Tanking a basement

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kurt535

Original Poster:

3,559 posts

118 months

Friday 6th October 2017
quotequote all
Has anyone here successfully tanked their basement? We are talking a Georgian vaulted space, one of several underneath a former hospital which has been sliced and diced into various flats, etc.

The ground floor flat I'm looking at comes with the basement which has been bricked up from the one next to it so it's self - contained. Dealing and solving damp issues in listed buildings above ground is something I have a lot of experience in but below ground is very new to me and something I have always avoided taking on.

Ive been doing lots of research online into available methods but reading anyone's experiences on here would be very valuable.

Ty


kurt535

Original Poster:

3,559 posts

118 months

Friday 6th October 2017
quotequote all
Three walls - I think - are outer skin and one wall is internal to the next vault.

I went to the link as well, lots of new toys there; any idea whats the level of complexity in me and my boys doing it as opposed to subbing it out? open ended question for sure but some jobs i know when i am beaten so don't start them smile

kurt535

Original Poster:

3,559 posts

118 months

Saturday 7th October 2017
quotequote all
thank you for the responses.

all valid and most helpful.

using the pump method is preferred as it appears to remove hydrostatic pressure. fitting two pumps looks the best belt and braces approach too.

im going to speak t the conservation dept on monday and get an idea on their outlook.

one thing i am not entirely clear on is as the basement already exists, do you need permission to convert? on the basis its grade 2* i suspect id have to!

kurt535

Original Poster:

3,559 posts

118 months

Saturday 7th October 2017
quotequote all
Does make me wonder what tanking methods 3rd Reich used for their bunkers 5-10 stories below ground!

seriously though i am pretty sure I will run with a pump method to take hydrostatic pressure off walls facing external earth. I appreciate they are harder to sort out if they go wrong but I reckon such a system is easier to sell on to next buyer