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Hello All. My oil boiler (Worcester Danesmoor 15/19, year 2000) was on all day yesterday with no issues, but today it keeps locking out. It fires up ok, but a few minutes later, it stops burning, and then locks out.... which keeps repeating if you reset it. Things I have checked so far: 1...

Many thanks for the replies. Just to play devil's advocate here then, how far would it have to be moved before it is classed as a new install? Would a 5cm move result in having a new boiler? Is it changing the pipework that is the trigger? Or the flue? What if the pipework was changed but the...

A new installation I could understand making it compulsory to upgrade to a condensing boiler, but surely moving it a few feet across the floor does not trigger a mandatory upgrade?..!

Evening All. As part of an extension (self) build, my boiler, which is oil fired, needs moving. Am I able to do this myself? It is a standard worcester danesmoor oil boiler (non condensing, year 2000) The piping is very simple, and not being moved very far, so I could easily do that myself...

Does anybody have a diagram or drawing showing how the lower corner of a window sill is constructed, and how the DPC and cavity closers join/overlap to form a waterproof joint? I have recessed windows (i.e. they sit in the middle of the wall), and will be making a sub-sill from creasing tiles...

The building regs say a DPM should be 1200 gauge - but what about DPC? The DPC's you buy in Toolstation and the like seem to be thicker than 1200 gauge, but what is the actual requirement? Could you use a sheet of DPM cut into strips as a DPC? - for example, as a cavity tray above a lintel...

The pole plate (I think it is called that - I.e. the wall plate attached to the existing house on a lean to roof) - must you remove all the rendering before attaching it, or can you leave it and screw directly into the rendered brick... providing the render is sound of course. It is a right...

Evening All. I am about to start constructing the roof on my extension, which is a typical single storey, with a lean to roof joining the house. The 'lower' wall plate, I.e. the one sat on the blockwork is best made from either 50x100 or 75x100 timber by the sound of it, to give enough to nail...

Interesting, many thanks. So taking the Fibotherm then and using my calc above - 1.49N/mm2 would equate to 2,280kg safe load on a 150mm end bearing.. is that right? Still a decent amount of weight....

Hi All... Possibly a stupid question, but here goes - how much weight can a concrete block (7.3N) and a Thermalite or Fibotherm (3.6N) actually support before it crushes? Reason for asking is that I have 4m lintel (Catnic extra heavy duty) going in above some bi-fold doors - its a single...

Thanks. One end leans out and one end leans in. The lean out end I think is easier as you can somewhat make up the difference with the final rendering. The lean in end is making me scratch my head. I think you are right, build it plumb and then tie in as best you can once you get close to the...

Hello All. Currently building an extension, and am sat at DPC level. The house I am joining to has walls that are not plumb - only slightly out, but makes a difference of a couple of cm or so once you get up to around 3m. How do you tie the extension into this? Other than just making the...

Many thanks. So basically, it is worth identifying the manufacturer we will use now and working to their specification. I think I will indeed start a course below floor level - which will also involve stepping down the DPC one layer below the door... need to check with the BCO on that before I...

This is doing my head in! Despite the reams and reams of information available on this I cannot get it clear in my head. I want some standard sized bi-fold doors that are roughly 4m in width, and standard height. I am about to build the aperture, and I want to know the exact size between the...

Thanks.. yes I saw that other thread. It doesn't look conclusive though..? One of the diagrams I have seen is on the LABC website, which shows it cutting the whole way through, but this contradicts what the BC inspector is saying. I simply don't understand how a 50-60mm deep DPC is better than...

Evening All. This seems to be one of the few topics that the Internet does not contain endless chapter and verse on... and that information that is available is less than clear. I'm talking here about the vertical DPC at the join of a new cavity wall for a house extension to the existing cavity...

Evening All. I have a 1950's house - standard brick cavity wall. My window frames are fixed in the middle of the wall - i.e. they appear to be screwed into the gap where the cavity is, rather than in either the inner or outer brick leaf. I am about to build an extension, and would like the...

Hello All. 1950's house - when we moved in a few years ago, it had poor heating and poor ventilation. Condensation and black mould was the result, unsurprisingly. Heating has been greatly improved by way of new rads and a log burner. But the ventilation is still really bad. Thinking that...

I've just used Quickstep laminate flooring in my bathroom. Its suitable for bathrooms, good value, and looks really nice. Not sure I would even consider anything else now to be honest. Works with underfloor heating as well, if you have it.

Dear all, currently decorating a bedroom and above the main window the plaster was bulging and generally not looking good. I have knocked a lot of it off, and underneath there is a lot of salty residue that looks like it has literally pushed the plaster off. The house is 1950's with a cement...