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I'm insulating a lath and plaster ceiling, which means I can't place a vapour control layer beneath the joists as is recommended. I am using a mixture of 170mm mineral wool and 50mm celotex insulating board. Electrical wires run over the insulation (not under it!), with 38mm battons spacing the...

I've been reading about loft insulation and boarding as I'm considering what to do with mine. For reference; I have an old purling style roof. Most of the posts on this forum suggest either insulate between joists and screw boards directly to them (assuming minimum of 7") or cross-batten and...

thanks @chappers . i want to be able to walk on the chipboard, so assume I should also add it underneath the celotex. If i do this, does it create an issue for interstitial condensation, or am I likely to be ok?

I want to insulate my loft with Celotex insulation boards I am planning to insulate between and over the joists. My joists are 90mm deep, but I am planning to use 50mm Celotex between them, followed by 50mm Celotex across the top. I have 2 questions: 1. Should I rest the lower celotex...

Thanks. Will celotex hold weight if laid directly across the joists, or do I need to support it with chipboard underneath (and then more chipboard on top)?

I am planning to insulate my loft ceiling (floor, not rafters). This is just for storage and not habitation. I want to use Celotex insulating board, rather than Rockwool. If I insulate between the joists and then a layer on top of them (to achieve the required U-value), can I then place...

I did some experimenting. Zinsser BIN is definitely the standout result. Worth the extra £££ IMHO. Other acrylic primers simply didn't match the finish.

Thanks John, yes that was the alternative. The forums suggest BIN as a primer works well for MDF because of what you say - it creates a barrier to stop absorption so specifically the edges look nice. I am just wondering if this is enough. Dulux satinwood says it is 'self-priming'; any thoughts...

Thanks, @chappers should I use Zinsser BIN again as it's MDF, or just move to a standard dulux undercoat?

I am trying to make some furniture using MDF. I have been recommended to 1) Sand with 120 grit, 2) prime with Zinsser BIN, 3) Sand with 220 grit, 4) paint with Dulux Trade Satinwood. I am at the second step, and have just applied my first coat of Zinsser BIN with a gloss roller: You can...

I am trying to make some furniture using MDF. I have been recommended to 1) Sand with 120 grit, 2) prime with Zinsser BIN, 3) Sand with 220 grit, 4) paint with Dulux Trade Satinwood. I am at the second step, and have just applied my first coat of Zinsser BIN with a gloss roller: You can...

I want to make a few cabinet doors for my project. I have cut 22mm MDF to size, and want to add some basic decoration. Some "beading" like the attached image would be nice - sort of a Victorian effect. Does anyone know where I can get this? I've spent hours searching but maybe I am googling...

I have some shelves in an alcove I need to light. I'd like to use recessed spots in the shelves, which are 22mm thick each. I'd like the lights to work on a switched 13A circuit rather than mains power with a transformer. Does anyone have any recommendations that they've used?

No, I would need to either mount or recess them into MDF shelving. Unfortunately I can't find any "cabinet" lights like this that are designed to be wired into a lighting circuit.

I am looking for some downlights to add to an alcove. I have found these. They are DC12V LEDs. I want to have them wired to the ceiling light circuit, so I can turn them on/off via a switch at the wall. Is this possible? If so, would I be correct that I'd need to buy a transformer and ask...

I am going to purchase some high end AV equipment and would like to protect it against unexpected surges (e.g. lightning). What's the best way to do this? I know I could buy something like a belkin surge protector to plug into the wall, which covers 650 joules...

I am trying to create the following cut to form the edge of a countertop surface (for an alcove): I have a 9mm piece and 2 x 18mm pieces, but how can I create the arc in the middle with an 18mm radius? Is there a router bit I need for this? Thanks

Has anyone used ultralite MDF for cabinets? If so, are there any disadvantages vs. standard MDF? E.g. does it take spax screws just as easily?

Context: I am building a set of alcove cabinets for the first time. Just a DIY project to learn about woodworking. As this is my first attempt, I am making everything out of plain MDF. I have 3 questions: - When making 'support' pieces (e.g. cabinet bases, etc), is there much difference...

I have a 1908 lath and plaster ceiling. A loft fitter came round and said that it would be no problem to install a loft hatch to access the ceiling void. However, I've heard this is near-impossible to do without destroying the ceiling. Does anyone have any stories of success/failure?