I asked a question about this a while back but things have changed a little so putting this back up here. As this bit of the house isn't original it possibly isn't quite the 'Period Property' part of the house, but nonetheless I bet a lot of similar age houses have these rooms tacked onto the back so may have experience.
I have a utility room extension at the back of the outrigger in a Victorian terrace. It abuts the former external wall and there is a step down from the suspended kitchen floor (original) to the concrete utility room floor (extension). This room is isn't particularly well built but I'm trying to make the most of it. There are other issues which haven't yet been rectified and mean that it won't be perfect anyway e.g. ground levels next door are higher than my floor levels on one side, sand and cement render on the outside.
It transpires that the current ceramic tiles have been laid over asbestos vinyl tiles. These viny tiles are due to be removed with a pva solution being applied over the bitumen and then a sealant paint ( Idenden ET10 is given as the example product). The builder will then level the floor so that new vinyl can be laid on top.
A couple of the ceramic tiles were/are slightly loose and I don't know if this was because some damp has been coming through the slab or due to it being slightly uneven already. I'm a bit concerned that if there is a bit of damp then the levelling compound alone won't adhere properly. I see that there are options for a liquid DPC and that if the concrete is slightly damp then this should be applied before the levelling compound. But, I'm also reading various things about this sort of stuff pushing damp up the walls instead as it goes against the concept of breathability.
Any suggestions for how best to approach this? The asbestos people will apply the sealant and everything will be enclosed so there won't be time for a good look at the concrete. As the room steps down, I am hoping it is somewhat isolated from the suspended floors of the kitchen, similar to when people ask if external ground levels are below internal floor levels. It doesn't need to be perfect and its just a case of trying to make improvements so that the room is more liveable than it currently is.
I have a utility room extension at the back of the outrigger in a Victorian terrace. It abuts the former external wall and there is a step down from the suspended kitchen floor (original) to the concrete utility room floor (extension). This room is isn't particularly well built but I'm trying to make the most of it. There are other issues which haven't yet been rectified and mean that it won't be perfect anyway e.g. ground levels next door are higher than my floor levels on one side, sand and cement render on the outside.
It transpires that the current ceramic tiles have been laid over asbestos vinyl tiles. These viny tiles are due to be removed with a pva solution being applied over the bitumen and then a sealant paint ( Idenden ET10 is given as the example product). The builder will then level the floor so that new vinyl can be laid on top.
A couple of the ceramic tiles were/are slightly loose and I don't know if this was because some damp has been coming through the slab or due to it being slightly uneven already. I'm a bit concerned that if there is a bit of damp then the levelling compound alone won't adhere properly. I see that there are options for a liquid DPC and that if the concrete is slightly damp then this should be applied before the levelling compound. But, I'm also reading various things about this sort of stuff pushing damp up the walls instead as it goes against the concept of breathability.
Any suggestions for how best to approach this? The asbestos people will apply the sealant and everything will be enclosed so there won't be time for a good look at the concrete. As the room steps down, I am hoping it is somewhat isolated from the suspended floors of the kitchen, similar to when people ask if external ground levels are below internal floor levels. It doesn't need to be perfect and its just a case of trying to make improvements so that the room is more liveable than it currently is.
