How To Install Moisture Barrier in Crawl Space

Mold, Mildew, Termites.. A moisture barrier helps protect your crawl space from all these things. It also helps help your home warmer and cooler! Simple to install with just a few tools. Good project for the Do It Yourself Homeowner
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Moisture Barrier, crawl space, waterproofing, tips, How to install moisture barrier, 6 mil plastic moisture barrier, encapsulation, Apple Drains, French Drain, sump pump, check valve

[@10AntsTapDancing]

Very helpful demo, it's given me the confidence to do my own house. Had quotes to that job that made my eyes water lol.

[@kerrygoodwin4071]

If you stop the outside issues with your crawl space, your 6 mil black would not deteriorate. Problems usually aren't the material that you use under your home. The problem usually is outside the home.KEEP THE WATER AWAY.

[@jedi982]

Videos like this are why I love KZbin

[@beckymash12]

Dude. You just saved me so much time and frustration just by advising to do the cutting outside. I was about to have a very bad day. :p

[@behappy2435]

Very helpful. Thank you!

[@gregblair7144]

Installing moisture barrier under mobile homes is a little bit more complicated because you have very little crawl space and more cuts. would love to see some videos on the best way to install moisture barriers under mobile homes.

[@skorpyog9462]

This is so much better than a full encapsulation and thousands of dollars cheaper. I had to do this style for my crawl space to pass inspection for a quick sale.

[@victoriaseymour1306]

you are the best! thank you for sharing your knowledge. much love and appreciation

[@willfeetham4803]

Thank you for sharing your knowledge! This is super helpful, I appreciate your generosity so much!

[@cattigereyes1]

I am glad you explained encapsulated spaces being different. Code says the barrier is thicker attached to walls and columns by six inches, overlays 6 inches per over lap of the plastic and is sealed at all joints. The interior walls would need to be insulated with hard installation I believe.

[@michaelvanderveerdebondt3361]

Exactly what I needed to know. Thanks

[@mst0786]

Great video & content...Thank you!

[@mcgurganka]

Very helpful. Thank you.

[@2aEdu]

Thanks for the video.

[@dizzylizardproductions]

Informative video .. Thank you

[@lanam.thompson2069]

Yes. I just decided to do this. And inwouldve have to take the whole roll in with me.

[@javierledezmaruiz]

Very helpful video..

[@Roc-Righteous]

Awesome video..I just did my little house..

[@zenonrabenda8246]

I was worried but now I should not have any problem doing it myself.

[@tobyswope6875]

Thanks that was helpful

[@rayurlich]

Thanks Chuck!

[@chi8319]

Thx for the video. What pins do you use?

[@SYLperc]

If that's a tight crawl, you should see mine. About to move to an old house with an 18" crawl. Im putting in a moisture barrier, dehumidifier, and sump. That's going to be a fun couple of days 😅

[@SomeIsBest]

Just had the old cast iron drain pipe fail, plus no gutters = toms of rain water build up and the sump fsiled.. $2000 to replace all the plumbing tomorrow. Just bought a new one. They want all the water out before they replace the pipes. Probably gonna need to clean and replace all this myself after the plumbing work. It rained yesterday and froze last night, so I'm in limbo.

[@kerrygoodwin4071]

Wow 18" sux. Is there a specific reason for the sump? Sumps are the last resort. DEFER THE WATER! IF POSSIBLE!

[@mtnton1]

Hey Chuck, thank you for all of your videos. I do now believe that I can do my crawl space encapsulation myself. Thanks to you. I live in Montana and I have a 2,000 square foot crawl space with about 4'5" of head room. I have standing water in some places (not much). I'm going to put in drain tiles and a sump pump. My home does not have a forced air furnace. We have propane burning heaters (vented to outside) and a wood stove. I was going to get a dehumidifier and completely encapsulate the crawlspace (cutting off all access to outside). Then maybe put in a floor vent to exchange air to the single story home. Is this a bad idea considering I don't have a way to force air in and out of the crawlspace? What would you do?

[@voip4life]

Thanks for the video - what's the name of the song at the end of your video??

[@rickydrawdy3630]

Dam, that guy is serious! He vapor barriered himself ! 😂😂😂

[@jamesholloway545]

That's a easy crawl

[@davemarleymusic9153]

Not even CLOSE to tight. I agree

[@davemarleymusic9153]

If you can lay on your side and still have room, it's a walk in the park. This is not tight at all.

[@Darci3333]

Do you need to put lime down before putting the heavy plastic down

[@Zeahappy]

great video!

[@jonhall7188]

After seeing my 6 mil vapor barrier dwindle to nothing, I would recommend at least a 12 mil or more.

[@kerrygoodwin4071]

How did it dwindle down to nothing???

[@kerrygoodwin4071]

Why 12 mil??

[@sirshootsalott]

@@kerrygoodwin4071 deteriorates over time If it’s too wet

[@kerrygoodwin4071]

If it's to wet under your house, then you have more issues than a certain mil of thickness.

[@sirshootsalott]

@@kerrygoodwin4071 some people live on a slope and water gets into their house through cracks in the foundation, your welcome

[@automategames]

the secret is a lack of closterphobia and no fear of rat poo

[@shreddin2477]

How often?

[@jamesbradley6772]

I'm literally stuck looking all over, hopefully someone can help me. My crawlspace the barrier is attached to the joists. Can I just use flashing tape at the seams and Rehang?

[@michaeldonovan7522]

Hi chuck, is it necessary to put foam insulation board on the walls or can I just use the plastic up the walls right over the concrete? I am removing the overhead insulation from in between the joists so there will be no insulation in the crawlspace at all. I am in Florida to add some context. Thanks

[@tatianajefferson3088]

What did you end up doing?

[@mrpalacios88]

Ball park estimate what does a job cost?

[@nastyab8003]

I dream of flat crawl spaces....

[@TC-to9jh]

👍👍

[@nsmcastillo326]

Can I staple the vapor barrier up on the beam, floor joist in the crawl space instead of laying it on the ground?

[@senjo31]

No

[@chuckvenrick]

Just did mine today but didn’t use the wires to hold it down. Will this be a problem in the long run. The old vapor barrier got water on top cause it would flood really easy and it was 30 years old. Put a new sump in last week but do I need the wire tie downs?

[@kerrygoodwin4071]

No! Can you defer the water away from the house?

[@JustinCrediblename]

that crawlspace has WAY more space than mine...you can actually CRAWL in that one

[@brandonfontaine285]

My crawlspace is face to the dirt on your stomach...

[@wujkmusic]

that’s a lot bigger than my crawl space, you guys made it look more harder than it should, what my father and I did was wrap up the Columns and roll out some 8 foot wraps.

[@mariacarrasquillo5693]

will this help older cold home. my sunroom and living room gets cold. winter. i have it partially the front not cover would this really. help.sunroom need newer window.

[@fanuvgod1]

maria carrasquillo this won't help with insulation so it won't make a difference with your cold rooms

[@mariacarrasquillo5693]

It help with moisture

[@fanuvgod1]

maria carrasquillo correct

[@philliptinnell3790]

Encapsulating the crawl space may work for you.

[@eugeniewaldteufel7915]

So there is is a moisture barrier and then encapsulation. What criteria for one or the other? I was hoping to reduce condensation on my windows.

[@d.r.cuevas4214]

Encapsulation is when you seal off all your crawl space vents besides one (for radon gas purposes) you can put a crawl space fan in that one vent to EXIT inside air. Then your vapor barrier start on your crawl space walls with a 3 or 4 inch termite gap below your sill plate (depending on your code) VB runs down wall towards middle of crawl all way around it has to be fastened to wall then you come over with VB covering ground all seams have to be overlapped and taped. Install dehumidifier to control moisture level, you can run drain straight to sump pump or a condensation pump that needs to exit crawl

[@kerrygoodwin4071]

2 different things. Sort of same characteristics, but definitely not the same.

[@sunnyd2000]

I only have 1220 sq ft and need to know what type of pins those are. I want to do my moisture barrier myself. And I also have 6 mil.

[@adamstanley3813]

Sunny D They are landscaping pins, you can get them at lowes or Home Depot

[@kerrygoodwin4071]

Ymdo you have 6 mil already down, or do you have 6 mil available. AND IS IT CLEAR OR BLACK?

[@abelbatz]

Watching on 2022

[@nuttybuddy41]

how do you hold vapor barrier down if ground is hard ,like with clay

[@Nativtexan2]

Still use pins. It's going to lay down on its own, you just need to keep the ends in place.

[@kerrygoodwin4071]

The ground has nothing to do with holding it down.

[@linusx77]

Do you always want to remove old barrier or can you just overlap them?

[@josephwatts7484]

LinusX as long as their isn’t any debris on the old barrier you can lay right over it

[@kerrygoodwin4071]

Remove old barrier. You obviously have an issue or this question wouldn't been asked. Can't cover up problems. You just make them worse.

[@toddmarten1364]

So my crawlspace has been flooding horribly for years apparently. We have just excavated and diverted a river (literally) away from our home. Installed French drain and weeping tile. The builder or previous homeowner put down poly but there was literally 6-10 inches of water underneath the poly. So I have removed it all. The dirt is completely saturated down there still. Question, should I allow it to dry out a little before applying a new layer of thicker poly? Hope this makes sense.

[@Erklzanderz]

The proper way to handle this situation would be to dig a trench around the inside perimeter of the crawlspace, backfill with drainage material like gravel, and finally install a sump pump setup to remove the water as it leaches from the surrounding soil. This would reduce or eliminate the moisture problem and avoid future problems like mold and other structural damage. I know its a bit late for an answer for you, but now you know.

[@clavicus]

what mil plastic did you use?

[@brianbarr4955]

CKH 6mil

[@chrischandler3041]

How long will the plastic last generally?

[@jkutis9295]

Depends on the material. The garbage bag stuff they're using there doesn't even look 6 mil, I'd guess 7-8 years tops if there's no traffic. More mils, thicker plastic, longer life.

[@jkutis9295]

@Frederick Murray And your opinion is 100% correct! :)

[@BrettTracyRealtor]

My opinion 20 mil for capsukation is too rigid, 20 mil is two 10 mil pieces together with reinforcded type mesh netting, plus someof those vapor barriers off gas ans it smells like cat pee lol

[@Cris-ss8tb]

Does forget your keys !

[@imcruisin88]

I like all your videos so far but I completely disagree with this video if you are encapsulating. There are several things that you did not do that will allow moisture to rise up into the floor joists. You have to completely seal the plastic fabric to the walls and anything sticking out of the ground such as piers cannot be folded over, it must be sealed. Also using pins punches holes in the plastic fabric and allows moisture and water through. The way you did it may last several years but the mold underneath will spread and the fabric will leak.

[@johng2880]

He clearly states that he is installing a moisture barrier, not encapsulating. They are two different things.

[@kerrygoodwin4071]

Yeap, he said a MOISTURE BARRIER, not encapsulation.

[@joeroganjosh9333]

He said 6mm plastic ? That’s 0.2 or 15/64 of an inch. No way is his plastic that thick.

[@daves3819]

It's 6 mil (6 - one thousandth of an inch or 0.15 mm)

[@ryancooper956]

You idiot, haha

[@kerrygoodwin4071]

The plastic is not the issue, seriously!