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Hi folks I have some steel work to paint for our outbuildings. It is exposed on the inside of the unheated building, though mostly covered and protected from rain. Is currently bare steel and not yet installed. Any recommendations for a suitable paint? I can get Johnstones Agricultural Oxide locally, though I think it needs a primer (Johnstones quick dry zinc phosphate possibly?) I've also seen this Agrox stuff, I think it can go straight on. The picture look suitable agricultural, and this from it's description sounds appropriate: "Agrox Grey Oxide Paint has been specially formulated to protect agricultural and industrial metal structures exposed to harsh environments. Ideal for use on barns, haysheds, and similar buildings"

Ok, thanks for the replies.

Hi folks. What are people's opinions on sand cement render mix? 4:1 then 5:1 seem to be commonly recommended on the internet, but I'm unclear on the best approach to the addition of lime/plasticiser/waterproofer. I've concrete block garden walls to do, and at some stage single skin garage walls, also concrete block. All will ultimately be painted white. Thanks

Hi folks Any advice on where to get 15mm plastic corner bead in Norther Ireland, at a good price? Seems that it can be got online for around £1 per m, but of course no one delivers to NI. The best price I have so far locally is £1.55 per m. I've quite a bit to buy so it makes a difference. Thanks

I recently got a load of C30, all the local suppliers were very simalar prices, and at the lower end of the scale you've been quoted. You could ask the more expensive ones why, are they further away or delivering in smaller loads or something. Get more quote to see if there's some simalar with costs?

Hi folks, There's one last bit of concrete floor to pour for my garage /outbuilding. 8 x 6m, 150mm thick C30 with A252 mesh. It is however bounded on 3 sides (the two 6m wides ends and one 8m long side) by existing concrete slabs. Should I put in foam expansion strips along these edges? Concrete shrinks when it sets doesn't it, so presumably gaps will open up anyway. So just fill them with suitable flexible sealant afterwards?

Finishing not yet confirmed, tho will likely be some form of sealer/paint. It's probably +/-5 or 6mm from nominal. I can scratch in about 1mm.

They also have this, which has 250mm dia diamond disc. It's a big enough area, about 70m2. I wouldn't fancy going at it with anything handheld!

Hi folks I have a concrete floor for a garage that was poured late last year, it unfortunately had some rain on it before it was set so the top surface is not great. Probably be quite dusty when I finally get a roof over it and it eventually gets a chance to dry out. I'm wondering if it's worth trying to grind back, my local hire place has this sort of machine: Is this the right approach to improving it? Or something else? Or maybe I'm over thinking it for a garage and should just live with it. Thanks

Hi folks Any recommendations for a supplier of corrugated roof sheeting in NI? I'm after rolled material for a curved roof for a workshop/garage, the likes of 13/3. Thanks

You were lucky. I tried that 3 years ago, but no discount. Wasn't a great experience to be honest, and looks like i need need to go back to them as one of the cylinders appears to be leaking...

A Shelly relay will allow remote (via app) control as well as a switch in the cottage for people there to use, it won't prevent a simple switch being used as well.

Anyone tried to re-calibrate a Huepar laser level? Mine had a bit of a fall resulting in it being out by a couple of mm per m. Couldn't find anything on t'internet other than only the manufacturer can calibrate, and looking inside it after disassembly there is nothing terribly obvious to make fine adjustments. So, feeling I'd nothing to loose I had a go with some hot glue to rebalance it, carefully applying blobs to the 'high' side. Manged to get it within 1mm at 7m, which will do well enough for what I need. Perhaps there is a proper way to do this, rather than my bodge...

Thanks for the suggestion. I phoned around a few places. Macblair have gypsum products, but just the rolls. Jp Corry do Siniat but also just carry the rolls. I did however manage to get something suitable today. It's a plastic unequal angle with paper bonded to it. Apparently hardly anyone buys it now and I was lucky to get it. Just put it on and really pleased with it so fat. Nice and straight, easy to fill around.

This Siniat GTEC stuff looks gd, tho I'm still to find somewhere in NI that sells it, or an equivalen. Any suggestions? Presumably it would be better than the rolls that have two strips of metal, but at at least I can get them online.