dpc

We have identified a damp issue which is much worse than we thought. The downpipe from the gutter had been failing for some time (bodge job by the roofers). The frame for the front entrance rotted and we had to get the frame nearest the corner cut out and replaced and had someone in to do the...

So I live in a house buuikt in 1890. It’s an end terraced house down the side of the house the bottom course of bricks is very weathered and the mortar is in a bad way. The side of the house is rendered above the DPC. There was a an injection damp proof course done before we moved in and all...

Right, here we go.. I have a detached garage built in the sixties with a substantial plinth. The garage is now gone allowing me to have a good look at the plinth. It's square and has a depth of over 150mm. It's downside is that there's no DPM. The plan is to build a garden office on top of...

Occasional DIY bodger here, haven't done external work before. The problem is damp on the floor in the garage which was built as a recent extension before I bought the house. There's a drainage channel on the outside of the wall that isn't rendered and I think the water's coming in there...

Hi Appreciate some advice please Side of a double length garage build 1920 ish, probably 15 metres long. Wall is solid brick wall, but not really - never seen this type before, it is two courses bonded with a few odd headers every 7 or 8 courses with a 1-2cm cavity. Due to weathering over...

Hi! I’m looking for some definitive advice on re-pointing my house, specifically regarding the slate DPC level please. House is 1920’s cavity wall, brick and lime mortar. DPC is single layer of double course slate. The lime mortar is solid (not crumbly or soft), but on the rear elevation we...

Please see the video attached - it explains everything quickly. This is a 1936 house, with cavity walls. The walls contain rockwool type insulation and the builder thinks the bricks need a coat of water repellent. I also intend to clear the cavity at some stage. However, this post relates to the...

Hi all, We're getting pretty close to completing on a 1920s/30s solid wall semi, so I've decided to finally stop lurking and make an account here. We had a survey done prior to exchange which noted high damp readings in a couple of places, as well as a few potential causes: 1. Pebbledash...

Hi All, As part of a full renovation to a 1906 bay fronted terrace, I have been attempting to solve a number of damp issues that have affected the downstairs front room, largely around the bay window and porch areas. I think (hope!) I am mostly there but am somewhat stuck on how to detail the...

The previous rendered plinth was swollen and has been removed. It appears the ground has been raised with concrete by previous owners to create a slope away from the house and the original victorian DPC (some sort of tar) is now only about 2 inches above the ground. There is no particular damp...

Hi, We had a new patio laid a couple of years ago. We had some concerns at the time (sandstone slabs laid on a ring bed of cement not a full bed), slabs too high v damp proof course and air bricks, slabs built right up to house walls. We've started to get a lot of woodlice in the house and are...

~Vaulted kitchen asymmetric roof single storey extension ~Block work with cavity supporting Catnic type RSJ ~Bespoke glazing (2 x triangular) on RSJ ~Sliding doors under RSJ ~Ali cladding C section over external of RSJ My concern pre door/glazing install is the detail on the RSJ with the...

Hi Have recently repointed my west facing (prevailing weather) wall and it all went well. I'm not sure what to do with the dpc course though. It's slate but has come away with the old pointing in places (I've not raked it out). It feels like a bad idea to point over it and create a moisture...

Solutions for this cavity against the wall below door frame. Looks like previous had new flooring installed. The threshold going outside is fine.

Could I get your thoughts? Two years ago, a contractor completed phase 1 of my renovation, creating a passage to an annex. This resulted with a 7cm step down. I now plan to raise the floor level but noticed efflorescence on the concrete at the patio doors. Can I use a Bituthene layer to close...

I live in a 1920’s semi-detached house with solid walls. As we’ve moved into winter/wetter weather I’ve noticed a tide line beginning to appear on part of the hallway wall leading to the stairs. The other half of the hallway closer to the front door does not have this issue. We have also...

Hi folks, I just stumbled across this site and its going to be a huge help (I hope). Just started renovating a property purchased on auction. It's for me to live in not rent. It is in poor condition and although I'm not a builder I am a quick learner and willing to give it a go. I have huge...

Hi All, Just carrying out a diy project of installing new casement window where old wooden sash window was. I am confused regarding 2 points. Firstly the old wooden sash frames had vertical DPC pinned into the frame and pushed into the cavity. Would I need to replace this with UPVC casement...

Good morning, I am looking for some advice regarding my proposed solution to repair a 1920's concrete floor. The internal concrete floor is about 2 courses above the DPC. Consequently, the DPC was being bridged causing damp. I have dug a 6" trench around the perimeter of the room, to...

Hello, could do with some advice if possible. I am interested in buying a detached property which is roughly 100 years old. No DPC has been fitted. But instead 62.5mm of Celotex has been fitted throughout the house. (The house was renovated over the last year or so) The house is known to of...