipe runs from the cylinder to the shower are pretty short. Usually, turning off the hot...

Thanks for this. I hadn’t factored in wall thickness

Hi, I’m replacing my old lead mains pipe with a new 25mm MDPE pipe, which Thames Water are kindly helping with free of charge. I had planned to terminate the MDPE pipe under my stairs, switch to 22mm and then run through the rest of my house. My new hot water cylinder and boiler are in my loft...

I haven’t - it’s a Victorian house built in the 1860s which I’m not going to try to seal - the bones need ventilation. I’d be worried about the effect of trying to seal up everything for something like a heat recovery unit to work properly.

Hi, I’m renovating a property and have an under stairs toilet and kitchen cooker to vent. The natural path of the toilet’s vent is straight past the cooker towards the garden wall. I’m considering using 1 inline extractor fan, mounted near the gardeb wall, connected to a duct which then tees...

Hi just for anyone that might find this post - I spoke with Building Control (Lambeth) and they confirmed that a I would indeed need the sprinkler system installed. Plans abandoned!

Seems the main concern is smoke in the stairwell which I suppose is fair enough

I’m assuming 2.6 formalised that decision into the regs and if that decision were out of date I doubt it’d be on the gov.uk website but let’s see what BC say

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/2750/Building_regulations_determination_SB-007-001-005.pdf - unfortunately the 11k sprinkler system is indeed mandatory

Thanks for your help. I emailed council BC yesterday and am waiting for their reply. The house was built in the 1860s - certainly not a new build:) I hope you’re right

2.5 isn’t the issue - 2.6 is the issue. The proposed loft floor is more than 7.5m above ground, and I’d have two floors above 4.5m. So under 2.6 the loft floor would need a separate escape route or I need sprinklers throughout the property. Or does this not apply because it’s a loft, and...

So sections 2.5/2.6 and 2.21 are essentially saying different things… which is a bit confusing. If 2.5/2.6 simply don’t apply because it’s a loft conversion then I guess I’m in the clear

Marty - many thanks; I had not read that section. You have just made my day I really appreciate this!

We’ve had a full measured survey and various engineers drawings done but the floor plans explain the issue best.

Hi. I’ve stripped the house and am currently insulating and decorating. Start on a bathroom tomorrow. ‘Through lounge’ USB being installed end of the month. Here are some floor plans - pre and post work.

Hi, I’m renovating a 3 storey house in Brixton. I’d like to make it a 4 storey building by converting the loft on the 3rd floor. My problem is Approved Document B of the Building Regs, sections 2.5 and 2.6. These require any newly-created 4 storey buildings to have either two staircases or...