The Ugly Truth About Basement Vapor Barriers

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Installing a vapor barrier in the wrong location in a basement wall can end up trapping moisture in the wall assembly and supporting mold growth, leading to the rapid deterioration of the interior framed walls and finishes. It is better to not have a vapor barrier than it is to install one in the wrong place. In this video, we dive into the science behind vapor barriers in basements as well as some best practice strategies to provide interior moisture control without compromising the integrity of your home.
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6 сен 2024

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Комментарии : 136

@ASIRIDesigns Месяц назад

*A Design Guide To Dry & Comfortable Basements eBook* : asiri-designs.com/shop/ols/products/basement-design-guide

@RatedCfm-cz8ff 2 месяца назад

In western Canada, it was code for many years to have vapor barrier between the concrete wall & framing, as well under the drywall. The building code changed in the late 90s, no more vapor barrier permitted between the concrete wall,.& the framing. It was discovered that moisture was building up in between that vapor barrier, & the concrete, mostly from frost build up during winter months. The moisture would remain almost indefinitely, and emit a mildew odor, usually at its worst in the early spring.

@pwblackmore 2 месяца назад

There was a lot wrong with the BC building codes previously... 'leaky condos' being one prime reason for change. Water is the enemy of wood... do whatever you can to eliminate its ingress from outside first. Then make sure whatever is inside can breathe its way out.

@Googaliemoogalie Месяц назад

My home was built in 2003 and has a vapour barriers on external walls. Over insulation and studs

@laurenbrooks56 4 дня назад

@@Googaliemoogaliein the basement?

@gnargnar1992 2 месяца назад

Probably the most underrated building engineering channel.

@stonecoldcustoms 2 месяца назад

Great video - Amen! It took me 15+ years of home ownership before I learned this the hard way. Eventually figured out that no vapour barrier and rigid foam is the only way to go!

@timothychung4811 2 месяца назад

There is a reason why they're used in some aspects in concrete forming structures.

@theorenhobart 2 месяца назад

@@timothychung4811 oooh but it must be secret because you don't explain it ?

@krakenwoodfloorservicemcma5975 Месяц назад

i have been in construction for 40 years. I have really never seen a good way to finish a basement other than drylocking the concrete and keeping it open. Radiant heat helps a lot though.

@davidjames4915 Месяц назад

We have a basement built using PWF - permanent wood foundation. Amongst other requirements was that there be granular drainage on the outside of the foundation walls, which continues on underneath the walls and the floor, then is tied into a sump pump. Our basement has never been anything but bone dry... it's probably the driest space in the house. I can't say I've ever truly understood why concrete foundation walls are allowed to just be backfilled with whatever soil came out rather than requiring drainage.

@danielfortin5920 2 месяца назад

Insulation on the exterior wall. Simple and super effective ! The saturation point (dew point) won't be in the basement, but outside.

@larion3296 2 месяца назад

Here in Sweden we are primarily installing permeable variants of basement insulation and drainage systems, such as Isodrän. They have probably been dominating for the last 15 years. The insulation is installed on the outside without any membrane. With gravel and drainage tubes below the basement walls. The idea is that the basement walls dry out from the inside, which requires a heated space, and causes a high humidity during the first months. With too high water table some membrane might be needed on the outside of the insulation.

@PonkyKong 2 месяца назад

They build a water proof concrete bottomed box.

@bluearcherx 2 месяца назад

i assume this is for new builds with appropriate exterior water management and not for 84 year old basements

@ASIRIDesigns 2 месяца назад

That's exactly right. To address older existing basements, check out this other video on the channel: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Lm9q8X2L47I.htmlfeature=shared

@pwblackmore 2 месяца назад

Thankyou for this info - well-presented and informative. You are building for the future, not just to look good. I was working with a colleague when the Building Inspector approved the basement VB being to the local West Coast Canada code. When the BI left, my buddy cut the VB with a huge X, top to bottom - because, as he posited, the moisture would be retained within the stud bays... "Gotta let the walls breathe". I adopted that, but I really should have seen something like this video first. Remember, the code is the minimum... always improve on it. This video explains the best ways. I see you advise EPS, but it has its hazards - off-gassing, and combustibility in particular

@tucoblondy1643 День назад

We sometimes hang our 2x4 top plates staple plastic to the face of that then add another top plate to create a plastic drape behind the wall usually 1 to 2 inches away from the concrete foundation, then pull the plastic under our bottom plate before fastening to the slab , and stick frame and toe nail our studs . ( Chicago climate )

@phillbr51 22 часа назад

I didn't install one when I finished my basement. I just put up walls with fiberglass batts and drywall. Left space between the wall and foundation and a gap at the bottom of the wall that's covered with trim. No mold.

@kanento 2 месяца назад

I have been thinking this for years as the basement walls would have moisture and you had the pink insulation it would get wet and not be able to breath with the vapor barrier. I found this was the case when I purchased another home build in 1950 with a reno in the basement. I noticed drywall was soft so I knew it was getting wet even with the barrier. I have to tear it all out and do foam board first

@birdologytr3556 2 месяца назад

If you buy a new home save money on the initial purchase by leaving your basement undeveloped this will give you a chance to see what state your foundation walls are in by the end of construction.. seen some pretty large cracks in the past that just get covered up . If you have walls that are not in the mechanical room covered up and the rest are bare I would tear that out to make sure the builder wasn't trying to hide something... Just a friendly tip..

@johnwhite2576 2 месяца назад

I think you also need to do a video on exterior foundation insulation in this context….other than the issue of deterioration/bugs, it is another viable approach yes?

@ASIRIDesigns 2 месяца назад

Absolutely, if you can protect the exterior insulation from bugs and moisture, it works great. The problem is that this can get complicated depending on what type of rigid insulation you're using. Rigid foams installed on the exterior of the foundation walls have to be treated like ICF foundations, with a fully adhered membrane bonded to the rigid foam, and even that can pose compatibility issues with the adhesives. Rockwool works but you need thick layers and a protection course. For durability reasons I very much prefer installing the insulation on the interior for below grade walls. You can also locate it interstitially, as in the case of a "sandwich" panel, and that works great as well since the insulation is protected.

@rosegold7975 2 месяца назад

Very informative. Was always unsure about building basement walls the best way

@jacobbeckstrand6764 2 месяца назад

Great info! I have the original blueprints for my 1960 built walk out basement house. I'll be doing a remodel in the next few years and suspect I'll reach out to you for the best way to go about insulating the remodel. I like the way you think. I live in Vancouver Washington and like that you are local

@FrankandaTrailer Месяц назад

Question. What about rigid foam exterior. Below grade. Applies over a proper waterproofing membrane applied directly to exterior concrete foundation. Foam is sealed onto exterior as well. Then the foundation is allowed to breath and dry out properly for a couple of years. Then, finish basement. No vapour barrier. I’m not an engineer. I’m asking a question. What is the best most effective method of having a finished basement.

@ASIRIDesigns Месяц назад

@@FrankandaTrailer That works well, but only if you're able to keep the rigid insulation dry and away from ants and termites (easier said than done). Ants love to burrow into foam, especially damp or wet foam, and so from a durability standpoint my preference is to locate that insulation layer on the interior.

@johnburns2940 Месяц назад

Beautiful!! I was sceptical at first, but all that you detailed follows all that I know and makes Perfect logical/scientific sense. You have just upped my game. I'm in and subscribed! Thank you. Ps, just by default, I installed riding sheet foam on my basement walls, YAY!

@ASIRIDesigns Месяц назад

Glad it was helpful!

@zuck759 Месяц назад

so if you are building an ICF basement should you tape seems in foam blocks

@camelface1 2 месяца назад

Great uploads. Love the raw data.

@ASIRIDesigns 2 месяца назад

Thanks so much, glad the videos have been helpful!

@smallcrush3 2 месяца назад

I do have a vapor barrier in mine. But its applied right on the concrete wall, stops at about 2 ft from the floor. The studs are applied on the vapor barrier, which means the plastic film is squeezed between the studs and the concrete wall. There's also isolating foam panels which go from the ceiling to about 2ft from the floor. Dunno if that's desirable or not. No mold though, like at all, unless its deeply hidden behind the drywall... sure hope not!

@michaelriebandt6754 2 месяца назад

New Construction foundation concrete floor has visqueen (plastic sheeting) placed on floor before poring concrete and walls are of foundation have thick layer of more visqueen wrapped around outside walls sometimes repeating the steps. That is Building code (for decades) where I live also keeps moisture from entering past visqueen, Tar may not be enough.

@CommieCat 2 месяца назад

This is quickly becoming ym favorite channel for building science. I hope you keep on keeping on. I like being an educated GC.

@paulstewart2444 2 месяца назад

Why does are building code here in Manitoba,Canada require it then???

@joeltaron1950 2 месяца назад

Good question, I’m assuming many places have it as code. I’ve ripped out many basement walls in Winnipeg and found mold and rotten studs behind the poly. I think it has more to do with the quality of the foundation walls and damp proofing on the outside of the walls letting moisture in. Just my opinion on what I’ve seen in this area

@ScottTaylor-d7b 2 дня назад

I did this exact same thing on my basment foundation, but also added plastic between the framing/unfaced insulation and sheetrock, is that OK to do as well?

@WANDERER0070 2 месяца назад

Even better move is put Rigid foam board on the OUTSIDE basement walls ❤ all the way down to the frost line.

@SnakeHandler-g7u 2 месяца назад

Do you design residential buildings, or have a catalog I could look at purchasing plans from?

@jdawes4403 2 месяца назад

Thanks Sharif!

@NaturesInfiniteWELLth-fo6rs 2 месяца назад

I recommend considering hemp fiber insulation alongside mineral wool…(one brand rockwool), with similar qualities/benefits. I am planning to build a hempcrete home and will use the hemp fibre bats in the ceiling and crawlspace. :)

@Langhorstiness 2 месяца назад

hemp is organic and organic means it can turn into food for mold. All you need is some vapor condensation inside the hemp and you've just built a really expensive mold farm by accident. I don't think it sounds like the right application for hemp fiber insulation.

@WalkerEnns 2 месяца назад

How do you feel about insulated concrete forms? Based off the information in this video of having a couple inches of Styrofoam to prevent moisture/mold issues and still allowing the wall system to dry this seems like an ideal method of constructing not only basements but above ground as well.

@ASIRIDesigns 2 месяца назад

ICFs are a good system but they aren't a panacea. As I was telling another person in the comments, ICFs absolutely must be protected from water infiltration and insect damage with a fully adhered membrane, but it gets complicated because the membrane and the adhesives have to be compatible with the EPS foam, otherwise things like solvent based adhesives dissolve the foam. Any system can be made to work as long as the the foundation is well drained and the layers are in the right location. That's the key.

@myfavorites4300 10 часов назад

This is why ICF works so well in the basement. Concrete is insulated and no further vapour barrier.

@multipotentialite 2 месяца назад

What do you recommend for a wood foundation with polyethylene which is not a perfect air barrier (overlapped and stapled instead of taped, gaps near receptacles, etc)?

@ConstructionKronies Месяц назад

Excellent explanation thank you!

@joecan 2 месяца назад

Thinking back (24+ years ago), my builder used metal studs with pink insulation and vapour barrier from floor to ceiling in the whole basement. 7 years later, I finished the basement ( added some interior walls and electrical around the perimeter, so i had to cut the barrier to feed some electrical around the basement walls. I didn't notice any mold. This video makes though. Should I bust open a section to check, or just leave well enough alone?

@cmmartti Месяц назад

Vapour barriers in basements don't always cause problems. My parents' house had no problems after 50 years when we recently renovated the basement. But it also has extremely well-draining sandy soil and a concrete block foundation wall with open cavities. It depends on the conditions.

@multipotentialite 2 месяца назад

Don't you also need to have an air barrier around the joists when you use rigid foam?

@Borisvanderoost 2 месяца назад

How about insulating it from the exterior side? Wouldn't that be simpler if it were a new build?

@jakesaari7652 2 месяца назад

Love all the graphics and clear information

@kylejones4149 2 месяца назад

Inspector in my area makes us valor barrier even with the foam board behind the framing

@richpollock383 2 месяца назад

Can you comment on using Zypex concrete waterproofing. I understand it promotes crystal growth into the concrete, sealing it, the product reacts to water infiltration.

@Langhorstiness 2 месяца назад

Xypex is a liquid water crack sealer. It does not block transmission of air and/or water vapor. It would make no different for vapor moving through the concrete toward your vapor barrier.

@peterfroese8606 2 месяца назад

at 2:56 you talk about 'the right ratio' between the ridgid foam applied to the concrete wall vs the fiberous batts installed interior of that foam. I've read up on the ratios required for main floor walls, is this the similar ratio you are basis this off of, or is there a similar table where this can be looked up by climate zone? Thanks

@jamesroscoe7555 Месяц назад

The vapour barrier should be located where it will always be at a temperature above the dew point. Determine the worst case dew point for your climate for all seasons. The foam thickness to permeable insulation thickness ratio needs to be greater than the ratio of the dew point within the indoor - outdoor temperature delta. Note that the outdoor temperature below grade is different than above.

@elbuggo 2 месяца назад

Even more better IMO would be to install Pordrän or Isodrän on the outside basement wall!

@MrFredscrap 2 месяца назад

Couldnt you cast the basement wall with waterproof concrete mix (ie: materproof admixture)? that should address half of the problem with moisutre coming in from the outside.

@ASIRIDesigns 2 месяца назад

You can, but here's the thing... All concrete cracks. Cracks are pathways for water to enter via hydrostatic pressure. So a drained system is the only way to prevent bulk water from getting inside. As for the other capillary forces and interior vapor drive/air leakage, they need to be addressed accordingly.

@SharpRealEstateGroup 2 месяца назад

👍🏻👍🏻 thank you, very good info!

@frankrizzo2157 2 месяца назад

my unfinished old basement was leaky damp dried out quickly

@mynameIan Месяц назад

Please note that if the resin used on mineral wool is organic, mould will proliferate on that resin, conditions permitting.

@rogiervantilburg3440 2 месяца назад

Thanks for sharing!

@theok4712 2 месяца назад

There's technique for insulating basements with house wrap on the concrete block side first then studs, batt insulation and vapour barrier. What are you thoughts on this method?

@ASIRIDesigns 2 месяца назад

It's the same problem.

@blehssed 2 месяца назад

@ASIRIDesigns disagree, it's not a problem on a properly poured and damproofed foundation wall

@theok4712 2 месяца назад

@blehssed how about a block wall built in the 1970's. It's probably not damproofed properly.

@lulutileguy 2 месяца назад

what about off gassing?

@greatitbroke 2 месяца назад

If its in the building code you have to install it to pass the building permit inspections. So whats your answer to that?

@daijoubu4529 2 месяца назад

Rip it off after the inspector pass lol

@ASIRIDesigns 2 месяца назад

You can use a smart vapor retarder instead of polyethylene to allow for drying if conditions get wet. It's allowed by code.

@tealkerberus748 Месяц назад

If you put your rigid foam insulation on the outside of the concrete, you don't have to worry about what it's going to do if you ever have a house fire, and your concrete thermal mass is now inside your thermal envelope. Then, put some drainage around the outside of your house already - there's not excuse for having dirt against the foam or the concrete when you have so many options in gravel and slotted pipe to take the water away. After that, make sure there's an air gap between the concrete and the timber, and run a dehumidifier through this space. Obviously you still don't want any electrical outlets or other holes in the wall lining on these outside walls, but a small dehumidifier and a fan to keep the air circulating is cheap insurance against anything going wrong.

@AspRunescape Месяц назад

Ive always framed basement walls about an inch off the foundation, then insulated and vapour barriered the wall frame. It leaves enough space for the concrete to breathe behind the insulated wall. Ive never had a problem, but ive also never ripped a wall apart that ive done this way.

@marklundeberg7006 2 месяца назад

Why is soil at 100% humidity? Sounds like drainage issues.

@ASIRIDesigns 2 месяца назад

Believe it or not, even "dry" soils are somewhat damp! You almost never have bone-dry soils except in extreme climates. Also consider that there is substantially less volume of air in soils, so the small amount of air that is inbetween the tiny gaps of soil particles aren't able to store much moisture in the first place.

@marklundeberg7006 2 месяца назад

@@ASIRIDesigns Interesting, yes reading around I see that even very slightly damp soil can have quite high humidity like 90+%.

@marklundeberg7006 2 месяца назад

@@ASIRIDesigns Ok I just stuck a hygrometer into a hole in the bottom of my foundation... I'm in a dry climate and I have no drainage issues, it's apparently bone dry crushed rock down there yet 98% humidity... Hah! The basement walls are insulated and barriered in the way you discourage. Unfortunately they are fully finished too... So I can't easily get the hygrometer into the walls.

@iancormie9916 Месяц назад

Depends on the climate and nothing else. If you are in the south, where inside temperatures are below ambient ground temp then the vapor barrier must be outside or you must allow the wall to breath to the inside. If you. Are in Canada where the inside is always warmer than outside, then the vapor barrier must be inside. You must never however, put a vapor barrier on both sides of the wall.

@jeil5676 2 месяца назад

I dont think I have any type of vapour barrier on my basement walls. Doesnt seem to have been a problem yet. house built in 60's.

@harrywood8196 2 месяца назад

Ive been questioning this for many years. Concrete walls could sweat and therefore a plastic barrier would not let the insulated wall breathe behind the drywall

@ryans413 Месяц назад

If you house is probably vented this is not an issue because the inside of the home can breath and moisture won’t be an issue.

@dbdouglas 2 месяца назад

Put the framing a half inch or so away from the concrete walls. Put fiberglass insulation in, with paper-backing already on. Then stapled clear, plastic vapor-barrier to the framed walls - but only to the below grade height (of the outside dirt). 30 years & counting with zero problems.

@robertt9342 2 месяца назад

Wouldn’t that create a tone of air and moisture penetration?

@dbdouglas 2 месяца назад

@@robertt9342 In the summer, we have a little de-humidifier on, like we did even before finishing the basement. No problems here, knocking on wood!

@o2kala649 13 дней назад

Added advantage to Mineral wool is that mice hate it

@pcatful 2 месяца назад

Did you say rigid foam IS a class II vapor retarder or rigid foam WITH a class II vapor retarder? 2:35.

@ASIRIDesigns 2 месяца назад

Unfaced rigid foam itself IS a Class II vapor retarder

@thegrantdanielsband Месяц назад

What about house wrap first against the concrete wall then studs then insulation then vapor barrier Then drywall? House wrap sheds water one way but breathes the other way so needs to be installed just like you would on the sheathing on the main floors Staple it to the plates at the top first to hold it up 🙂

@ASIRIDesigns Месяц назад

@@thegrantdanielsband No. Watch my latest Q&A where I address this: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-9yoGFX_1gjQ.htmlfeature=shared

@slayer45140 23 дня назад

Learn from Norway. No vapour barrier if more then a half of walls are UNDERGROUND. Insulate from outside with the XPS.

@evalangley3985 2 месяца назад

I am right now searching how to limit radon getting inside my basement from the joint of my basement slab and basement walls. Those foam panels are unfortunately a chimney letting radon inside my basement. I don't know how to tackle the problem.

@ASIRIDesigns 2 месяца назад

To address radon you need to do two things: Keep the radon out by ensuring that you're providing an adequate air barrier at the pressure boundary between the foundation and the conditioned space, and a means of radon removal, which is usually a passive or active subslab depressurization system. You don't want your home to be negatively pressurized, otherwise you're sucking soil gasses into the house. The house should be pressure balanced, or slightly positively pressurized in this case.

@clementmartinez121 25 дней назад

Instead of a wall how about curtains? Deaden sounds, washable, and simple to inspect for leaks.

@sorenjensen3863 Месяц назад

Or, do all foundations with icf

@vancegosselin 2 месяца назад

Mold food, yum

@ryans413 Месяц назад

Wow hang on you are getting off topic here a bit. It’s not just basements a vapour barrier is installed on all outside walls it stops condensation but also helps keep hot and cold air on the outside of the home. It’s not just used in basements but in all outside walls on every floor of the house including ceilings that cover attic spaces. If you are developing mold your house as an air flow issue. If your house ain’t breathing correctly mold will grow. It’s important to make sure the attic is vented properly you have to have soffit vents and roof vents the furnace needs to have a proper air return in all rooms of the house and filters need to be changed periodically. If your growing mold it’s not because of the vapour barrier.

@frankrizzo5958 2 месяца назад

Spray foam all the concrete in 2-3 inches of closed cell 2 pound foam and spray foam the rim joist areas as well

@blehssed 2 месяца назад

There's supposed to be an air barrier placed on the concrete prior to insulation. Arguably, the only time this may be correct would be when installing on freshly poured concrete.

@hoildayfish5032 Месяц назад

I don’t do building or anything connected, cool vid but like why did i even watch it XD

@johnq2068 2 месяца назад

That’s what I did, all of it

@ickster23 2 месяца назад

Avoid basements and crawl spaces of you can...

@adamdawidziuk3267 Месяц назад

As a European it's amazing to see how you heroically fight problems that you yourselves have created. Water bariers/insulation shall be done on the outside, yet I constantly see highly praised new constructions where the same errors are repeated over and over again. You pour concrete into the ground with soil on one side and basement on the other. Seriously ? And then heroically fight problems created by that "design". Frankly I dont know what to call it, some kind of mass -blindness ? Builders' conspiracy to make things bad by design so someone will have to go back and fix it forever ? Hard to say, but funny to watch nontheless. On that note I agree with your observations about this whole internal insulation thing - but this should be done exclusively only when there are no other options. Certainly not with new developments. Please, if you have the power, fix it! :)

@glennhiggs11 2 месяца назад

HRV!!!!!

@bwillan 2 месяца назад

If your foundation was built with ICFs you won't have this problem. I am surprised that ICFs are not more commonly used for foundations.

@robertalkemade989 2 месяца назад

ridgid foam

@elcrypto3623 2 месяца назад

House wrap with writing facing concrete,then framing,insulation and vapour barrier..standard practice in Canada.

@ASIRIDesigns 2 месяца назад

@@elcrypto3623 This approach is wrong for the very reasons outlined in the video. Vapor barriers trap moisture in the framed cavity... Moisture can and will get inside, either from interior air leakage, inwardly driven vapor diffusing out of the concrete, or from bulk water leaks. That moisure must have the ability to dry out of the moisture sensitive framing.

@hotfudgemoney 2 месяца назад

Love this channel

@francoisbouvier7861 2 месяца назад

Wo, wo. That one picture shows the back side of a shower/ tub situation. That's always a no no.

@Vertilgen 2 месяца назад

Video shows cold going straight through insulation to reach the vapor barrier. Just use better insulation!

@ASIRIDesigns 2 месяца назад

"Cold" doesn't come inside, heat flow is from warm to cold. You need the benefits of an air barrier and vapor retarder in the insulation specs, or find another means of controlling condensation.

@richvanorden7026 12 дней назад

Vapor barrier, is just that. Not going to help with moisture.

@allantulli5546 2 месяца назад

The proper approach is to seal the outside of the basement not the inside.

@powershop1903 Месяц назад

I did my basement and it's just fine.

@joe-hp4nk 2 месяца назад

What did he say?

@dragandrag24 Месяц назад

Installing the barrier on the interior is the badest ideea a constructor can make. The insolation should be installed on the exterior to keep the fundation dry and to avoid water to penetrate inside.

@rswow 2 месяца назад

Seems like critical info. Please provide a version without the incessant music, else I'm driven away and missing out.

@acreguy3156 2 месяца назад

Agreed. So many YT video producers feel the need to add a background music track. It serves no purpose but to make the producer feel like a real Hollywood pro. The irony is, a REAL pros would NOT use music in such a video. Otherwise, great video!!

@user-pu2ho4ip3d Месяц назад

Everybody's an expert.

@MrItalianfighter1 Месяц назад

We wear rain coats on the exterior of our body, not on the inside. We should be insulating, water, air sealing the exterior of the foundations as well as the exterior of the house. To be honest, we shouldn't build our homes out of anything like papers or wood.

@jetterbenne2578 2 месяца назад

Finished basements are not a good idea to begin with. There is this obsession of having a basement, finishing it and using it as a living space. it's just a ticking time bomb for disaster.

@adamford518 2 месяца назад

Not everyone has the luxury. Homes are expensive and space is limited so people have to make the best with what they have. Basements are common because the area is dug out for the foundation, so may as well make the best of unoptimal space.

@jetterbenne2578 2 месяца назад

@@adamford518 Sure it is cheaper but in most countries basements are for the pipes, storing wines, and roots.

@deletesoon70 2 месяца назад

Given this overheated real estate racket we are dealing with, maximizing utility and minimizing waste has been forced into people. For some reason.

@13Mappy 2 месяца назад

Completely disagree.

@HuFlungDung2 2 месяца назад

I agree completely. A basement is just waiting for a flood event to happen, sooner or later. Naked concrete is easily washed up after a flood. A basement serves as easy access to the plumbing and heating systems,which inevitably fail and need repairs. That being said, my basement walls were styrofoam concrete forms, inside and out, so it can be heated when needed.

@durwardsaar6000 2 месяца назад

I'd tell you to go back to trade school.

@krakenwoodfloorservicemcma5975 Месяц назад

rigid foam doesnt work either. dont insulate period - speaking from experience, .. closed cell foam might work, but not sure. rigid foam works well on the outside of the foundation though.