Loft conversion part 27. Insulation PIR board between rafters, expanding foam, foil tape & electrics
Рет қаралды 35,551
4 жыл бұрынWelcome to part 27 in my series of loft conversion videos where I show you the viewer my DIY loft conversion from start to finish. In this video I cut rigid insulation board (PIR board) and fill between the rafters, fill any gaps with expanding foam, tape the joints with aluminium foil tape, and do some first fix electrics for my downlights and switches.
For the tools used in this video click here:
Makita LXT 18V Impact Driver & Drill plus batteries (Twin pack)- amzn.to/2txC1Rn
Makita LXT 18V 3Ah Li-ion batteries - amzn.to/304y1nH
Stanley Fatmax folding jab saw - amzn.to/3epVpTj
Stanley 8m measuring tape - amzn.to/37XWzBu
Stanley claw hammer - amzn.to/2IP7mDg
Draper Expert Tin Snips / Shears - amzn.to/2SYtS2Y
Draper 9 piece hole saw kit - amzn.to/2GVU5ry
Hand saw - amzn.to/38QudtA
Roughneck Pry bar Set - amzn.to/37Ek5mA
For similar products to those used in this video click here:
Aluminium foil tape - amzn.to/35Cr5Rv
Expanding foam - amzn.to/35Crsvn
Foam gun - amzn.to/35Crsvn
SUBSCRIBE - you can subscribe to my channel here: / pousearoundthehouse
For more loft conversion videos click here:
Loft conversion part 1 - Removing the insulation & lime mortar - • Loft conversion part 1...
Loft Conversion part 2 - Cutting and fitting the joists - • Loft Conversion Part 2...
Loft conversion part 17 - Velux window install and slate the gable end - • Loft conversion part 1...
Loft conversion part 26 - Slating the dormer - • Loft conversion part 2...
**All domestic electrical work in the UK must meet the requirements of the Part P regulations. If attempting any electrical work yourself you must consult with your local authority building regulations department to ensure the work is carried out safely and checked by an approved inspector following completion.**
The Amazon links above are affiliate links. As an Amazon associate I earn from qualifying purchases
For more DIY, HOW TO, HOUSEHOLD TIPS and PRODUCT REVIEW please subscribe to POUSE around the HOUSE.
Thanks for watching!
Music Credits
Artist - Pouse Party
Song Name - Intro / Outro
Artist - The Elephant Rescue Plan
Song Name - Lights
#Insulaterafters #PIRboard #Loftconversion
@phoneuser51 4 жыл бұрын
Thanks mate for all you help. Remember when you did the light changing video, I managed to change my ceiling rose to a nice chandelier. Once again thank you for all your help.
@POUSEaroundtheHOUSE 4 жыл бұрын
Nice work!
@aryaa3998 Жыл бұрын
I love watching your videos, it's as raw as it gets. Thanks for sharing.
@zbiku82 4 жыл бұрын
Absolutely amazing series! I started yesterday and watched whole thing through! Though.... Listening the same two songs throughout the series makes me want to throw my phone through the window!
@POUSEaroundtheHOUSE 4 жыл бұрын
Thanks for the feedback, although there are more than two songs, same band though!
@fredbloggs509 3 жыл бұрын
Hi Pouse. Started watching your series a few days ago, very informative but wish I'd known about it months ago, when I started my own loft conversion. Thanks for reminder on smoke alarm :)
@POUSEaroundtheHOUSE 3 жыл бұрын
No worries, if you're doing it in compliance with the building regs then they will tell you everything you need to do to get it signed of. Best of luck with it.
@stubbk3 3 жыл бұрын
this series is priceless as i attempt a loft conversion myself
@POUSEaroundtheHOUSE 3 жыл бұрын
Glad you're enjoying it. Hopefully I'll upload all the footage one day!!
@neilphelps8618 4 жыл бұрын
This is a job that I’ve been meaning to do for a while and your video has given me the motivation to crack on. Thank you 👍
@POUSEaroundtheHOUSE 4 жыл бұрын
Best of luck and invest in a good mask!
@neilphelps8618 4 жыл бұрын
I’m a Paramedic by trade, so I got plenty of masks...
@garagestrongman9525 4 жыл бұрын
Nice work buddy 💪🏼😎👍🏼
@POUSEaroundtheHOUSE 4 жыл бұрын
Thank you Strongman!
@bartoncessna1 4 жыл бұрын
Great update. Good to see the progress. Hopefully you finished the build before the lockdown began - or can still get supplies! Cheers.
@POUSEaroundtheHOUSE 4 жыл бұрын
Inside almost finished but I stocked up 2 months ago! Thanks for watching.
@cmal90 4 жыл бұрын
Hi pouse, found this a thankless job when I did my dormer conversion myself last year, just seemed to go on and on, stair well, landing, bathroom and 2 bedrooms I also had to double up my boards. Thankfully all worth it in the end nice and warm in winter and cool in the summer.
@POUSEaroundtheHOUSE 4 жыл бұрын
I hope it will be worth it in the end! Thanks for watching.
@paulthewitt 4 жыл бұрын
Great to see another loft video ... strange I was doing wiring for mine today too...!!
@POUSEaroundtheHOUSE 4 жыл бұрын
Best of luck with it and thanks again for watching!
@chrisroyle4813 4 жыл бұрын
I can relate to your comments about fitting insulation being joyless. Messy too.
@POUSEaroundtheHOUSE 4 жыл бұрын
Indeed it is!
@derekt7606 4 жыл бұрын
Great job. Hope you guys down south are all safe.
@POUSEaroundtheHOUSE 4 жыл бұрын
Thanks. Keeping safe thanks. Same to you up North! Thanks for watching!
@rossmale8715 4 жыл бұрын
Our spec on new builds now is 150mm pir, normally made up with 100mm in between and 50mm over the top. What weve started doing is 30mm in between and triso multi foil rolled insulation over the top with a 4"x1" cross batten. Actually works out cheaper per metre and is a cleaner tidier and far more enjoyable to work with. I cut the thinner pir with my track saw a vacuum so there's literally no dust and you don't get all that dust falling off them when you bang them in. Hope this may help someone
@POUSEaroundtheHOUSE 4 жыл бұрын
Great tips there Ross, thanks for the feedback.
@nigelbowen206 4 жыл бұрын
Hi buddy loving your videos when will you be uploading the completed loft conversion?
@POUSEaroundtheHOUSE 4 жыл бұрын
Plenty more to come but it's just finding time to edit them. Hopefully one coming in next few weeks. Thanks for watching.
@beatsandwarts 4 жыл бұрын
I agree. Fitting any type of insulation is boring, joyless and most types are messy. But worth taking the time and care in the long term.
@POUSEaroundtheHOUSE 4 жыл бұрын
I agree. Thanks for the feedback.
@philipfarrell1431 3 жыл бұрын
Great video. Really enjoying the series as I’m on a similar job myself at the mo out of necessity. Quick question, is it definitely ok to drill through roof rafters? Are they the “same” as a ceiling joist for reg purposes? Ie between .25 and .4 and in the middle etc etc? Rafters are carrying loads more weight. It’d be great if I can otherwise I’ll be using miles if cable.
@bp8092 4 жыл бұрын
What a fab video! I'm still not featuring though! Didn't I pass all that up for you?!!
@POUSEaroundtheHOUSE 4 жыл бұрын
Yes but you didn't let me film it as you were in a rush!
@alexttrex 4 жыл бұрын
Hi Pouse, Great series of videos! For building control is it ok to run the cables between the membrane and insulation?
@POUSEaroundtheHOUSE 4 жыл бұрын
I would check with your local building control. They often have their own set of rules. With cables you don't want to sandwich them between insulation as they could get too hot if under heavy load, so keeping them cool is always a good idea, but they might have a different suggestion. Hope that helps. Thanks for watching.
@flemish4 2 жыл бұрын
Great videos! How did you get ventilation into the dormer cheeks? I find so much conflicting information about this, some places say full fill and vapour barrier, others say air gap but don't detail where the air flow is coming from!
@POUSEaroundtheHOUSE 2 жыл бұрын
I didn't vent the cheeks, filled with insulation and overboarded with insulation. The insulation and tape on joints was my vapour barrier but best to check with your building control officer as recommendations change with time. I did this over 3 years ago. Best of luck.
@creativecarpenteruk 4 жыл бұрын
Hi Pouse Yesterday I binged watched all of the loft conversion videos. How long as it taken you to build the conversion? Have you got a bank of video to sort through to make the series? Also when you finished the roof you should of "topping off" which mean having a beer to celebrate finishing it. But really enjoyed the videos nice and short and to the point! :)
@POUSEaroundtheHOUSE 4 жыл бұрын
Hi, loft isn't finished yet! But I have taken several months off at a time. I started 2 years ago. Just about to plaster the inside. I have a family and full time job so it takes a bit longer than I'd like. I have loads of footage I have to trawl through, takes a while hense delay in getting them out plus my channel is more than just loft conversion so I try to mix the vids up a bit. Thanks for watching!
@fanoscharalambous2098 3 жыл бұрын
Great video Pouse, and advice. I have several questions hope you can help. My rafters are 100mm deep, do I need to purchase 100mm insulation board or 75mm? Do I need to leave a gap for air flow?
@POUSEaroundtheHOUSE 3 жыл бұрын
75mm so you can leave a 25mm air gap and it must be vented to provide airflow. If you have old bitumous roofing felt then you need to leave a 50mm gap. You can always get advice from your local building control officer in the council, mine were always happy to help. Best of luck with it.
@tonygreenbank8611 4 жыл бұрын
What about cross ventilation? The last time I did one of these, to meet building regs we had to leave a minimum 30mm air gap between the back of the insulation board and the roofing felt to allow air movement around the roof timbers to prevent dry rot. We did this by nailing lats onto the side of the spars so that the thickness of the insulation was flush with the face of the spars. This means that there are no voids without air movements. I'd read up the current building regs before doing anything of this nature.
@POUSEaroundtheHOUSE 4 жыл бұрын
I did leave an air gap, I explained that in the video. I used screws to stop the board moving up where necessary but also used foam to bond it to the rafters. In an earlier video you will see I used fascia vents to allow the air to move into the void above the insulation. Hope that helps. Thanks for watching.
@Devtherev999 4 жыл бұрын
Hi Pouse, really great job as always mate, really inspired! Just wondering how long it’s taken and what you did about scaffolding, ie costs? I’m planning a conversion myself, do you just need to get building regs surveyors in to sign off the work as you go in stages? Any advice would be well appreciated! Cheers
@POUSEaroundtheHOUSE 4 жыл бұрын
Best speak to your building control officer. You can apply for a building notice or full application. I did a notice where you get them to inspect as you go along at your own pace. A full application requires full plans. Often builders take this route. But things change often so best check with your local authority. Scaffold I paid and kept it for a year bit I was lucky. Some people charge you rent. I paid a one off fee. Again prices vary according to what part of country you're in, how long you want it and how much you have. Hope that helps. Thanks for watching.
@Devtherev999 4 жыл бұрын
That’s brilliant thanks, your videos are really helpful, looking forward to seeing your finished extension, good luck!... Looks like you’re well beyond the worst of it now anyway! 👍🏻
@steves1460 4 жыл бұрын
Whilst I may not always agree with your methods, I do admire your enthusiasm and stamina for taking on such a big job as well as being a family man! Question: Part P requirements for electrical work and how are you going to address it? Before being able to sign off this job with the inspectors, they will want to see your certificate. I imagine you will struggle to get an electrician to be prepared to sign off work you have done yourself, but I may be wrong.
@POUSEaroundtheHOUSE 4 жыл бұрын
I know an electrician who has a look before I cover the wiring up. Then he will test and inspect for me. I opted for this option in the building regs notification. You could of course pay a bit more to building control and they will send someone out to inspect the wiring. Hope that helps. Thanks for watching.
@CucumberFanatic 4 жыл бұрын
As Pouse has said, I did the exact same, did the 1st fix in my loft conversion and got a sparky to just issue a document saying it conforms to part P, then I did the 2nd fix and the sparky hooked up to the consumer unit and tested the final circuits. this is a completely legal option, but like you said a lot of sparkys don't like to do it because they have this moral high ground thinking that only they should do electrical work, when in reality the law only states that you have to be competent.
@steves1460 4 жыл бұрын
Fruit_Men - I guess it is more likely that they don’t want the responsibility that they are taking on, if they are not making much money out of doing it!
@paulrockliffe2378 4 жыл бұрын
@@steves1460 It's that, the requirement to be Competent only is a red herring as the only way to adequately demonstrate competence is to complete your exams and be registered and insured.
@steves1460 4 жыл бұрын
Paul Rockliffe - agreed! I have electrical and electronic qualifications, but not the specific knowledge / experience to test the installation afterwards. I wouldn’t consider myself ‘competent’ and always get the sparky in for any work. I wouldn’t fancy proving competency to the insrance company if ever there was a major incident, regardless of whether electricity was the root-cause. Gives ‘em a way out! Even the simple jobs are left to the pros, albeit i slightly begrudge paying for it.
@joeshaft 4 жыл бұрын
Another great video! you have a membrane between the insualtion and the roof? its obviously not going to be touching the backof the tiles directly? I know I asked you this on a previous video too
@POUSEaroundtheHOUSE 4 жыл бұрын
You put membrane over rafters, then battens, then slate to batten, so there's a minimum inch gap between slate and membrane. Thanks for watching.
@joeshaft 4 жыл бұрын
@@POUSEaroundtheHOUSE brilliant thats very helpful
@faresrezz7547 3 жыл бұрын
Can I ask what is the depth of the insulation you used in ur loft? thx for your videos (just liked and sub!)
@POUSEaroundtheHOUSE 3 жыл бұрын
Generally speaking, on old property in most local authorities building control will require you to use 100mm between rafters and 30mm over the top. You can use thicker over the top and less in between rafters but you would need to calculate the u values to meet building regs. However if you're not going through building control so it isn't an official habital room, then you can use what you like in theory. The important thing is to leave an air gap and ventilation between the insulation board and roofing membrane to avoid condensation build up which can in time rot the rafters. Hope that helps.
@zedman442 4 жыл бұрын
Great progress. What’s your plans to get the leccy signed off or are you self certified?
@POUSEaroundtheHOUSE 4 жыл бұрын
Get an electrician to test and inspect. You could get building control to do it for a bit more money with your building application or notice. Thanks for watching.
@zedman442 4 жыл бұрын
POUSE around the HOUSE do you think building control would accept just an EICR? I’m in the process of domestic installer but won’t be ready for my build sign off so wondering best way to go about it.
@paulrockliffe2378 4 жыл бұрын
@@zedman442 No, the EICR won't cover all the other bits and pieces like running cables only in safe zones.
@masenga2686 4 жыл бұрын
Hi Pouse. When's the next installment in this series coming along?
@POUSEaroundtheHOUSE 3 жыл бұрын
It came out 2 days ago, hope you enjoyed it! Thanks for watching.
@daypet1 Жыл бұрын
I know this is an older video, but i am removing spray foam insulation from between my rafters because no lender will lend against it nowadays, does the same apply to the rigid foam you use ? and does this now prevent people getting mortgages and equity release when the surveyor can't see the state of the timbers as in my case
@TomaszRykala 6 ай бұрын
Hi mate, I'm not the OP, but I just saw your Q. How did you get on and did you get your answer from elsewhere? I'm wondering the same - if using foam as a filler for PIR gaps also qualifies as something the lenders don't like. Thanks.
@daypet1 6 ай бұрын
@@TomaszRykala i have left it open for now.
@The.Occasional.Uploader 2 жыл бұрын
What size mm penny washers did you use Pouse? M6 25mm?
@POUSEaroundtheHOUSE 2 жыл бұрын
I think they were these - amzn.to/2PKabsN. Hope that helps.
@MrGlenfraser 4 жыл бұрын
I have always wondered if we should earth the foil on these boards in case a live wire came in contact with it....
@POUSEaroundtheHOUSE 4 жыл бұрын
Good point, although making sure the boards are all continuous would be one hell of a task! Thanks for watching.
@paulrockliffe2378 4 жыл бұрын
@@POUSEaroundtheHOUSE I've been doing my insulation the last couple of months, I just about know what I'm doing, but tend to go over-kill in case I don't, so I've taped over the joists too for the full space-station effect. I've done 600m of tape now, but it is continuous electrically! I'm not going to earth it, there's no need as the wiring will be fixed, tested and plastered over. Though I should do as my hoover generates a huge amount of static electricity and I get a hell of a bang when I brush those boards when I'm hoovering up!
@CucumberFanatic 4 жыл бұрын
@@paulrockliffe2378 Taping over the joists is actually really good practice as it gives you an extra membrane and even helps with cross ventilation as there are no leaks between the joists.
@MrGlenfraser 4 жыл бұрын
@@POUSEaroundtheHOUSE I was assuming if it was all foil tapped
@wynjones9926 4 жыл бұрын
There is one area where the regulations have relaxed. If you have earth leakage trips on your consumer unit, which you would be wise to do, then you do not need to earth extraneous metal all over the place, such as radiators. You do need to earth incoming gas and water pipes, unless plastic.
@davidmathews2219 4 жыл бұрын
another good job and very informative.will you have a party when youve finished ?
@POUSEaroundtheHOUSE 4 жыл бұрын
I don't have the energy for a party!! Thanks for watching.
@ek6868 4 жыл бұрын
Hi always enjoy your videos,how much would the material cost for a project like this?if you don't mind me asking
@Daemiex 4 жыл бұрын
he would probably have to finish to give a good idea of price, every projects different and i know from experience that when you budget for a job it usualy goes out the window and costs more coz you come across things you didnt expect to happen lol
@CucumberFanatic 4 жыл бұрын
I did my loft conversion 100% DIY apart from Building control and Architect (Required costs) and the final cost was around £10k but that's with no additional dormers ect...
@ek6868 4 жыл бұрын
@@Daemiex thought so 👍
@ek6868 4 жыл бұрын
@@CucumberFanatic good on you👍👌
@POUSEaroundtheHOUSE 4 жыл бұрын
Very true. I'm near the end now but I'd have to go through my book and check price. I've been logging it all. But I've also painted house, re-slated whole roof, and done new soffets, facsias and the end roof of my house. I'll give a summary when loft is finished and explain all.
@TheStressD 4 жыл бұрын
Great video, how much do you think it's cost you so far to build?
@tahiraslam7408 4 жыл бұрын
TheStressD he never reveals the cost its his secret. We're all here cuz be wanna save money dunno why he doesn't disclose cost
@POUSEaroundtheHOUSE 4 жыл бұрын
It's because the cost is completely different from month to month. It depends where you buy your materials, what tools you use, what the cost of timber is at any given time. To work out your cost you need a design, then you can price up all the materials you need. If your house is bigger it will cost more. I will give the cost of the build when it's all finished but until then I don't know myself unfortunately. Thanks for watching.
@qasimshaukat4445 4 жыл бұрын
How much did this all cost you? And also have you finished your attic now?
@POUSEaroundtheHOUSE 4 жыл бұрын
Not finished yet. I'll do a summary when the loft is finished with costs etc.
@gavinhull5379 4 жыл бұрын
Is there not a number 28 onwards in the series as the loft ain’t completed ?
@POUSEaroundtheHOUSE 4 жыл бұрын
Correct! Plenty of footage, just have to edit it, so stay posted! I will show the full conversion. Thanks for watching.
@GlenAce65 4 жыл бұрын
Hi, would you like to test a tool like mobile endoscope camera, which can help people to view and check the hard-to-reach places like the nooks and crevices of your house, appliances, car, and more.
@TheDirtyturk1 3 жыл бұрын
Do you need planning permission for a build like this? in the UK, London to be specific. Thanks
@POUSEaroundtheHOUSE 3 жыл бұрын
Depends on the additional size of the dormers you add. This one didn't need planning but you will need to comply with building regs if it is to be a 'habitable room'. If you go to www.planning.gov.uk all the info is there. Then speak to your local authority building control as they all have slightly different rules.
@TheDirtyturk1 3 жыл бұрын
POUSE around the HOUSE thanks for the information, keep up the good work 👍
@adamjamro23 4 жыл бұрын
Can you please put more content out?
@POUSEaroundtheHOUSE 4 жыл бұрын
I keep trying but struggle for time. Feel free to browse my channel. Plenty more videos! Thanks for watching.
@adamjamro23 4 жыл бұрын
POUSE around the HOUSE I have seen almost everything you put up. I like the way you speak and I can watch for hours especially in current situation. Kind regards.
@steves1460 4 жыл бұрын
Adam Jamro - ...and you have the added bonus of getting to watch it all come down again. Coming to a screen near you soon! ;-)
@MegaFraner 2 жыл бұрын
I thought you were supposed to have a min of 50mm between the insulation and the breathable membrane.
@POUSEaroundtheHOUSE 2 жыл бұрын
That figure was orinally introduced for use with existing bitument felts but if you use a good breathable membrane with suitable ventilation (I used fascia vents) it can be reduced. Always check with your building control officer, they can advise. Hope that helps.
@clivehendy5879 2 жыл бұрын
What about your power boxes?
@POUSEaroundtheHOUSE 2 жыл бұрын
I made holes for the light cables as I fitted the insulation. Hope that helps.
@paulross7204 4 жыл бұрын
Pouse that coughing sounded a touch like Covid, keep out of the Heath buddy we want to see the end of the project 🌈
@steves1460 4 жыл бұрын
In other words, it would be extremely selfish of you to expire before this project is finished. A modern-day version of Mozart’s Requiem in D Minor no less!
@POUSEaroundtheHOUSE 4 жыл бұрын
If you look at start of video it was November 2018 so not Covid just getting old and worn out....but I'm still standing in 2020! Thanks for watching.
@steves1460 4 жыл бұрын
POUSE around the HOUSE - personally I would’ve milked that for all it was worth i.e. build-up the tension towards the conclusion of your series! ‘Scripted reality’ and all that. If it’s good enough for the Kardashians.....
@johnnythefox1851 4 жыл бұрын
Fake Covid
@labbo5591 6 ай бұрын
Youv'e got cold spots around all your down lights and that ridgid looks very thin for 150mm regs insulation, you don't need an air gap with breathable membrane!!🤔🤔🤔🤔
@beatsandwarts 4 жыл бұрын
A better title would be ‘An exciting and informative man doing very boring jobs!’
@POUSEaroundtheHOUSE 4 жыл бұрын
Not sure about exciting.
@fredwhite658 3 жыл бұрын
theres no much head room
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