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Hi guys, BACKGROUND New UPVC french doors have been fitted, and have plastic cavity closers fitted to the vertical reveals (the horizontal, top one, is a steel lintel, with keying gooves. I need to plasterboard all the reveals. For the verticals (where cavity closers are), I intend using...

Guys I am looking at the second flat roof on the property , and all of the firrings (aks fillets) [the sloped timber cross beams that go across the kists, and give slope to the flat roof), are all rotten within the first 6 to 9 inches. Further along, from , say the 12 inch .. 18 inch point...

Awesom - thanks for that advice :)

Hi JobAndKnock, looked on amazon, and came across a couple of options, which of these would you be inclined to use (see links)? Flooring screws on amazon - seem to have thread then smooth bit then thread or (what seem to be the more general) : or these more general ones (which seem pricey...

Guys I bought some 6.5mm (100mm long) concrete screws (which came with a free Torx T30 "bit). I decided to do some tests on some old masonry (before I do the "real" job. Glad I did, because when drilling Pilot holes with 6mm SDS masonry drills, I found that the screws would only reach about...

Forgot to say - thanks for all the advice guys, much appreciated

And for the (gently) sloping side [which is there to cause a slop for run-off], is it norma to try and cut the Fascia so the bottom of the fasica is "true" (parrallel with the ground) whilst top of fasica "follows" the slope ? [uPVC fascia]

So, I guess fit the fascia first, then the OSB ? (I havent fitted either yet).

Flat roof install, DIYer. I haven't yet put the new OSB on, and when googling, I found some images where the OSB seems to extend out, and the fascia board is under the OSB, and others where the top of the fascia board (uPVC 18mm thick - from eurocell) is level with the upper surface of the OSB...

Cool - I think I'll screw it. Will chipboard/flooring screws tend to countersink themselves (into 18mm OSB) ? - as I dont want to countersink myself if not needed. (Also - pilot holes yes or no ?).

Hi guys - am going to do a flat roof repacement for my extension. I have sort of settled on 18mm OSB t+g for the boards. Question is, do I really need 63mm nails for this ? If so - it implies a "Pasload" type nail gun, which are pricey (circa) £500+. Thoughts?

Thanks mate. Wish I'd know this before I started. Seen videos online where people were using a cavity closer.

No it already exists (snince 1983) , so I'm just wondering how to screed over the existing cavity (which is currently fresh air).

Thanks for the reply. So, just so I'm clear, you are saying take out the blocks and bricks down to 225 below floor ? - Wish I'd never opted for French doors now - quite a lot of work !.

Background: Old Cavity wall (which had a single door in it), has been removed, ready for fitting new wide french doors. The brick course where the door cill+frame will go has had to be "shaved" by 15mm, to allow the frame to fit (after helpful advice on here). [Note - on the photo, the bricks...

I would have thought plywood is just as bad in terms of a nail through the edge (as opposed to through the face)

So - if I understand correctly, lath on underside of OSB (which means OSB will hang over joists, rather than being flush with them), then drip ege fix into lath ? (OSB is oft. used on roofs in my understanding, so I wonder what professional roofers do ?)

Screw the baton into fascia board (only?), or through to OSB as well ? cheers

I am replacing an old flat roof. It is ply, but I am going to use 18mm OSB. Currently, the Fasica boards are nailed into the joists (fine ?), and also into the edge of the ply board. The drip edges (drip battens I think they are called), are also nailed "through" the top of the fasica boards...

I have a 3.6 m x 3.6 m single storey outbuilding, and am planning on installing 2 x 2.5M sliding patio doors in the north and east walls. The wall construction is cavity wall (brick outer, aircrete block inner. The aircreate block skin has a single course of bricks on it at the very top. [I'm...