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Thanks for replies. Not sure exactly which flavor of ply to go with. It's not a wet area so I wont need WBP which I now think is called grade 3 ply? I definately won't be using shuttering ply though - nasty stuff.

Rafter length is 5.5m. Its definately possible to support the existing rafer (or a replacement) at the mid span point as the two brick walls of the bungalow corridoor run right down the centre of the building (front to back) with the ridge running left-to-right. Currently theres a binder...

I have a 1930 built bungalow that I guess in its early life had a slate roof. The slates got replaced with Redland 49's some time ago. Looking at the roof it sags a bit from gable end-to-end and also from ridge to gutter point. I guess its been this way for many years. Inside theres a...

I need to fit a new floor onto existing floor joists. T & G chipboard seems to be fitted quite commonly nowdays so I am considering this. However, I was wondering if its acceptable to put down 18mm plywood instead? I have had issues with T&G boarding in the past - difficult to get access under...

Thanks for the input, Yes, it's domestic. All pretty straight-forward then. I must say there seems to be quite a bit of confusing/conflicting information kicking around regarding smoke detector installation! Thanks again, Steve

1. Power Source I intend connecting my smoke detectors to an existing lighting circuit. I believe this is one of the valid options, the other being to connect to a dedicated circuit. I think connecting to an exisiting light circuit is a better option that a dedicated circuit as if for some...

I have a very short (approx 600mm long) trimmer made up of two pieces of 120mm x 70mm timber bolted together. This trimmer is supporting timber joists on either side. If possible I would like to drill a couple of holes in the trimmer to route central heating pipes through. Now I understand the...

Thanks to you both for the suggestions. I have thought about using 501's or the WAGO as both are small but we are looking at a hole through 150mm of celotex. All things considered I think I will run with the surface trunking in the back of the cupboard. I thought about this a bit more earlier...

Thanks guys, I appreciate the advice. I guess it is probably best to NOT hijack the zone then! Looks like more holes in the floor joists then (as usual).

Wiring up converted loft, No access from above the ceiling as its a flat roof above. I thought best approach was to run separate cables to each downlight from a main junction box point to avoid having junction boxes in the ceiling which would be a pig to get to and work on. The rooms being wired...

I have just replaced some tired screw type JB's with WAGO type. All seems pretty good but the boxes are a tad small. I wondered if there was a bigger box I could buy that has the built in cord grip? I was thinking of using WAGO connections to wire downlighters using three 8-way wago's to provide...

I would appreciate some advice regarding hijacking permitted zones for cables. Let's assume I have wired a ring main with cables running horizontally between sockets at the same height creating a permitted zone between sockets (standard stuff). Can I put additional cables into this zone other...

I have the floor up in my bathroom and have noticed that the joists are 6" x 3" solid timber and are built into the the single-brick wall at 300mm centres. the actual holes for each joist are about a brick wide (100mm) so I have a 100mm hole in the wall every 300mm. The bricks between the holes...

Gents, Thanks for the replies. It's very unlikely that I will get the 150mm vertical distance between the edge of the ridge caps and the flat part of the EPDM/FELT. I thought there might be a purpose made ridge cap product out there that allows the roof dormer flat roof to start at pretty...

The current design (not built yet) for the flat roof part of my new loft conversion falls back towards the ridge of the original pitched roof with a secret gutter running just beneath the ridge. A number of builders have commented that it would be much easier, and probably better long term to...

I have recently had work done on my property. The builder has departed. I am concerned about some of the work. I have done a sketch of how the toilet waste pipes have been fitted, is this OK? The toilet nearest to the drain is approximately 1 metre to the left of where the pipe turns...

I am in the middle of some building work. The contractor would, with my permission, like to change the 'sarking' from Marine Ply to sheathing grade ply. The specific areas where they want to change the material are on the roof and sides of the dormer. The build-up of the sides is apparently like...

Thanks, the picture pretty much says it all. Hopefully these connecting bits will be included, I will check with the supplier. If they are not supplied are they standard parts and where is a sensible place to buy them for a non plumbing type bloke like me?

I am thinking about purchasing a Grohe allure basin tap (Grohe 19309 and Grohe 33769). From the limited information I have been able to find it looks like the water connections on the 33769 part are quite small threaded inputs. Can anyone tell me what the parts are that I need to make the...

What is the correct way to fix bracing timbers between joists on a suspended floor? Should they be nailed or screwed? Is this specified in builiding regulations? I am specifically referrring to single pieces of straight timber fitted between joists NOT the diagonal braces.