mostly_wrong
Member
- Messages
- 18
- Location
- South East
Hi all, would be really grateful for any thoughts here as i'm not even sure of the right terminology so any contributions appreciated.
I have an 1880s semi which needs renovation. We have an old uPVC patio doors that open inwards from the middle dining room. Directly under that is an air brick which has perished and been covered over with a temporary aluminium cover by the previous occupiers. Late last year the threshold above this area caved in from the inside. It seems to be a screed overlaid on top of a timber sill as shown in the middle.
There has clearly been lots of water ingress before as the joist to the left and sill plate have woodworm exit points.
I had water ingress from the edges last year but that I thought I'd resolved that by putting on a missing weather bar. However with the heavy rain today i've noticed it return. Lifting the boards i could see drips coming through from under this screeding layer (red arrows). Then patches would appear on the top of the screeding. Nothing was dripping down from the door onto the screeding, the weep vents were working and that area was relatively clear.
Here's a picture from outside (i currently have scaffolding up around there for the roof).
I think the patio ground level has been raised slightly in the past and i can't tell where the DPC is. The edge under the screeding looks quite straight in parts where the mortar hasn't spilled over so not sure if they tried to install something there. I was expecting the gap between the door and the threshold to be compromised, and there isn't much of a pitch on the threshold/step(?) to channel rain away in parts, but the ingress seems to be from underneath that anyway.
As I said the property is very much in need of renovation so I was prepared to change the door anyway, but i'm not really sure what trade would be able to address this or in what sequence. So i'm in the market for both short term patches and long term best practice. Really grateful for the knowledge and contributions on this forum, I would be (even more) lost without it.
Cheers
I have an 1880s semi which needs renovation. We have an old uPVC patio doors that open inwards from the middle dining room. Directly under that is an air brick which has perished and been covered over with a temporary aluminium cover by the previous occupiers. Late last year the threshold above this area caved in from the inside. It seems to be a screed overlaid on top of a timber sill as shown in the middle.
There has clearly been lots of water ingress before as the joist to the left and sill plate have woodworm exit points.
I had water ingress from the edges last year but that I thought I'd resolved that by putting on a missing weather bar. However with the heavy rain today i've noticed it return. Lifting the boards i could see drips coming through from under this screeding layer (red arrows). Then patches would appear on the top of the screeding. Nothing was dripping down from the door onto the screeding, the weep vents were working and that area was relatively clear.
Here's a picture from outside (i currently have scaffolding up around there for the roof).
I think the patio ground level has been raised slightly in the past and i can't tell where the DPC is. The edge under the screeding looks quite straight in parts where the mortar hasn't spilled over so not sure if they tried to install something there. I was expecting the gap between the door and the threshold to be compromised, and there isn't much of a pitch on the threshold/step(?) to channel rain away in parts, but the ingress seems to be from underneath that anyway.
As I said the property is very much in need of renovation so I was prepared to change the door anyway, but i'm not really sure what trade would be able to address this or in what sequence. So i'm in the market for both short term patches and long term best practice. Really grateful for the knowledge and contributions on this forum, I would be (even more) lost without it.
Cheers