Check the link in the description where you can purchase all the products you see in this video
@drewmce4 жыл бұрын
Would the Dodo Dead Mat Duo be a suitable substitute for the Dead Mat and Van Liner? All suppliers are out of stock of Van Liner (and Thermo Fleece 🤦🏻♂️)
@CombeValleyCampers4 жыл бұрын
@@drewmce yes absolutely
@oliverbunyan93543 жыл бұрын
Hi mate, if you were to use the dodo dead mat duo for the sides also could that replace both the silent coat deadening sheets snd the thermo liner? Also is there other products you’d advise to use for the sides and roof as thermo liner is out of stock!
@SonnyKnutson Жыл бұрын
@@CombeValleyCampers Hey there, How does the condensation and mold get managed when doing insulation with Thermo Fleece right up against the walls? I have no experience with building but I want to make sure I don't get condensed water to cause mold and rot inside the walls. Please assist :3
@GaryYoung-eq1ph Жыл бұрын
Supply website?
@PatMo18882 жыл бұрын
A tip: when you cut the insulation for the side panels, don't fit them immediately, but use them as templates for the other side.
@hugohugo911 Жыл бұрын
Is it not necessary to have a vapour barrier to limit moisture and subsequent rust?
@carrots15505 жыл бұрын
Great video. My only small criticism is I found the music too loud and the speaking too quiet. I had to keep putting the volume up and down to even it out!
@kassiedreaneai74594 жыл бұрын
Fin Lay : Agreed. In fact it would be so much better without the music as a good tradesman or do it yourselfer is good to watch with only his speaking or the sound of his work or tools to hear. Also might have been good if he had a mike on him as his voice sounds strange due to distance from the mike.
@CombeValleyCampers4 жыл бұрын
@@kassiedreaneai7459 Hi guys, thanks for your comments. This is one of our earliest videos, and we like to think we have improved now. Just goes to show we are van builders first, not videographers, but we are improving every video!
@Jog_on2 жыл бұрын
That’s one of my complaints about all videos with music. I don’t feel it’s needed.
@DaiHGowerWales Жыл бұрын
Agree. But I love this guys tone pace and straightforward demonstration and explanation style. Very good 👍
@gordsjackson81094 жыл бұрын
On my 2009 I stripped my panels after watching this video, and found it had not a single piece of sound deadner in the whole vehicle, have now done floor ,rear doors and one panel so far and it's already made a massive difference !!!! Thanks guys
@ginafoote66882 жыл бұрын
I used this thin foil deadening under the deck of my narrowboat. It totally transformed the very loud engine noise from the single cylinder diesel. It's def going in my Vito.
@coolbeans4399Ай бұрын
Ive bought the deadening the liner and the recycled bottle plastic and will insulate my van this way ... I swear there are so many videos on KZbin and so many arguments on what to do and what not to do its ridiculous This seems the best way
@fordcameron Жыл бұрын
Thanks for these handy dandy videos. With the deadening on the floor, how do you then fix batten down to take the ply floor? I want to avoid screwing into the base and have seen battens glued directly to metal body but if it has the deadening over will I be able to effectively adhesive the batten onto the foil back sound insulation? Cheers
@finnomara4148 Жыл бұрын
Did you get an answer to this?
@jcautostv56424 жыл бұрын
Great video. Used Silent coat before - good stuff. One thing to add is that if you van is fitted with seatbelt pretensioners don’t fill the cavity that houses the seatbelt assembly with wool/foam insulation. Potential fire risk in a crash. T5’s don’t have pretensioners as you guys know but I thought I’d mention it in case any of your viewers are doing different vans. Keep the vids coming!
@danielhorne63404 жыл бұрын
Do yall ever install vapor barriers in your builds?
@velianlodestone12492 жыл бұрын
I've found that the sound deadening works great, but I abide by the 25% rule; after that it decreases the decibel level but it does not actually deaden the van any further. After the 25% I move over to sound insulating foam - it's lighter, does not deaden but that is already achieved - and decreases the db levels.
@geekazoid5 жыл бұрын
I found this one of the most informative videos for product selection and technique. We've gleaned some of this ourselves from forums but you were the first actual tech with experience to confirm our assumptions.
@davidbeverley2884 ай бұрын
hi very good tuition i used to deliver pop tops to yourselves a few years back good to see this brilliant
@Firehotbeats803 Жыл бұрын
Great vid, can I ask why do most other vids on van soundeadening only show people fitting small squares that do not cover the entire visible panel like yours? Your vid was the first I’ve seen that covers all the panel surface?
@andydavidson5 жыл бұрын
Should you not finish off with a plastic or bubble foil vapour barrier or does the Dodo van liner work as a vp against the van skin?
@andyjm71224 жыл бұрын
Did you ever get an answer to this mate? I was thinking the same thing!
@andydavidson4 жыл бұрын
@@andyjm7122 no reply
@MartinLobert4 жыл бұрын
I got the answer for you: www.combevalleycampers.co.uk/post/does-my-van-need-a-vapour-barrier I got linked here when I asked for the same thing
@xylomeat99134 жыл бұрын
Fantastic. Use this and here's why. I need to find U.S. equivalents and/or check the shipping prices, but there's nothing quite like having a professional giving this kind of advice.
@CombeValleyCampers4 жыл бұрын
Thank you
@cycleoflife73312 жыл бұрын
Once you add the fiber insulation to the back of the foil you remove it’s radiant properties making it useless except as a vapor barrier. Best to use foam spray and you can spray into cavities. You can’t beat foam for sound and thermal insulation. Check out the costs too.
@enensis4 жыл бұрын
Your videos are literally walking through my van conversion. Thanks guys peace ✌️
@flaviucernescu Жыл бұрын
How is the water condensation in the panels when camping in cold / humid weather?
@terrygoddard34914 жыл бұрын
Great series I love how much detail you go into explaining the do's and dont's also showing the best products you use and why you have chosen to use those suppliers . ive subscribed because of the way you explain things in such detail and yeh theres other guys to watch but you make a better job of it and keep it simple with great hints and tips as well . im loving this series mate keep it up … Brilliant Job :)
@oisin81522 жыл бұрын
Found this the most comprehensive video, straight through all the different layers, very helpful, some KZbinrs try break it up as hooks for the next layer, next video, thank you. Can't see what thickness Super liner you used for the floor..
@gordsjackson81094 жыл бұрын
I did my wheel arches and remaining panels today, I discovered heating the mat once I had finished and then going over with the roller smoothed it all out really well and really defined the arches , carpets next !!! Your videos have been great and gave me the confidence to have a go.
@andyfletcher3633 Жыл бұрын
Thanks for making it easier to understand & not putting on a fast forward 👍
@THExPH03N1X Жыл бұрын
Great video. I was wondering would it be alright to put the insulation fleece in between the sound deadening and the thermo layer?
@craig-robinson4 ай бұрын
It won’t stick if you do it that way
@stokepusher54815 жыл бұрын
Thanks for the under floor insulation/sound reducing product info. and advice @8:00
@neilgooge5 жыл бұрын
I second what croft says below, plus, the jump of volume between talking and music is a little jarring. But, as croft also says... that goes in the nitpick department... amazing video.
@CombeValleyCampers5 жыл бұрын
Thank you for your feedback. We are still very new to this and learning g everytine but rest assured we are loving every minute. Next on the shopping list is definately a lapel mic :)
@fieldnote_music5 жыл бұрын
Used the same materials when insulating my camper van, works great and it's so simple and fast to apply!
@gameandskate4 жыл бұрын
Daniel Nilsson, how is it holding up in cold weather ? I live in Montana, where it periodically hits -20 with windchill.
@taradead5 жыл бұрын
I spent most of this winter in a completely uninsulated van. Granted, temps in my area usually don't drop much below 4C, but, with a good sleeping bag, it's managable. Only reason I'd need insulation is for road noise during those times I'm "forced" to sleep on a relatively busy street (rather not wear earplugs).
@dirknoom43895 жыл бұрын
You might want to consider wearing external ear protection. It limits your sleeping positions a bit, but it's more comfortable and easier to take on and off than earplugs. I find i t's usually better than trying to sleep with sound in the background.
@casey_t54 ай бұрын
I’m glad I watched this as I thought you just put a square of the sound deadening on a panel (not cover the whole panel) & then the thermal line over it 👍🏻
@Reef191073 жыл бұрын
Really trust what you guys say, have ordered my insullation and will slowly be working on my van with your videos help. Great so see you working on a van a taking the job slowly so we gt to see the work done and listing products, mistakes and tips is just great. Thanks for taking the time to do this for the comminity.
@michaelkirk26605 жыл бұрын
Great video, would like to see a video off the floor being sound deadened. Very helpful 👍👍.
@glendahill Жыл бұрын
excellent vid! I have one question, if I may. I really don't want to carpet the interior of my van, what else do you recommend? And don't say woodchip......
@finnomara41487 ай бұрын
I bought the materials recommended but obviously didn't Co er panels enough as I have loads left over. Must have seen too many videos of small squares rather than almost the full panels being covered. Should I go back and cut lots of little pieces to add more coverage before I add the other layers? I know Combe valley don't usually reply so happy to get opinion from anyone. Really want to do second layer asap
@CombeValleyCampers7 ай бұрын
Hi Finn, thanks for the comments. Yes we would advise full coverage, however any thing you place on the panels, over and above what was supplied from the factory, is better than nothing :)
@cnnlive31094 жыл бұрын
Just a heads up I put insulation in my van that didn't have any, I had carpeted walls. Added insulation for the summer and all it did was change the time the van is hot. Its complete pointless if you are not in very cold areas and as someone who's running a 1500WH battery I'm already avoiding cold climates since I have no real decent way of charging back up with solar.
@UKvet2465 жыл бұрын
Wow brilliant there's so much information on insulation and a lot of it conflicting, you've nailed it and given me inspiration by way of knowledge on how to do it right
@leese.234 жыл бұрын
I'm confused with the self stick insulation. I can understand it with the deadening but with the insulation don't you need to have a vapor barrier between the insulation and the metal of the van?
@briancollis9352 Жыл бұрын
Very helpful video, I am building out my Caddy Maxi at present. Is a vapor barrier needed with the recycled plastic bottle insulation used here?
@joshuatimmins26814 жыл бұрын
Thank you so much! What do you put over the Thermo Fleece as the final layer? Don't you need a moisture barrier? Or do you just place the cladding onto the Thermo Fleece?
@raysimkiss80313 жыл бұрын
I was wondering this anything else or chuck ply on top
@raymondedwards39294 жыл бұрын
Thank you for explaining in detail what you are doing and why.
@martinplumley53515 жыл бұрын
Really silly question but when sound proofing rhe floor do you just put the silent coat and insulation layer inbetween the raised bits or just cover the whole floor?
@PaddyMacWorld5 жыл бұрын
You don’t need to sound deaden the floor. If its got corrugations that provides rigidity and therefore tempers vibration and is sound deadened anyway. You only need to sound deaden large panels Think of old cars; at certain speeds the whole bonnet would resonate.
@malbowski Жыл бұрын
My dodo mat just arrived, first vid I watched on application, the guy said you shouldn't use it on the wheel arches, but use a foam based product to actually absorb the sound instead. Everyone else seems to be using it though. Thoughts?
@matt_17845 жыл бұрын
This is the video I've been looking for! Great job, buddy
@user-wv2bn2cb1i4 жыл бұрын
This may be a long shot and sound totally bonkers but here goes. I hear every single thing my upstairs neighbors do. They are lovely people. Not partying ,, very considerate. Its the building that's the problem. If there was ever any sound proofing in the my ceiling or their floor, It's now gone. Could i use Sound Coat on my ceiling to block out some of the noise?
@davec17044 жыл бұрын
Did u give the sound coat a go ?,We were renting a ground floor flat with no insulation between the floors was a nightmare,
@user-wv2bn2cb1i4 жыл бұрын
@@davec1704 Hi Dave! I'm waiting to see if they are moving out. They hinted they might. Then I will approach the landlord with the problem.
@finnomara4148 Жыл бұрын
If you are going to ply line the sides,doors and ceiling... Can you still use the fluffy bottle insulation under it? If not... And you have attached the fluffy white stuff, what do you cover it with. If not using carpet, is the system still the same.. Desdening+ second layer of silver+ fluffy insulation?
@battletank9493 Жыл бұрын
Top job....thanks for the effort to record this
@harryharper29512 жыл бұрын
Sup! Thanks for the video! One question, I noticed the roof had done in strips.. any reason? Cheers!
@markchristianson40084 жыл бұрын
Can you tell me if these products are available in the United States?
@justrobin12344 жыл бұрын
What's the advantage to putting in thermo van liner and then fleece, vs just putting in some fleece/rock wool/mineral wool? I'm guessing it's *additional* sound proofing? but maybe there's some advantage with the closed cell foam?
@CombeValleyCampers4 жыл бұрын
Hi Robin. The thermo van liner does two jobs as you say. It serves as a great sound barrier (external noise) and sound deadener (panel resonance) as well and thermal properties with the closed cell foam.
@lukegoodridge-reynolds7920 Жыл бұрын
Great video i just purchased a t4 would this still work on it and how much would i need as im new to the world of vw transporters never done any think like this before
@scottframe545 жыл бұрын
Like the MCM chopped fingers in background
@CombeValleyCampers5 жыл бұрын
First person to notice them and leave comment. Well done man ✌
@amandaleeds4139 ай бұрын
Brilliant videos! So with that compressible floor covering, would you not need to lay wooden batons down?
@thomaskent25112 жыл бұрын
Brilliant video and advice. I've got a mk7 transit and in the winter I get loads of condensation build up on the inside of the roof. When temps drop, it freezes and the moisture gets into the cab and freezes on the inside of the windows too. Would this stuff stop that from happening?
@ragnaroksangel10 ай бұрын
A max air fan would likely help, so do dehumidifiers. try cracking your windows in the meantime.
@derekt76065 жыл бұрын
Should you not publish the U value of any product that claims to be insulation ?
@kabouterplop195 жыл бұрын
It is on their website
@muff_jr57609 ай бұрын
Hi, thanks for video. So can you glue carpet straight onto that first sound deadening layer on the arches? Many thanks
@CombeValleyCampers9 ай бұрын
Yes 100%
@muff_jr57609 ай бұрын
thanks!@@CombeValleyCampers
@sadboyentertainment3118 Жыл бұрын
I been doing a lot of research’s of video like this and this guy broke it down the best 🙌🏾
@mattbaird2003 жыл бұрын
Hi, ive seen a video clip of you covering holes in the van before carpeting but cant find it anywhere, just after what you used and where it was from?? Many thanks
@CombeValleyCampers3 жыл бұрын
kzbin.info/www/bejne/aJO3eaWOlNBridE
@sloopyjoe1777 Жыл бұрын
Quick question. Is it worth / necessary to put on the first two layers, given that they both have sound deadening qualities? Would the second layer be enough on it's own to deal with the sound? Also, is there a product that deals with both the sound deadening and total thermal insulation in one? Many thanks.
@atinamoon5 жыл бұрын
I shall be watching these vids when I get back from work x
@atinamoon5 жыл бұрын
Oh blimey.. So many good tips... When I get my next van I shall use this as reference
@garrystreeter2151 Жыл бұрын
How many sheets of silent coat would you say is needed for a transit custom ? Thanks
@blomdavid5 жыл бұрын
Hi! Great video, very useful! I was wondering if you had any experience on using Armaflex vs Dodomat, and if so, what made you use Dodomat over Armaflex? Considering using about the same thickness.. Cheers!
@johnfraser413711 ай бұрын
Thanks for making it look simple
@feathersky8602 жыл бұрын
Excellent Work am VERY IMPRESSED 🇺🇸 ✔️ 🦅
@CogitareEstVivere Жыл бұрын
would you know how much sq metre a VW T5 Long base is in walls, ceiling, doors and floor ? To know how much dead mats to buy. Thank you.
@TheDaztheraz2 жыл бұрын
How much heat is lost via the windows, will this render some of the insulation pointless, just trying to decide how much of the van to insulate
@leighamartin25492 жыл бұрын
How many sheets do I need of the silent coat 2mm of a lwb t4 VW and how much of the dodo thermal liner please
@JJ-vb1sv Жыл бұрын
Is there any need for a vapour barrier? Any problems with condensation/mould etc?
@JakedT143 жыл бұрын
Hi mate. Great video. What do you do to the floor please ? Did I miss something
@marklandy66834 жыл бұрын
Thank you very much, Ive just started looking into buying a van to convert , With the way you show how to do things is a massive help it has gave me a confidence boost to go ahead. I will be using your links to get materials. kind regards..
@SoniaAngiolini-xf8gq Жыл бұрын
Is it possible to get a ballpark figure as to very roughly how much it would cost to fit this insulation? I have a 2004 ford transit van which has been converted into a liveable van and it’s not insulated. I was wanting to do the ceiling and walls only at this stage . I know it would be a very rough figure but just want to know a estimate please to see if it was worth it or just work on getting a new van thank you
@kpj53 жыл бұрын
What do you put over the thermal fleece? Should I put another thermo van liner over this?
@greatcesarsghost10 ай бұрын
Are most of the stuff u show available in the USA ..if u get the thick do do mat can u just cut it in half so it's not so thick and u can probably do ur whole van ???
@brettsewell7012 жыл бұрын
Hi There, Great video. Thanks for the help. Do you put the Woolley stuff on the roof too. I was wondering if there was enough room? Thanks
@CombeValleyCampers2 жыл бұрын
Generally no
@Feedback4Utoday4 жыл бұрын
how effective?? how much warmer? quieter? Nice job & video !! a measure of benefit would be ideal !
@cameronpage28784 ай бұрын
What an extremely informative video. Cheers 🤙🏼
@CombeValleyCampers4 ай бұрын
Glad you liked it!
@garydavey66625 жыл бұрын
Thanks so much for the best explained van insulation video on KZbin. Now all I have to do is see if the products are sold in Australia.
@elliottrooney6042 жыл бұрын
Thanks so much for this video. I’ve basically done so much research that I’ve totally lost what order and what product I need and what order to use them! I pick up my van this week and so I feel like this channel might just be the reason I won’t freeze at night! What’s the minimum coverage of the dodo sound deadening. Some people say 30% - 50% but it looks like you’re using as much as you can on the outside wall? Thanks again!
@leecummings86584 жыл бұрын
Great video, but I have a question. What quantitys of each product are you buying to insulate a Ford custom swb. Thanks
@tomrose_arb5 жыл бұрын
I watched another youtube video recently and the guy was using your products but used them in the order of Silent Coat, Thermo Fleece and finally Thermo Liner. I believe his theory was that the Thermo liner was best used as the final layer to act as a vapour/moisture barrier to the Thermo Fleece. He also covered the ENTIRE walls in it. Would you recommend this?
@longhairmullet5 жыл бұрын
Yes thats what I was thinking one should do as well. As most videos include a vapor seal with the reflective material towards inside of the van. I wish you could have mentioned what YT video so as I could view this other method too. Good comment.
@athertop5 жыл бұрын
i have to agree. I think its good advice to put the moisture barrier as the most inner layer to stop moisture from reaching your insulating layers.This will stop the moisture reaching the outer/colder layers where it would condense and cause water in the bottom the cavity - basically avoiding what he said at the start if the video. i can't understand why these professionals don't follow basic principles for this.
@chrishoulding50655 жыл бұрын
@@athertop So what happens when you get moisture behind the vapour barrier which I believe would be bound to occur at some point however well you think you have done it. It would be trapped and have nowhere to go and rot your van. Ventilation is the key to keeping moisture from condensing and trying to seal a van up is counterproductive. think these videos are really professional and make practical sense but at the end of the day its your vehicle and your choice but just because someone has a different opinion it doesn't make it invalid or unprofessional.
@athertop5 жыл бұрын
@@chrishoulding5065 I think the clue is in the name "moisture barrier"
@mattr39274 жыл бұрын
Best vid online for explaining this! Cheers mate!
@ludwigvb29433 жыл бұрын
Hello, the 6mm is sufficient for the most weather? I see a lot doing some 19mm, why is that? greetings. Nice vieuw with the dodo thermal fleece. Thank you.
@samutd1986 Жыл бұрын
Is the half thickness thermo fleece still available ? Also is it 25mm thick?
@DEVINE.IMAGE.5 жыл бұрын
I put fiberglass insulation in mine but it was raining when I done it and it got a bit wet the smell was terrible for months
@taradead5 жыл бұрын
Almost used fiberglass...glad I didn't. Ended up going the cheap route with some free sheets of styrofoam found in the dumpster.
@gameandskate4 жыл бұрын
tarasded, LOL
@Are_we_there_yet_3 жыл бұрын
I have a question, Dodo Thermo liner Pro on their website says you don’t need to sound deaden as the thermoliner pro is a one stop fix! But you guys recommend using sound deadening and use thermoliner on top. Why?
@CombeValleyCampers3 жыл бұрын
The thermo liner Pro was released after the video was made. Its slightly out of date
@mingueyox4 жыл бұрын
Are you supposed to cover most of the van with the sound deadening. I saw people tend to just stick one patch in the middle of each big metal element... I do understand that if you cover the whole interior with it, can only be better, although more time consuming and expensive. What is the middle ground to get the most of it? Thanks for clarifying
@chrissuddell79403 жыл бұрын
Brilliant video, quick question though do you put a plastic barrier on after the fleece and before the cards? I'm doing my T25 up and the old insulation had clear plastic between the insulation layer and door cards.
@garycooper44813 жыл бұрын
Is there any difference in using this than silver bubble foil?? Cheers. If not and why?
@dobbiey15 жыл бұрын
Great helpful vid. Just a question. With doing the floor, would you place any sound deadening/ insulation down first and place batons on top, or batons first then sound deadening/ insulation in the gaps to then place floor on top? Thanks
@gameandskate4 жыл бұрын
dobbiey youtube channel, ...Dobbiey, is that you?!
@martinyardy32135 жыл бұрын
Have you used the Dodo Dead Mat as an alternative to Silent Coat? I noticed it's a bit cheaper and slightly thinner.
@CombeValleyCampers5 жыл бұрын
Hi Martin, thanks for your question. I have used lots of different products in the past from different suppliers and found this combination to be most effective for my customers vehicles.
@8413985 жыл бұрын
About to deaden/insulate aT5 as a day van. From other videos it seems you are better using a roller to guarantee the Silent Coat is fully bonded to the panels instead of just using hand pressure. Certainly any vehicles I have done in the past I have used a roller. Very informative series of videos, thanks, have subscribed.
@CombeValleyCampers5 жыл бұрын
Thank you for your kind words. We have used rollers in the past and still do for tricky areas but the adhesive is so good on the silent coat it really isn't necessary.
@Kirkscreamingsoda3 жыл бұрын
Do you insulate the ceiling as well? I'm thinking of boiling hot days camping out in the sun.
@josainsbury6044 жыл бұрын
Sound Deadening offer a bundle that consists of 7.5sqm of silent coat and 20sqm of van liner...your informative video shows that the silent coat and van liner go on the outside panels of the van - and then followed by thermal fleece. So why are the quantities so different? Why would I need so much more van liner??? Help please :-)
@fluffytheblog52222 жыл бұрын
Hello 👋 love the insulation! I want to do exactly the same in my van but I would like to carpet line. Straight on top! Would this work? Also taking in consideration I want to try and carpet line straight on top do I need another vapour barrier on top? Say just some of that bubble wrap stuff? Any help is greatly appreciated! I know you must be super busy! 😊
@GaryYoung-eq1ph Жыл бұрын
Heavy rain drops over head are horrible from trees ,and lines the ceiling is most important for sound proof.
@dugongpoo4 жыл бұрын
Very nice work. How do you insulate and sound deaden a van that has windows? I am going to turn my Berlingo into a campervan but it has windows. It's not a panel van.
@CombeValleyCampers4 жыл бұрын
Remove all interior plastic trim such as wall, ceiling and door cards. Apply sound deadening and insulation where possible.
@dugongpoo4 жыл бұрын
@@CombeValleyCampers Thank you for the super swift reply. What do you recommend I put on the inside of the windows? I was thinking of sealing over some of the windows from the inside. Thanks
@rosiesadler63263 жыл бұрын
Thanks for these great videos! Does it matter whether you put the fleece in first and then cover it with the thermal liner?
@CombeValleyCampers3 жыл бұрын
Install in the order as shown for best results
@Maceromi3 жыл бұрын
What about reflektic on top of the insulation and under the framing on van conversions?
@CombeValleyCampers3 жыл бұрын
Depends on the van and situation
@luciocancellara49954 жыл бұрын
Good vid cheers Quick one...How much pressure do you need to apply with the roller on sound deadening mats ,,, a quick rligjt oll over or really pressing down with force to ensure it sticks?
@janparzybok1624 жыл бұрын
Great vid. Should a mask be worn when using the recycled plastic fabric?
@chriswhotton70562 жыл бұрын
Thanks great advise just on with my crafter
@c8bbr4 жыл бұрын
When would you install electrics? Would you not pre install cables before the insulation?