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So 100ml PIR in the gaps and then lengths of 25mm PIR on top? Did I read somewhere I need to leave a 25mm gap between the floor and the bottom of the PIR, meaning it would sit 25mm proud of the joists?

Thanks cdbe Issue I have is that the roof at its highest point from the top of the joist is only 1.16m, so 100mm PIR effectively takes me to 1m at the highest point and barely any room to get in and around. I could possibly go 25mm PIR on top if you think the insulation benefit of PIR that thin...

Hi all, Lived in house 15 years and loft insulation is still from when we moved in (house is 1970s); very patchy and the loft floor has been partially boarded with whatever wood the previous owner had laying around. Joists are 50 x 100 and insulation is fibre glass (see picture?), absent in...

sorry, been away, thanks for the reply! No roof leaks that I am aware of, and no window leaks. No wet washing. All of the upstairs bedroom windows have suffered from this issue to some degree. Venting the small window certainly helps keeping it manageable but I agree there is an underlying...

No-one? :(

Just posted up a new thread on this and would appreciate any thoughts from contributors to this thread if possible please > Prep and fix now, or wait?

Hi all, I posted this thread in November about issues having redecorated by daughter's bedroom >>> Possible Efflorescence To summarise: ...lots of damp problems and black mould and flaking paint around window ...scraped it all back and removed all window frame sealant as it was mouldy and in...

Just to add, the part where 'mould' and bubbling is happening was never repaired or touched up, just painted!!!

Thanks again for the replies. I think it was just condensation - windows have been vented since and it hasn't returned. I've been DIY'ing prepping walls forever and I've never had this other problem - it;s also in an odd place where there were no issues before. The 'white furry mould' does...

Thanks for the reply (y) I vented the windows and by the evening the top part had dried out, so it must have just been on the surface else it would still be wet. I'll scrape out all salts/crystals and prep that area and re-finish, it;s just in a very odd place for damp to be getting to and...

Hi all, Having spent a lot of time and effort redecorating daughters bedroom and fixing (at least I thought I had), a damp issue, are things now getting worse? Highlighted area where damp, black mould and peeling paint used to be before decorating: Weird furry mould (?) where there was...

Awesome, thanks! If those valves don't close, when you say bung the outlets - do you mean literally bung something in the outlet inside the bottom of the cold water storage? That would be challenging, not sure how I would go about that? :unsure:

Hi all, Need to replace my shower pump but have run into a small issue: Pipes and fittings are very close to fitting. I can possibly try and get away with the two outlets as you see pictured (two at the rear, not push-fit connected yet), although it will be a little high. This leaves me with...

Yep, used to be a wooden drawstring blind which was never fully opened with the window staying shut. Flaking got worse by the next day. Tried to scrape it all off again (but seriously, not easy scraping paint off a wall where only some of it has flaked). Ruining a lot of hard work, but it is...

Thanks opps. This window does get a lot of condensation. The seal blew last year so prior to decorating I replaced the whole double glazed pane. The wall did have a lot of mold and the plaster (trying to recall), may have been a little soft in places due to the mold/damp. I ensured the best I...

Hi, little background. Around daughter's window was a lot of mold and paint coming away from wall. Over the course of a few weeks: Cleaned off mold with thinned bleach Scraped the paint off, chipped away the loose (and maybe previously damp plaster). Some of this was coming away in 1" chips...

Will definitely go for PIR under the low boarded out part, but what do you mean by using PIR board instead of legs - lay the PIR at 90 degrees to the joists and just sit it across the rock wool filled cavity, then build a 'platform'over it?

Thanks for the response(y) Taking another look, and based on the attached image, I think you're right and fully boarding it out will be the wrong choice. However, I need the space for storage (its pretty rammed up there), so need to retain some boarded up area...also just measured, and height is...

Hi all, Had a small leak in the roof last year and about a month ago I went into the loft and the whole roof was literally dripping with condensation. Now it has cleared I need to give the loft a proper do-over. Joists look to be around 100mm and insulation is throughout - some areas up to the...