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Insulating concrete floor- 100mm insulation boards

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Official Instagram- / kb_building_services
#bricklaying #builder #building #extension
We are back where we layed the 4inch concrete slab to put 100mm insulation boards down and to cut polythene membrane ready for the floor screeders. This job is having underfloor heating which is why the insulation is being layed down on top of the concrete rather than underneath.
With me not being there all day the lads took over for a few hours and left them in charge of the camera and I didn't think they done a bad job!
In total we used 30- 1200 x 2400 insulation boards.
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Опубликовано:

11 июл 2020

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Комментарии : 91

@brianhaines5835 4 года назад

Lovely to watch, great builder and decent music, what more could you want.

@lincolntuckwell5993 2 года назад

Top video mate. Just started my kitchen diner again after 3yr break and 1st job is to insulate and screed floor. This has shown me what I need to know 👍🏻

@ConstructionwithKieren 2 года назад

Glad it helped mate!

@MMG_MoonManGuitar 3 года назад

Solid work mate. Making it look easy. 🔥

@ConstructionwithKieren 3 года назад

Thanks mate!!

@petronablessbless7589 3 года назад

Great job guys i have learnt a few tips from your vedio, have to do my house as well thanks a lot for the update..

@ConstructionwithKieren 3 года назад

Thankyou for supporting the channel! Hope you enjoy upcoming videos👍🏽🧱

@mrb3483 7 месяцев назад

Dont change a thing lads, straight to the point...

@cristianenovaes3247 Год назад

Congratulations, good job!

@ConstructionwithKieren Год назад

Thank you! Cheers!

@chapsheating1006 4 месяца назад

Good Video buddy 🙂

@magdamazur1429 3 года назад

thank you for sharing!

@ConstructionwithKieren 3 года назад

My pleasure!

@stuartjones2242 2 года назад

do it have to be foil backed if its just a normal screed over the top ,no under floor heating ?

@constructioneerful 3 года назад

Could you plonk a laminate floor onto that without needing a screed?

@barrydoherty636 2 года назад

Can you board straight over celotex or does it need dpm?

@gittin_funky 3 месяца назад

quick question ..... how would you run central heating pipes to radiators or electric cables if the floor is now solid concrete and walls are solid brick?

@Nano_89 3 года назад

Do you install wet underfloor heating systems?

@thetrevcom 3 года назад

Great videos, any videos of the extension build or details of the sizing and roof build?

@ConstructionwithKieren 3 года назад

thetrevcom I’ll be honest I never had any recording equipment at the time of the build, new extension videos will be in the coming weeks though🧱🔨

@jericho9653 3 дня назад

Shoukd you not have put a 1 inch thinkness of insul board around the boundry walls and butted the 6 inch insulation up against it? Whats stopping the cold bridge there

@bryanflint7499 Год назад

There should be a layer of DPM between the slab and the insulation and another layer of VCL before the screed goes on.

@ninety1464 11 месяцев назад

Theres already a layer under the slab so no, you dont need one directly above it

@raymondosullivan1958 10 месяцев назад

Rubbish. There’s a layer of dpm under the insulation no need to have another one

@leeyo5494 10 месяцев назад

hi was there the insulation under the slap, is that the only insulation of the floor?, thanks !!

@nathanglinn3266 8 месяцев назад

Just out of curiosity... I need to raise the floor by 200mm+. Can I double up on the insulation? Or is that a no no.

@karenroberts7531 2 года назад

Do you need to screed this after? Or could chipboard be used instead? I’m in a 8 year old house with a concrete floor and it’s supposedly insulated, but freezing in winter on the outskirts of the house mainly. Just looking for ideas before I replace flooring.

@ConstructionwithKieren 2 года назад

Ideally you should screed as its much more of a solid base!

@helenagreen3438 2 года назад

Hi, thank you for posting this video. Does it matter if the insulation is dipped in some areas and all the insulation isn't level. We have had timber floors removed and concrete flooring put down. Some.of it is quite unlevel. Is this a problem for underfloor heating and top screed? Thank you

@ConstructionwithKieren 2 года назад

No it doesn't matter to much, ideal if its bang on level but that's hardly ever the case!

@ryancole4563 Год назад

Hi, this is a great video! I am just about to do a mini garage conversion and wondered if I could use the 100mm Celotex insulation with Screed on top to bring the garage floor level with the rest of the house. Will I need a DPM layer over the Celotex before laying the screed? Really appreciate your advice.

@sahinahmod6961 Год назад

Hi did you manage to do your conversion? Im trying to understand which would be a cheaper option to raise the floor . Floating floor or using celotex and screed

@DP-bo4yw 11 месяцев назад

Dpm > insulation > polythene sheet > screed.

@MiLiEl1024 9 месяцев назад

Better use Isoleika's ISO-CON panels. class A1 fire rated and 0.02 W/mK, apart of x2,5 compressive strength! 👍

@TheEntourageOnline 5 месяцев назад

Is there another video where you add the concrete?

@crispy4306 2 года назад

What point weight will this take? I’m doing a garage conversion (concrete floor levelled off using levelling compound) then I was going to use this method this method with chipboard or plywood over the top 18mm. I intend to put a weights in there, will it crush the insulation if I do?

@Fleed907 3 месяца назад

How did it go?

@crispy4306 3 месяца назад

@@Fleed907 I put a wood frame underneath in the end, all worked out fine - make sure the floor is well levelled though

@joeheffernan01 10 месяцев назад

So you can lay insulation on top of the concrete? What goes on top of the insulation? I'm building an extention and want to insulate the old part of the house, I was advised to dig down 8 inches, DPM, insulation then concrete over.

@t-rex4211 4 месяца назад

Chipboard flooring straight on top

@athlo 2 года назад

Just a question but if you use a plastic sheet under the concrete, why would you need insulation? Wouldn’t the plastic prevent the concrete coming into contact with damp and cold?

@ConstructionwithKieren 2 года назад

The plastic is to stop the screed from eating into the foil of the insulation

@DeanW-1990 3 месяца назад

Why do people install the insulation under the concrete slab and some insulate above the concrete slab ?

@stephenjprice 3 года назад

Hi there many thanks for the video What do you fit on top of the newly insulated floor or is it floorboards or can you put carpet directly on top of the insulation?

@ConstructionwithKieren 3 года назад

Stephen Price hi there, so we have 4 inch of concrete then 4inch of insulation which you can see in the video and then we have 70mm of floor screed. That’s when you put your carpet/flooring down ontop of the screed!👍🏽

@andyk7967 3 года назад

Out of curiosity, do you know how much weight these panels can take once they have a screed cover on them? I want to put a large fish tank in a room with these under the screed, but I am worried it's just going to collapse!

@ConstructionwithKieren 3 года назад

You should be able to put any amount of weight on it mate Aslong as the concrete base is thick enough and the screed is also!👍🏽👍🏽

@andyk7967 3 года назад

@@ConstructionwithKieren Sweet! Cheers.

@rome3766 3 года назад

Is the dpm under the concrete. Is that the black dpm I can see around the edges?

@ConstructionwithKieren 3 года назад

Yes under the concrete!

@smellypunks Год назад

So the question is will 100mm thickness meet the new regs or will thicker PIR be required for floors?

@ConstructionwithKieren Год назад

It’s all down to the building inspector mate

@DICEGEORGE 3 года назад

Put foam in the gaps between boards? How much would that improve the insulation?

@ConstructionwithKieren 3 года назад

I’m guessing it would slightly but the sheets are very tightly together as it is mate

@simonhenry1769 9 месяцев назад

I was also thinking whether foil tape over the joints would be worthwhile?

@gsajeev119 Год назад

Would it not sink after years of installation? Do you concrete over them boards?

@ConstructionwithKieren Год назад

Why would it sink?

@jimmyryan1988 2 года назад

Wondering if you could help me I’m planning to put my insulation boards down this weekend and noticed you have put yours right up to the bifold doors. I would like to do the same! Did you have to remove the inner course of brick and lay concrete in the cavity? Any help or advice is much appreciated. Thanks

@ConstructionwithKieren 2 года назад

Yes you do mate, you don’t always have to but it’s preffered better insulating wise!

@jimmyryan1988 2 года назад

@@ConstructionwithKieren I’ve had my slab poured to the inner skin so trying to come up with a solution so I can screed/ tile up to the bifolds 😬 Thanks for the reply 👌

@ConstructionwithKieren 2 года назад

@@jimmyryan1988 if not double layer the insulation in the cavity next to the bifold!

@jimmyryan1988 2 года назад

@@ConstructionwithKieren might have to do that nice one mate 👍

@newry123 3 года назад

what way are you finishing the walls off,sand/cement render or dot and dab,,cheers

@ConstructionwithKieren 3 года назад

D&D with plasterboards mate, it’s the easiest/cheapest way👍🏽👍🏽

@newry123 3 года назад

@@ConstructionwithKieren thanks

@ConstructionwithKieren 3 года назад

@@newry123 thanks for watching mate

@skiiddy 3 года назад

Did you tape the joints?

@ConstructionwithKieren 3 года назад

Yes mate!👍🏽

@oltaniecharles 2 года назад

Can I install a vinyl sheet or vinyl peel sticker on top ?

@petersmrek7617 2 года назад

No In needs some floor boards first then floor of your choice

@Recoverystore 3 года назад

Hey man, how do you lay flooring on top of that?

@ConstructionwithKieren 3 года назад

Depends on what floor it is mate

@oltaniecharles 2 года назад

Can I install a vinyl sheet or peel sticker on top ?

@handytbutler7380 2 года назад

@@oltaniecharles as long as you lay down plywood and then underlayment you can put down any vinyl tile.

@kay07949 Год назад

Can this be used to insulate a garage floor ?

@ConstructionwithKieren Год назад

If cars are going to be driving over it I assume not I'm afraid

@levaisandoralex6829 3 года назад

Concrete goes top of that?

@ConstructionwithKieren 3 года назад

screed does yes

@peanutbutterry6364 Год назад

What are you going to do with those polythene plastics?

@ConstructionwithKieren Год назад

What do you mean?

@peanutbutterry6364 Год назад

@@ConstructionwithKieren Thanks for your reply Kieren. I meant that polythene (dpm) at minute 3:48. Is it ok to put polythene on top (or below?) of the insulation board as an additional layer of insulation to the floor? Thanks again for your reply.

@joyguan1476 2 года назад

no moisture barrier?

@ConstructionwithKieren 2 года назад

Under the concrete

@ConstructionwithKieren 2 года назад

And then goes over the celotex

@charlieheath4345 2 года назад

Lost me once the EDM started playing.

@george4vIogging 2 года назад

That's when I really got into it

@jimmymorgan3324 3 года назад

SHOULD OF. STUCK THEM DOWN. WITH SOMETHING. LIKE LEAD SEAL . , AND. TAPED THE JOINT.S WITH SILVER FOIL TAPE. WOULD HELP WITH THE. U VALUE. . NEXT TIME A .