DPC injection kits???
Discussion
Is there a particular one that's better or worse than another??
As part of a small extension I'm having done I need to reduce the level of the existing DPC so I can lower the floor of the utility room at the side of the house. This is needed to increase the ceiling height in the small bedroom above so it can have a bed deck installed. My plan is to excavate down to the required level to install a timber floor but need to reduce the DPC level relative to this drop. Injecting in a new one seems to be the easiest and cheapest way to do it. In total there would be about 5 linear metres to do.
I was going to just put in a solid floor but the ground condition is so s
te I've been advised against it. Also considered block and beaming it but seems mega expensive vs some wood, joist hanger and some visqueen.
Thanks in advance.
As part of a small extension I'm having done I need to reduce the level of the existing DPC so I can lower the floor of the utility room at the side of the house. This is needed to increase the ceiling height in the small bedroom above so it can have a bed deck installed. My plan is to excavate down to the required level to install a timber floor but need to reduce the DPC level relative to this drop. Injecting in a new one seems to be the easiest and cheapest way to do it. In total there would be about 5 linear metres to do.
I was going to just put in a solid floor but the ground condition is so s
te I've been advised against it. Also considered block and beaming it but seems mega expensive vs some wood, joist hanger and some visqueen.Thanks in advance.
Cheers.
Solid floor is tricky as the ground condition is so ste it's questionable as to how long it'd take to crack. Foundations are going to be piles. I thought about block and beam as you could actually sit these on the existing foundation edge as a bearing and run tanking up to the existing dpc.
To be honest though it's a utility room and I'm going to leave the wall finish as is. So if the small bit of wall below the dpc is a bit damp would it matter? If the joists and floor are isolated from the wall with visqueen they should be fine. Obviously the floor is well ventilated underneath.
My old man (worked as a qs in housebuilding for decades) reckons it'll be reet. I'll have to talk it through a bit more with my builder. AMD, as well as injection dpc I could also add an damp proof paint up to the existing dpc.
Cheers.
Solid floor is tricky as the ground condition is so s
te it's questionable as to how long it'd take to crack. Foundations are going to be piles. I thought about block and beam as you could actually sit these on the existing foundation edge as a bearing and run tanking up to the existing dpc.To be honest though it's a utility room and I'm going to leave the wall finish as is. So if the small bit of wall below the dpc is a bit damp would it matter? If the joists and floor are isolated from the wall with visqueen they should be fine. Obviously the floor is well ventilated underneath.
My old man (worked as a qs in housebuilding for decades) reckons it'll be reet. I'll have to talk it through a bit more with my builder. AMD, as well as injection dpc I could also add an damp proof paint up to the existing dpc.
Cheers.
Edited by dave_s13 on Sunday 5th March 23:21
To be fair, it's an amatuer drawing...... I did it!
This is a bit newer.
And yes, there will be a couple of existing air bricks above the new floor level. Like I said, I'll be leaving the room essentially unfinished in terms of wall finishes. As long as the floor joist don't get damp then I can't see it going badly wrong. I've just planned for a single small radiator and there will be a boiler,fridge freezer, drier (on constantly) and washing machine. They should add a bit of warmth. I thought about ufh but it feels like overkill.
Thanks for the responses. :Thumbup:
This is a bit newer.
And yes, there will be a couple of existing air bricks above the new floor level. Like I said, I'll be leaving the room essentially unfinished in terms of wall finishes. As long as the floor joist don't get damp then I can't see it going badly wrong. I've just planned for a single small radiator and there will be a boiler,fridge freezer, drier (on constantly) and washing machine. They should add a bit of warmth. I thought about ufh but it feels like overkill.
Thanks for the responses. :Thumbup:
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