Thread 2921972 - /diy/

Anonymous
6/4/2025, 9:52:35 AM No.2921972
image
image
md5: 3aa97bf762c1afc1616aed2ddea6f1c6๐Ÿ”
Is there a way to properly insulate your house without it looking like ass?

I'm eastern europoor, and everywhere the only insulation technology I see is these 15cm thick sheets of either EPS/XPS or mineral wool, which looks like complete ass, with these shitty sunken windows and doors (pic related).

How do they do it in the civilized world, so that you get decent insulation without having your home look like garbage?
Replies: >>2921973 >>2922013 >>2922074 >>2922079 >>2922720 >>2923119 >>2923194 >>2923203 >>2923208 >>2923798 >>2923968 >>2924006 >>2925565 >>2928804 >>2929316 >>2930957 >>2932682 >>2933003
Anonymous
6/4/2025, 10:05:57 AM No.2921973
>>2921972 (OP)
https://rentry.co/insulationshit
Replies: >>2928804
Anonymous
6/4/2025, 3:53:29 PM No.2922005
how-to-insulate-windows-step-2
how-to-insulate-windows-step-2
md5: 5a0c885e5ff0524e6d5011e91e686e3d๐Ÿ”
For windows you could use plastic film. We used to put it up in the winter, it helps keep condensation off too.
Replies: >>2922239
Anonymous
6/4/2025, 4:44:37 PM No.2922013
>>2921972 (OP)
wood style construction leaves cavities for insulation it is shipped pre cut to fit these slots, of course the wood acts as a thermal bridge so r value changes with moisture in the wood. For concrete structure increasing thermal mass might slow transfer like a concrete densifier.
silica and lye/cat liter and drain cleaner.
Replies: >>2922019 >>2922023
Anonymous
6/4/2025, 5:09:57 PM No.2922019
>>2922013
>silica and lye/cat liter and drain cleaner.
What the fuck is this?
Replies: >>2922027 >>2922059
Anonymous
6/4/2025, 5:25:29 PM No.2922023
>>2922013
>increasing thermal mass might slow transfer
That's usually the opposite, you want more air or gases with low thermal mass(and transfer). Only that it has to be isolated air, like inside brick or polystyrene or whatever.
Replies: >>2922060
Anonymous
6/4/2025, 6:09:34 PM No.2922027
>>2922019
Itโ€™s the same thing in those little packets in the box your shipment came in labelled โ€œdo not eatโ€ that you ate.
Anonymous
6/4/2025, 8:44:38 PM No.2922059
>>2922019
opps makes water glass, sodium silica. you can buy lithium water glass instead of the sodium kind, but i do not know the benefits.
Replies: >>2922665
Anonymous
6/4/2025, 8:46:17 PM No.2922060
>>2922023
different materials slows transfer rate but more mass has more to transfer, i digress different materials is the ideal.
Replies: >>2922227
Anonymous
6/4/2025, 9:51:26 PM No.2922074
>>2921972 (OP)
Only difference is in north america we sink in the windows on the inside.
And then your wife fills the sunk-in window sills it made with expensive knick knaks from pier 1, crate & barrel or restoration hardware.
Anonymous
6/4/2025, 10:17:28 PM No.2922079
>>2921972 (OP)
There is literally nothing you can do about this, unless you want to spend horrendous amounts of money on higher-performing insulation materials. It's simple physics: The total effect of an insulator is the effectiveness of your chosen insulation material multiplied by its thickness. You want a better insulation layer? Either make it thicker or use a better insulator.

It's no different in the US. As was already pointed out, the aesthetic difference is just due to the fact that it's the norm to place windows more-or-less flush with the outside wall instead of the inside wall.
Replies: >>2922227 >>2925570
Anonymous
6/5/2025, 6:55:09 PM No.2922227
>>2922060
The theory works, but in practice the heat transfer across 10cm of polystyrene is already so low that it's a complete waste of money investing into an (expensive) thick additional layer just for the sake of heat buffering.
>>2922079
>The total effect of an insulator is the effectiveness of your chosen insulation material multiplied by its thickness.
It's nowhere near multiplied, it's a logarithmic-like curve. There's no real reason why buildings are insulated with 20cm XPS when you're only getting like 8% extra insulation by the second 10cm, and an 8-10cm layer would be way easier to blend in with the appearance of the building. Phenol and PIR aren't that expensive, and with those you can go down to 5cm.
Replies: >>2922232 >>2923792 >>2928804
Anonymous
6/5/2025, 7:18:16 PM No.2922232
>>2922227
not a layer an hcs crystalline structure growth inside the concrete increasing density, the details are fuzzy to me, but the upshot is the concrete becomes significantly heavier, i think you having trouble following the conversation, try one post per conversation like turn based combat.
Replies: >>2922236
Anonymous
6/5/2025, 7:41:58 PM No.2922236
>>2922232
What I said applies to a new build the same, because even on a new build, densifying concrete is not free. On top of not being free, densifying concrete increases its heat conduction, so if you're not adding extra thickness, you're actually losing more heat. Your posts read like schizophrenic rambling and the actual content is not much above that, only that densifying concrete is actually a thing that is done, but it's usually done for structural reasons.
You can use fly ash to replace some cement in the mix and that, unlike silica, is financially viable, but you're still not getting much out of it. Any masonry wall will be a plenty big enough heat buffer if you have EWI, and if you don't have EWI, then you just fucked yourself for no reason, densifying the wall, by increasing your heat loss.
Anonymous
6/5/2025, 7:59:44 PM No.2922239
>>2922005
>without it looking like ass
Replies: >>2933006
Anonymous
6/7/2025, 7:53:53 PM No.2922665
>>2922059
Fine. It's sodium silicate. Or water glass. Or mineral paint.
What I don't get is what does it have to do with OPs question?
You paint the house with water glass? You mix it with the cement?
Replies: >>2923202
Anonymous
6/8/2025, 1:00:05 AM No.2922720
Ely_vation_blocs
Ely_vation_blocs
md5: d321c2a5a4148e615ee28f314e93f033๐Ÿ”
>>2921972 (OP)
Sounds like you're talking renovation, but for new build if you use autoclave aerated concrete i.e. Ytong you don't need so much added thickness since the wall is the insulation.

Sunken doors/windows is actually good though, since it protects the openings from rain. Your caulking will last longer and you are not depending on it as much anyways.
Anonymous
6/10/2025, 2:22:15 AM No.2923119
4a60c28823d35be9_985365
4a60c28823d35be9_985365
md5: 25bd102d5bfa0bfaf9dcc3aaaad4646f๐Ÿ”
>>2921972 (OP)
>How do they do it in the civilized world, so that you get decent insulation without having your home look like garbage?
You may not like it, but your picture is what peak house construction looks like in all the world.
Anonymous
6/10/2025, 12:51:01 PM No.2923194
>>2921972 (OP)
actually did a project on this. first start with triple glazed windows and highly insulate your roof, get your cavity wall filled if this isn't the case already, and get the airtightness measured. insulation on the outside walls should be a last resort, not something to start with
Anonymous
6/10/2025, 1:53:15 PM No.2923202
>>2922665
it soaks in and increase the thermal mass, it is a concrete densifier. meaning per a given volume concrete treated with water glass has more mass. It is applied after set-up, in theory you can apply it when-ever and multiple times, but i assume you get diminishing result every time.
water glass also seals the concrete reducing movement of water, but it increases hardness, so it becomes more brittle. I would compare it to increasing the thickness of your concrete wall. this will have an effect similar to heating up a thick cut of meat vs a slightly thinner cut of meat.
Anonymous
6/10/2025, 2:00:44 PM No.2923203
o8dnbqpx07xb1
o8dnbqpx07xb1
md5: b0fe40fc0f9d4cfbe582c90ae9aa4a15๐Ÿ”
>>2921972 (OP)
>muh house has to look pwetty
typical woman
Replies: >>2923218
Anonymous
6/10/2025, 3:37:23 PM No.2923208
>>2921972 (OP)
>How do they do it in the civilized world, so that you get decent insulation without having your home look like garbage?
they don't insulate and just pay more for gas and AC
Anonymous
6/10/2025, 4:39:11 PM No.2923218
>>2923203
I lived in a commieblock for the first two thirds of my life, I deserve a house that looks pretty
Replies: >>2923282
Anonymous
6/10/2025, 4:53:41 PM No.2923221
I'm adding insulation to the exterior when I get around to redoing the siding on my house. I hate the idea of stuffing insulation in the cavities of my walls just like I hate the idea of sealing everything up so tight it's held together by caulk. Our old house has no insulation, but it gets great air flow so a little water won't totally fuck us with mold. Insulation on the outside is superior anyway.
Anonymous
6/10/2025, 9:16:59 PM No.2923282
>>2923218
Do you have an example image of a pretty house?
Anonymous
6/13/2025, 12:04:49 AM No.2923792
yum
yum
md5: c736bba8ddfdcc2fc6332133ae9ae84c๐Ÿ”
>>2922227
>polyisocyanurate mentioned

best flavor of foam
Replies: >>2923814
Anonymous
6/13/2025, 12:32:29 AM No.2923798
>>2921972 (OP)
>eastern europoor
i guess if you can't afford siding, you can't afford siding
Replies: >>2923872 >>2925566
Anonymous
6/13/2025, 1:31:01 AM No.2923814
polyiso
polyiso
md5: e52daa12aa07ef0f26e1ce05dfd22d02๐Ÿ”
>>2923792
depending on the blowing agent used in manufacture, polyiso can lose a lot of insulating performance at low temperatures, i.e. when it's needed the most.
Replies: >>2929297 >>2929308
Anonymous
6/13/2025, 8:27:41 AM No.2923872
fall-barbie-dream-house-wallpaper-3
fall-barbie-dream-house-wallpaper-3
md5: b6db3cdb2fc114f6086f28073d4f8d24๐Ÿ”
>>2923798
>the rich American flex is covering your house in plastic

this is what your house looks like
Replies: >>2923882
Anonymous
6/13/2025, 10:14:19 AM No.2923882
>>2923872
Mine is formed concrete walls, 2 inch foam insulation, then metal siding. It doesn't get cold so inside insulation doesn't do much, but It will be fireproof which is what I needed.
Replies: >>2923897
Anonymous
6/13/2025, 3:33:52 PM No.2923897
stud_thermal
stud_thermal
md5: 10443d1dd92f5b8c8dcda6fffdd2d72b๐Ÿ”
>>2923882
It's a good build, but not typical for American homes.
Insulation on the outside is always more effective because you don't have thermal bridging at every stud.
Anonymous
6/14/2025, 12:02:19 AM No.2923968
>>2921972 (OP)
only problem with your pic is they cheaped out and didnt move the doors and windows outwards.
>15cm
holy why? the common post insulation here in norway on old houses is 5cm, then you dont really need to move windows and such if you dont want to. thats assuming the house has some poorfag attempt of insulation and the biggest benefits come from adding a layer of windbreaker on the outside under the outer siding. on most post ww2 houses this will give a total of 15cm ish insulation, depending on how its buildt you can maybe take the time to replace or check the original insulation. older houses might be solid logs and thats when we migh step up to 10cm if possible but again, its the windbreaker that does most of it and 5cm is far better than nothing.
15cm is the minimum/standard total insulation of a new house. no reason for anyone to add that to an existing house ever.
Replies: >>2923982 >>2924014 >>2930639
Anonymous
6/14/2025, 1:01:12 AM No.2923971
They do stucco over the existing exterior
Anonymous
6/14/2025, 3:06:21 AM No.2923982
clay_block_insulated
clay_block_insulated
md5: 223320fb3a2c26650d912256fefb24e0๐Ÿ”
>>2923968
>15cm is the minimum/standard total insulation of a new house. no reason for anyone to add that to an existing house ever.
Maybe heating is free in Norway, but in most countries with cold winters it's a significant monthly expense. Instead of paying for decades of heating bills, which get higher and higher every year, you invest the money one-time into insulation.

Of course, if you change houses every few years, future residents benefit at your expense, which is why in America few people bother to properly insulate their houses. In central/eastern Europe people actually own their houses, and they live there for generations, so it makes sense to insulate them properly.
Replies: >>2924036 >>2924036
Anonymous
6/14/2025, 6:03:01 AM No.2924006
thumbnail-sistema-de-isolamento-com-cortica-a-vista-709964206
>>2921972 (OP)
Cork
https://www.secil.pt/pt/solucoes/construcao-nova/isolamento-termico/sistema-de-isolamento-com-cortica-a-vista
https://isocor.pt/produto/aglomerado-cortica-expandida/
Replies: >>2930639
Anonymous
6/14/2025, 6:51:22 AM No.2924014
>>2923968
what's a wind breaker? when I google it, I only get images of jackets and suggestions that i should put some walls around my porch as to stop the wind.

Do you mean the air pocket thats trapped between the wall and the insulation?
Replies: >>2924049
Anonymous
6/14/2025, 12:20:38 PM No.2924036
4WKTqE8WuYVMEPACQ4kdlzsPf
4WKTqE8WuYVMEPACQ4kdlzsPf
md5: 8a842e3c1081aab6cf21e73d7ee646fd๐Ÿ”
>>2923982
even a crap wall construction has as some insulation value to it so you get up to modern standards by adding 5 or at worse 10 cm.
>>2923982
a layer between the insulation and outer siding that stops any wind or air draft, yet its not air/moisture proof it has to breathe to prevent mold. probably has a better english name than windbreaker. google isola, tyvek or mataki thoose are the product names i remember.
Replies: >>2924049 >>2924049
Anonymous
6/14/2025, 2:25:30 PM No.2924049
Masonry_Figure_06
Masonry_Figure_06
md5: b699cce7d58b41440adf4ef90f764183๐Ÿ”
>>2924014
>>2924036

In English it's typically called "air barrier" "weather resistive barrier".

It is vapor permeable because the assumption is that water will get in somewhere and will need to dry out. As well, if you live in a cold climate the required interior side "vapor barrier" won't be perfectly sealed so moisture that leaks through the vapor barrier (blue membrane in >>2924036 pic) must be able to evaporate.

It's the "good enough" approach to building, but buildings intended to last a long time and have low operating cost tend to use pic related approach, as in below link.

https://buildingscience.com/documents/insights/bsi-001-the-perfect-wall
Anonymous
6/21/2025, 10:13:21 AM No.2925565
>>2921972 (OP)
You're a fag but I'll bite. Build da hause all outta 37cm glued autoclaved aerated concrete blocks and FUCK YOURSELF IN THE FACE. You're welcome. No there is no other good way to have an insulated house without buying the windows and doors in it.
Replies: >>2925566
Anonymous
6/21/2025, 10:22:43 AM No.2925566
>>2923798
>if you can't afford siding, you can't afford siding
Siding plainly DOES NOT EXIST in Europe.
Well, there exist LITERAL FUCKING BRICKS you build up with a small gap between it and the insulation but it's not popular because GEE IT SURELY CAN'T BE AS CHEAP AS CEMENT-BASED GLUE, A FIBERGLASS NET AND PLASTIC STUCCO SHITE TO FINISH IT OFF INSTEAD? The shit on the OP pic, that's what I'm talking about, cheapest facade in Yurop, it works but it doesn't take much to break and once it does tough luck blending in any repairs well.
>>2925565
>without buying the windows and doors in it.
Burying. Surrounding them with insulation. No fucking solution other than building the house out of an insulator, OP fag.
Replies: >>2925892
Anonymous
6/21/2025, 10:52:13 AM No.2925570
>>2922079
>higher-performing insulation materials. It's simple physics: The total effect of an insulator is the
What are those? That aerogel nasa stuff?
Replies: >>2925571
Anonymous
6/21/2025, 10:56:10 AM No.2925571
>>2925570
Vacuum boards are the strongest commercially available wall insulator. Bare minimum wall insulation thickness for generic European weather is 6cm gray EPS, 4cm PIR/phenol, 3cm aerogel, 2cm vacuum. Even the 6cm with gray EPS isn't that bad, burying your windows in 20cm EPS is a meme.
Anonymous
6/22/2025, 5:11:07 PM No.2925892
ld-systemprofile-referenz-falk-1100-tr-3-plus-2-1024x768
>>2925566
>Siding plainly DOES NOT EXIST in Europe.
https://www.hornbach.de/c/baustoffe/fassadendaemmung/fassadenverkleidung/S4071/

It exists and is available, but there isn't an easy way to attach siding securely through a few inches of insulation, so people just opt for the stucco finishes on houses. You will see siding more commonly on sheds/garages where it can be fastened directly to structure.
Replies: >>2925986
Anonymous
6/23/2025, 12:27:12 AM No.2925986
1669201969_4ed9e0bfff67a6784c17
1669201969_4ed9e0bfff67a6784c17
md5: 608da9b2ba95801be228d7c9be727c22๐Ÿ”
>>2925892
>but there isn't an easy way to attach siding securely through a few inches of insulation,
why?
pic related is the standard way of fixing insulation to the wall. couldn't you just make a rod that sticks out of it, and you could attach the siding to that?
Replies: >>2926026
Anonymous
6/23/2025, 4:12:44 AM No.2926026
Slotted-Z_vertical-e1686032734135-902x1024
Slotted-Z_vertical-e1686032734135-902x1024
md5: bd46f92e3e39e449376531bd789c55d0๐Ÿ”
>>2925986
Siding is a lot heavier than the stucco finish, and I think they use adhesive in addition to such fasteners.
Typically some kind of channel is needed to support the siding weight like in pic related. Could also just be wood battens but that's thermally inefficient.

What you're showing could work with the lightest/cheapest vinyl siding if you space such discs at 40cm horizontally (or closer) and space vertically to match the siding course dimension (typically 25.5cm for American style vinyl siding), then fasten the siding with short screws through the discs (ensuring to not screw tightly since vinyl siding expands/contracts a lot and must be allowed to slide freely at the fastener).
Anonymous
7/3/2025, 10:07:23 AM No.2928640
12fe06e5c0bc9ef0a9bb5d411ddecd55
12fe06e5c0bc9ef0a9bb5d411ddecd55
md5: 694c4b7f2e5d97413374d03c5ee34f7c๐Ÿ”
It's called air.
Replies: >>2929249
Anonymous
7/4/2025, 12:52:21 AM No.2928804
>>2921972 (OP)
you can insulate in the inside anon
>>2921973
>>2922227
this take is bad, is not only the 8% extra, you are losing several times more heat, you can avoid having a proper heating system at all, or shrink it a lot saving more money than the insulation, its the more homogeneous thermal distribution, that you house doesnt get cold or hot if you are out for many days, and when you go back you can put any shitty 20โ‚ฌ heater and get the house warm in an hour, and many other crap that affect comfort. you are not doing a proper systematic analysis, that is the problem of looking at insulation as something different from the other parts of the energy system of your house.
in my case for a complete renovation 25cm of insulation is cheaper than 10 + the heating system, half assed solutions, which is what most people do are more expensive bc you are investing in two different full systems
Replies: >>2929304
Anonymous
7/6/2025, 1:23:55 AM No.2929249
>>2928640
>air
2" air space = R2 for sealed cavity with zero airflow (not happening with weep holes)
2" of cheapest EPS foam insulation = R8
Anonymous
7/6/2025, 8:21:43 AM No.2929297
>>2923814

What a niggerish material one that, used in constructions, alters its conductivity in the range of operative temperatures O_O
Replies: >>2929308
Anonymous
7/6/2025, 8:31:05 AM No.2929300
CobBauge-test-block
CobBauge-test-block
md5: 374f17eae9de829a6bc79d051a829868๐Ÿ”
I'm here to tell you about lightweight cob. It's going to look like ass unless you are skilled, but it is dirt cheap.
https://www.cobbauge.eu/en/technical-documentation/
Replies: >>2929302
Anonymous
7/6/2025, 8:58:22 AM No.2929302
>>2929300
>make my walls literally out of bug food
Anonymous
7/6/2025, 9:15:54 AM No.2929304
>>2928804
>is not only the 8% extra, you are losing several times more heat
Sure, look at it the other way. Going from 8cm to 20cm halves your wall heat loss. But the wall heat loss is only 20-30% of your total heat loss, so you're still only saving maybe 15% on heating overall, going from 8cm to 20cm wall insulation. Or let's be generous and say it's 20%. Is that 20% difference the critical, decision-making point that enables you to completely drop central heating? No it's not. You're either okay with heating with split ACs and electrical underfloor, or you're not. You can do it just as well with 8cm EWI as with 20cm EWI. Heating with split AC and direct electric is entirely viable in any kind of insulated building, but you're always sacrificing some level of comfort or running costs or both for avoiding the investment into central heating, regardless of whether your heat loss is 30W/sqm or 25W/sqm.
Replies: >>2929308
Anonymous
7/6/2025, 10:50:26 AM No.2929308
>>2929304
>30W/sqm or 25W/sqm.
bc you should try for less than 10W/sqm, which is where you get the "synergies", anon you are arguing against a weird middle ground that no caring technician actually recommends (which i know that at least in my country are hard to find but that is another different problem), just the different builders and renovation companies.
PEOPLE please go check with a technician, an architect or an engineer that will calculate the whole ins and outs of the house, a systemic approach, not a fucking builders, insulation or equipment company those are only interested in selling their part and everything they propose is half assed solutions.
also is better to think in terms of the amount of heat you lose, not the amount you avoid losing.
going from a 80% to an 95% doesnt seem like a lot, only a 15%, but you actually need 4 times as much heat for the 80% house. And your house is actively producing heat, bc of the freezer, bc of the appliances and the inhabitants, if you go all in getting close is really easy.
>>2923814
>>2929297
perfect for hot climates desu
Replies: >>2929312 >>2929317
Anonymous
7/6/2025, 11:25:51 AM No.2929312
>>2929308
also forgot to add, you get grants in you insulate better, at least in most of the EU, and even more if you do a general improvement on power consumption
Replies: >>2929317
Anonymous
7/6/2025, 12:12:56 PM No.2929316
>>2921972 (OP)
>Is there a way to properly insulate your house without it looking like ass?
>15cm thick sheets

The mistake here is putting something there in the first place.
The best insulator is nothing. No material = no heat conduction. So what you want is a vacuum, not 15 cm of trash.
The vacuum can be really thin, even 1 ยตm would suffice.
Replies: >>2929318
Anonymous
7/6/2025, 12:21:43 PM No.2929317
>>2929308
You're responding to a thread about retrofit EWI insulation. If you want to get to passive house levels, you need, above all, HRV, which is a large enough investment in itself. You need serious floor insulation, ceiling insulation, house has to be airtight outside the HRV system.
>going from a 80% to an 95%
You're not going from 80% to 95% with EWI.

You're building a new house? By all means, insulate it all the way, go for <10W/sqm, it's going to be designed from the ground up to have 20cm insulation, in many cases you're not even allowed to build for anything much less. You're retrofitting insulation to an existing house? You already have the radiators or UFH, you already have a gas boiler or heat pump, there's no additional savings on the initial investment. You very likely can't insulate the floor, you can't seal the whole house and you can't install an HRV, so you're never getting to 10W/sqm. In this case, using 8cm insulation and not making your house look retarded is a sensible choice, because going to 20cm+ is not gonna reduce your heating bills by a particularly large amount. That's the whole point here. If someone asks
>do I really HAVE to insulate with 20cm? It looks fucking ugly
the answer is "no", 8-10cm already does the vast majority of the work.
>>2929312
Yeah, if you want the gibs then you usually have to go with 20cm. Which is retarded in itself, but it is how it is.
Replies: >>2929324
Anonymous
7/6/2025, 12:22:44 PM No.2929318
>>2929316
Vacuum is expensive.
Replies: >>2929347
Anonymous
7/6/2025, 12:48:10 PM No.2929324
>>2929317
look that the first thing i said was to insulate the inside instead.
If you go to the reentry only ewi is mentioned, and most people only imagine that as the only option, OP looks like that, but there are many other options.
ewi is absurdly overrated, filling the wall air cavity chambers with insulation should be the fastest and cheapest option, when possible, and ewi should always be combined with that if possible, bc you get a cheaper overall insulation and they kinda cover each other downsides, they tend to cover the thermal bridges the other system does. in any case it should be properly studied.
anon if you are doing a full building reform you wont have the old systems for granted... you may need to get rid of the system, bc its shit, or almost inexisted, there are many variables. and if you are doing a full renovation you can insulate in the inside, which is cheaper...
if you are the reentry guy please for fuck sake, add info on cavity insulation, interior insulation and other shit, at least mention it, so people can do their own research, bc is cheaper and often better than any other improvement of the house.
ewi is the second most expensive solution after the insulated ventilated faรงade, which is the ewi but with another external cavity wall, better for rain humidity and excess heat from the sun
Replies: >>2930600 >>2930610
Anonymous
7/6/2025, 4:35:02 PM No.2929347
>>2929318
and fragile
Anonymous
7/11/2025, 5:49:58 PM No.2930600
>>2929324
>If you go to the reentry only ewi is mentioned, and most people only imagine that as the only option, OP looks like that, but there are many other options.
OP is eastern europoor. EWI is about all we do. Or that metrosexual ventilated facade garbage.
>filling the wall air cavity chambers
The fucking what
Replies: >>2930625
Anonymous
7/11/2025, 6:15:55 PM No.2930610
>>2929324
Ton of places don't have cavity walls, but sure, I'll add it.
>interior
Interior wall insulation is a meme. If you don't have some protected faggot building that you're not allowed to alter the exterior of, then surely it's better to put the insulation on the outside than eating up 5% of your interior floor space with insulation. Your entire house's worth is in the interior floor space, so when you eat up the interior space to save on insulation costs, you're effectively losing 5% of the house's worth with the reduced floor space. On top of that, more moisture issues.
EWI is not expensive anyway, labor is expensive.
Replies: >>2930625
Anonymous
7/11/2025, 7:31:37 PM No.2930625
OIP-1544695591
OIP-1544695591
md5: 6d5697cdf3db38c33340b9b195108da5๐Ÿ”
>>2930600
in spain is mostly EWI too, at least in the layman mind is the only well know option
in the old times it was mandatory or at least super common for the buildings to have cavity walls, so you can fill them like picrel
they drill holes in your wall to the cavity wall and blow insulation inside it, its a single afternoon job. if done from the outside you dont even have any mess on your house
depending on how the cavity is, how thick and many other parameters, you will get better or worse results, or may not be able to do it properly, but when possible is the cheapest, by far, like half of the price of interior insulation?
random video in english https://youtu.be/6EIXb9SSHqA
you can /diy/ with a cheapo ash vacuum machine, if it can be used to blow but it would be easy, but as far i know you dont save that much bc the material is not easy to source if you dont work on this
>>2930610
both material and labor is cheaper on the inside, for one you dont need anything that needs to withstand the weather nor you need scaffolding, and there is the fact that you may be renovating the interior walls anyway. and if you need to do a new electrical installation the fact that you make a new drywall makes shit way cheaper too
as far i remember insulating in the interior was like 60% of the price of the equivalent ewi
Some of us live in places protected, yes, and i would prefer insulating on the outside, but you dont lose that much space, if you compare with the space you need for the heaters, storage for blankets etc, as i said you dont get many of the benefits unless you go all in
like in my case, going all in i dont need to care if my water lines freeze in winter when i am not there, bc they wont, but if i go only with the money optimal insulation i will need to care about that,and trust me is a recurrent problem where i have the house
Replies: >>2930629 >>2930644
Anonymous
7/11/2025, 7:49:19 PM No.2930629
>>2930625
>in the old times it was mandatory or at least super common for the buildings to have cavity walls, so you can fill them like picrel
no one in east yurop has this shit
I only thought angloids had this
Replies: >>2930634
Anonymous
7/11/2025, 8:11:53 PM No.2930634
>>2930629
different places have different methods. spanish old retarded superwide cavity walls nowadays makes for really cheap insulation, yet people way 3 or 4 times for worse EWIs
tho i know of someone who fulfilled his cinder blocks instead, lol
now that i think about it you can do an external or internal wall and then insulate it that way, i think that is more common in germany and other places as it uses a ton less labor. laura kampf did that in her house in germany
like an ewi with a chamber to the old wall and then they filled it, should be way cheaper than the equivalent ewi
https://youtu.be/BO9Qmr4WRaw
https://youtu.be/Xpb3l5_iUqs
(i wouldnt do or recommend most of the shit she is doing, but i find it entertaining and cannot think of another example)
Replies: >>2930942
Anonymous
7/11/2025, 8:42:35 PM No.2930639
>>2924006
Too brittle and will eventually rot.

>>2923968
Speaking of Norway. What I dont get is why we are all obsessed with insulation nowadays, while our ancestors had centimeter thick gaps in their wood shod walls, and clay tilled roofs with nothing under it, and they didnt die from hypothermia. So why do we need so much insulation nowadays while the globe keeps heating up.
Replies: >>2930650 >>2930654 >>2930938
Anonymous
7/11/2025, 8:49:59 PM No.2930644
>>2930625
>create impenetrable moisture barrier (void)
>building survives for hundreds of years
>governmnet pays idiots to fill them with polystyrene
>walls all get damp and moldy
>government pays the same guys to go round and suck it all back out again
the lesson is that government are the smartest people in the world and cowboy builders are the most trustworthy
Replies: >>2930654
Anonymous
7/11/2025, 9:06:43 PM No.2930650
>>2930639
>while our ancestors had centimeter thick gaps in their wood shod walls
It's because ancestors lived near forests and gathered a fuckton of wood to burn, lived with animals inside the house, and didn't care that much if every room was comfortably livable as long as they didn't die from hypothermia. Now when you have to transport gas from thousands of kilometers away to heat your house and wood is expensive, it might be worth sticking polystyrene under your roof tiles so you have more money to spend on buying anime figurines from Japan.
Replies: >>2930942
Anonymous
7/11/2025, 9:20:12 PM No.2930654
>>2930644
>create impenetrable moisture barrier (void)
the air chambers are usually ventilated anon, making airtight shit was really difficult in the old times... and are often not used as moisture barrier at all, at least in spain was meant to insulate them, and often used to to cover the columns and shit, that is why they are often so wide
that shit is studied, the insulation allows shit to breath or not depending on what you need.
>to fill them with polystyrene
again i never said that... i am very against those
and is not really offered anymore, at least here
you get offered cellulose, rockwool, cork, sheep wool, and funny enough crushed recycled insulation from old fridges
only if you have humidity problems you get offered balls of poliestirene, and those breath through the holes among them
if you really want to do an impenetrable barrier, you do the bullshit that were done 30 years ago filling the chambers poliuretane foam, which is ultra retarded, given how prone is to not cure properly and leach toxic shit inside your house, and i havent seen offered anywhere in the last decade
or just use some sort of agglomerate with the eps balls
>>2930639
old houses were more insulated that we think, not airtight, that is true, but the bare rock walls is a modern bullshit, yet most of the "trick" was that the bigass walls had tons of thermal inertia, so its easier to deal with the temps as you only deal with "mean" temps and you can store heat
Anonymous
7/13/2025, 12:39:46 AM No.2930938
>>2930639
>while our ancestors had centimeter thick gaps in their wood shod walls, and clay tilled roofs with nothing under it, and they didnt die from hypothermia
Because they went and chopped a fuckload of wood behind the house and burned a fuckhuge fire in a fuckhuge furnace to make a fuckload of heat.
Norwegians to this day don't give too much of a fuck about the efficiency of their heat source because they have infinite hydropower and can heat their homes with individual resistive electric radiators in each room AFFORDABLY, it's "only" 100% efficient. The rest of Yurop fucks around with water radiators running on gas boilers or heat pumps that is less energy cost but an infinitely more complicated expensive system to install.
Anonymous
7/13/2025, 12:59:31 AM No.2930942
>>2930634
>different places have different methods
Indeed. Houses in EE generally had jack shit until EWI popped up in the late 80s to early 90s.
>>2930650
Hah, someone already said exactly what I thought.
Replies: >>2932333 >>2933024
Anonymous
7/13/2025, 2:25:16 AM No.2930957
>>2921972 (OP)
it would look infinitely better had they reset the windows to the outside.
to answer your question, the only way to build a home properly is with wood.
Replies: >>2930958 >>2933022
Anonymous
7/13/2025, 2:33:09 AM No.2930958
house-fire
house-fire
md5: a2ddd9b6f542f813ade1eb73589db276๐Ÿ”
>>2930957
>the only way to build a home properly is with wood.
Replies: >>2933022
Anonymous
7/18/2025, 11:29:43 AM No.2932333
>>2930942
the idea in spain is that is almost free, a 3 cm gap does provide actual insulation as it is not wide enough to make convention, same shit that is used in multiple pane windows.
but then those same cavities were calculated with more cm to justify more insulation, omitting that when having like 12cm you get convection, and also was used to hide columns, electrical elements and shit. but you can easily insulate most shit. yet again most people dont bc god know why
same old shit on putting dual pane aluminum windows without any kind of thermal break instead of just buying pvc ones... people here doesnt understand insulation and goes all in the retarded meme of the moment
Anonymous
7/19/2025, 11:47:01 PM No.2932682
>>2921972 (OP)
my house is from the 30s or 40s but its just 2 layers of brick + modern windows and it retains heat almost too well.
Anonymous
7/21/2025, 7:03:18 AM No.2933003
hummer
hummer
md5: f0a94654df794b6b7eabed1f6d46b3e3๐Ÿ”
>>2921972 (OP)
what is the last layer before paint?

What I'd do is add some fancy trim around all those sunken openings, and the trim would carry some window, or even stained glass that would hinge outward. https://www.wayfair.com/decor-pillows/pdp/august-grove-18h-stained-glass-window-panel-sunflower-w111327791.html?auctionId=336bf719-f70b-49a5-84bf-d54a1ec3d191&adTypeId=1&piid=

Have them able to latch, and/or lock open at 90 or 180 to be real storm shutters.

Of course, they don't have Hummers in Europe, so it might be a problem.

Add one of these to front door. I once had an old German land lord and one of his tenants asked me about installing screen door to the old house and the fucking Nazi flipped out about how it was "tacky" (you couldn't see it from street).

This Nazi also refused to install or let anyone install a garbage disposal, and this was the only house I've known in 'Frisco Gay Area with cockroaches running around outside, except for when I worked in The Projects, which also DIDN"T HAVE GD units, just roaches up the ass.
Replies: >>2933010
Anonymous
7/21/2025, 7:08:19 AM No.2933006
>>2922239
You can put that shit on inside and outside and you can barely notice it unless close. I wouldn't shy away from gluing an extra "frame" of trim just outside the first layer, inside and outside, to gap an additional layer, for total of 4 new layers of air-sulation.

I did a 1/2 assed job on rental house on exterior and it lasted for a few years until I moved out.

Also cums in shade or even mirror finish, and maybe even see through "white" or make your own fancy designs.
Anonymous
7/21/2025, 7:16:51 AM No.2933010
>>2933003
>Add one of these to front door.
https://www.homedepot.com/pep/Unique-Home-Designs-36-in-x-80-in-El-Dorado-Black-Surface-Mount-Outswing-Steel-Security-Door-with-Heavy-Duty-Expanded-Metal-Screen-5HS620BLACK36/202326389?g_store=&source=shoppingads&locale=en-US&pla&mtc=SHOPPING-CM-CML-GGL-D30-030_031_STORM_SECURITY-NA-NA-NA-PMAX-7073094-NA-NA-NA-NBR-NA-NA-NEW-NA&cm_mmc=SHOPPING-CM-CML-GGL-D30-030_031_STORM_SECURITY-NA-NA-NA-PMAX-7073094-NA-NA-NA-NBR-NA-NA-NEW-NA-20448246925--&gclsrc=aw.ds&gad_source=1&gad_campaignid=20443612238&gclid=CjwKCAjwp_LDBhBCEiwAK7FnktnEaKHHaef-pWgIhLbnO0YZuiAPaIwgrx9ACyiqKHCx2juyHW7S7RoCQqUQAvD_BwE

it will also add a much needed layer of Security because I don't see a peeper on that front door?

How you supposed to know if its marauding Immigrants or worst yet the Govt's meme police?

Also lets you enjoy breeze without houseflys.

What is a Mexican ranchette? Thats when you got lots of flies but no livestock.
Anonymous
7/21/2025, 8:42:30 AM No.2933022
>>2930957
I'm not even sure how would that work. EPS insulation is literally the same material as packing foam.
You could lean on the door or window and it would fall out of the wall.

>>2930958
I don't know a lot about wooden construction, but when you put something on your wall that is 90% air and 10% hydrocarbons by volume perfectly mixed together, you don't get to meme about fire safety
Replies: >>2933042 >>2933441
Anonymous
7/21/2025, 8:51:39 AM No.2933024
>>2930942
Actually people here in EE used to build houses and apartment blocks out of red brick. Before climate change, houses were engineered so that the walls would retain enough heat during most of the year so that it would warm the building during the night, and keep it cool during the day.

Unfortunately this doesn't work when you have weeks during which the mid temperature is above 30C, and these houses turned into ovens.
Anonymous
7/21/2025, 10:23:44 AM No.2933042
>>2933022
anon many foams insulation are very stiff and with lots of load capabilities, you can even put a concrete slab and a car above them. of course those grades are more expensive
Anonymous
7/23/2025, 3:51:07 AM No.2933441
1644097264184
1644097264184
md5: 69ab2285631b15602bf4215dc8738956๐Ÿ”
>>2933022
>when you put something on your wall that is 90% air and 10% hydrocarbons by volume perfectly mixed together, you don't get to meme about fire safety
The foams used in construction often have fire retardant additives, + the stucco/render coating is non-combustible.
Also, mineral fiber is commonly used rather than foam.