4 Pitfalls Of Spray Foam Insulation To Avoid

[@felixcat9318]

I have never seen such an interesting and informative tutorial on what to look for when you have property spray foam insulated and sealed. The invaluable advice contained in this video informs and empowers customers whom otherwise would be completely in the dark about this subject. Thank you for your care, consideration and professionalism in helping both the contractors and customers. Subscribed.

[@SprayJones]

Glad it was helpful!

[@chrisgoode1580]

Love the content.... A simple tip foamer to foamer. When spraying under a slab on gravel substrate it always helps to flash coat a light layer 1/4 to 1/2 inch on a large area, Then let set up to walk on and then apply second coat to complete final thickness. Helps stop foam from seeping into gravel and helps keep More consistent thickness. Patients is key while applying spray foam. 👌

[@p.s8950]

Thank you So Much for the straight fact, void of heavy metal background music or attempts at stand-up comedy. Thanks.

[@SprayJones]

You are welcome. Thanks for watching, we have other vids that ma be helpful on our YT channel.

[@isitmondayet]

Well... I don't know, what I don't know... but your video seemed really good, INCREDIBLY straight forward. Thanks for sharing!!

[@T.E.P..]

as a new sub .. it's been great to see how utube has been sending earlier vids into the feed. Super job on all of these man. Incredible.

[@SprayJones]

Thanks for subbing

[@undergroundinnovations1645]

What is the blue stuff being sprayed on the bottom plates and headers?

[@gweedomurray9923]

Beautiful, to the point with no wasted words.

[@ronwalsh]

We have been in contact with a local installer, and we are going to do our attic space since our house has almost no insulation up there. We were going to go with the open cell, but after seeing this video, I need to call the guy and get a new quote with the closed cell. Thanks for providing this great video.

[@SprayJones]

Do your home work! Glad we can help.

[@rlafleur27]

I’ve tried reading through the comments but there are so many. I’m running into a problem. I’m getting very mixed answers. I live in Louisiana, south US. You seem very knowledgeable and would like your expertise. I have people telling me to wrap my barndominium with something like tyvek then spray open cell insulation. Then I have some saying no wrap because it causing more sweating. Could you please give me your expert opinion on this? This is a wood frame barn style with metal sheet siding. Thanks.

[@rlafleur27]

I finally found another one of your videos talking about wraps with open cell. So my questions is which way I should go. Contractor is saying open cell on walls and close cell on roof and doesn’t want to wrap my house.

[@SprayJones]

I have a video about spraying to Tyvek. I suggest checking out my YT channel and watching vids that will help bring up your understanding on these subjects.

[@kevinlockwood3388]

Yes, I enjoyed learning about the different types. Thanks.

[@luism.raposo5138]

Well explained my man. I wish I was able to work with someone like yourself, when I was younger. But boy, where these old timers cranky in there professional way back then. I was taught the hard right way though. I'm glad I was because now I show good and professional work and that matters because that's more money in your pocket. All because of these good cranky old fellas. Good job and God bless.

[@SprayJones]

I appreciate that

[@jghvac80]

Hey mike! Just wanted to stay thanks for all these amazing videos. Getting ready to have my house done and I’m so glad I’ve learned all the pitfalls before hand! I sure wish you guys were here in central va…. We could use hood pros like you around here! I found one guy who sounds like he was a professional, but he was 3 months out, so I had to move on. Thankfully I found your channel and now I know what to look for!

[@rdking8001]

What is the purple?

[@coltonreavis4068]

Certain open cell polyurethane foam brands are considered vapor barriers when sprayed to a certain thickness typically 3.5”

[@SprayJones]

I have videos on all of that. The thickness depends on the substrates.

[@markstorhaug9989]

If a guy was to spray foam the under side of a roof deck in a garage and keep the ceiling open (no sheetrock or tin ceiling) should the foam be painted?

[@SprayJones]

I would. Looks a lot better.

[@JB-jk3ow]

What are the health concerns long term with having this in your home with off gassing? Also, if sprayed under your roof, how would you ever know if your roof is leaking? I'm deciding between foam and wool blocking for insulation.

[@SprayJones]

Go to my playlist "spray foam 101" watch more videos most of your questions are answered there.

[@casperaudi7476]

Like the video but scared to do it because I hear of a lot of remarks about the smell and I don’t want to ruin my house does this stuff smell

[@SprayJones]

Keep watching the videos. Fear leaves with education.

[@j.markkrzystofiak9907]

Great info and no BS presentation. Anyone considering spray foam should watch this.

[@SprayJones]

Thank you. That' what I do, no BS.

[@ppns2726]

How long does it take for the chemicals to evaporate out. Seems that would be the fifth pitfall if the chemicals aren't mixed correctly

[@SprayJones]

On-ratio mixed chemicals are rated to zero VOC is under 24 hours. This means re-occupancy within that time.

[@setofirons]

What are the long term health issues. I see your guys wearing those hazmat suits should we be worried about off gassing as the product heats up?

[@Trohawkk]

don't worry

[@SprayJones]

Go watch our vid on "I don't want stinking foam" You live with plastics every day of your life...

[@thomasschafer7268]

Your in Plastik. Living in a plasticbox like a goldfish. And in its burns. The Hell.

[@jfbeam]

They're wearing PPE because you don't want to breath the unexpanded liquid! Yes, this stuff will off-gas some, but it shouldn't be like a drum of gasoline in the room. (it should cure and be done. however, just like anything else it can be done wrong.)

[@nickking1510]

In my opinion if it contains any form of isocyanate orMDI like they do on cans of consumers spray foam in tiny lettering I would and could not use it . Ask me why I restored a older speed boat outside I injected 2 can of building box store purchased cans of consumer polyurethane expandable foam while wearing an n95 carbon filtered fitted respirator and sealed goggles .I had 6 1/2 inch holes drilled in the sub floor of my 16 foot boat used the supplied plastic straws the application took less than 5 min on the last hole I felt like I could breath jumped out of the boat my eyes were blood shot I was excreting huge amounts of mucus’s I was sick for several days and that was 2017 still have an on going cough.I knew the foam contained MDI aka isocyanates that’s why I wore the paint n95 and I was outside in a breeze above the sides of the boat which is about 3 feet deep . Imagine if some one used that spray in I babies bed room . Many friends of mine had to quit the auto body trade because of isocyanates and its cumulative so one you reach your threshold you can go near the stuff .As a hobby I restore car boats and trucks even sanding or grinding the clear coat releases small amounts of isocyanate so you have to be careful .A good source of info on working with isocyanate hardener was on line by dept of labour for various states under auto body and truck bedliners workers and painters

[@aceadman]

This is a very good and useful video. I’m in the U.S. and I just had a crawlspace done with closed cell. I think they did a decent job but I wish i’d seen this first, so I was more informed when they did it. Thank you for making and posting it. If I was in Saskatchewan, I’d have called you for SURE. 😊👍👍

[@SprayJones]

Glad it was helpful!

[@jjustice7429]

@@SprayJones Can you take down the insulation in an existing crawlspace and have closed cell sprayed in it's place?

[@TesseraCraft]

thanks for making the video. I am about to foam in a 100 square foot room, and this was the first video that recommended starting in the corners

[@SprayJones]

Glad I could help!

[@mikeromanage3696]

Spray foam was the best decision that we made during renovating of our house. The basement was the biggest difference. The attic was great as well but it was more of an upgrade from the 60 year old insulation. The toughest part was to find the right company. Research. Research. Research.

[@SprayJones]

Thank you Mike.

[@scottschmittmusic]

So I shouldn't use 1/2" for my crawl space under my addition?

[@RLNTEX]

Thank you for making this video. I have heard that smell is sometimes a problem and if it's too bad it can destroy a new house, is that still an issue these days that we need to watch for?

[@SprayJones]

Go watch "I don't want stinking foam"

[@imdeplorable2241]

Wow! This is a great video. I have never seen the purple product used before. And, they sprayed it onto the gravel base. I would love to see a section diagram showing the dimensions of the foam, rebar, and concrete. Great explanation and video. Thanks.

[@SprayJones]

Please go watch our video on Spray foam for in ground. Second most recent upload.

[@chrisalister2297]

@8:13 jack and header installed wrong?

[@f.demascio1857]

What about the off gassing? Has that been addressed?

[@SprayJones]

Watch our video "I don't want stinking foam".

[@syclone1012]

Is that mold he is spraying over at 2:45 ?

[@benhellerman3864]

can you spray closed 2" of closed cell on walls then spray open cell on top to fill to edge of stud?

[@SprayJones]

I guess you could. Why? Watch my thermal bridging video.

[@benhellerman3864]

@@SprayJones I had a client ask me one time on a job he was remodeling his house,I told he had to ask the company that was doing the spraying. He never told me what the company said,that's why I asked you

[@SprayJones]

@@benhellerman3864 All good. There is not much reason to do this. The studs are not much of a problem like ppl think.

[@waltofalltrades6817]

Sooo, I'm assuming closed cell could be used on the outside of a basement wall on new construction? Insulation + vapor barrier in one and the fact it doesn't come off easily tells me yes, but I don't know.

[@SprayJones]

Correct. My channel has more videos and info on that. Go take a look.

[@waltofalltrades6817]

@@SprayJones I will, thanks.

[@martylost167]

Does spray foam void the warranty on tin? I found this in a building supplier video last night and was going to start watching yours tonight.

[@SprayJones]

That is a broad statement. "Void warranty" so we have to look at what, why, who, and under how much for how long....in other words.... BS!

[@Bottlecap21]

what is that blue foam or caulking that was being sprayed with the paint machine??? Please!!!

[@SprayJones]

Liquid air seal.

[@edwardogorman289]

Hi guys I live in Ireland and there is a problem with using spray foam insulation ,insurance and mortgage companies will not provide any service if it is used, because they say that the structure cannot be inspected, plumbing & electrical is obscured and difficult to check. We don't have termites but we do have woodworm they are tiny but love to eat everything for the roofing to the legs on your bed! So we're using the rolls of fiberglass or cutting the preformed sheets and then fitting them by hand. Ironically I can use it for my garden shed and on my freestanding garage because they are non-residential.

[@SprayJones]

Inspection argument is stupid and ignorant. Whole steel beams in commercial building are in cased in concrete for fire protection... so how do they inspect the steel? Same principals.

[@symetz]

Is there anything that can be done with all the leftover that is cut off from the walls once it is dry?

[@SprayJones]

No. It is cured material. That is why we try to keep waste to a low level, as much is functionally possible.

[@pcno2832]

@@SprayJones Could it be re-used as soundproofing in interior walls, perhaps in combination with ground-up leftover drywall?

[@SprayJones]

@@pcno2832 Yikes! Or shredded old underwear.... that's a joke.. Anything is possible. WHo would do that?

[@repalmore]

What was that purple single component that was being sprayed on the cracks. I would rather put that through my sprayer than run through a couple dozen caulking tubes. For checking foam depth I made what I call a pokey thingy. Arrow shaft with an adapter pressed in so a sharpened piano wire from a hobby shop could be set it. There was a set screw so the depth of the foam would be at the adapter(piano wire would plunge full depth). Great for an installer to keep in the other hand while spraying. What foam was that purple foam? I love NCFI antimicrobial foam. It lays down like a 3 lb foam and you still get 4k+ bf out of a 1k lb kit.

[@SprayJones]

The single component is Eco Seal from Knauf. You will have to get it from a dealer. We get ours from Minneapolis.

[@rawbacon]

I don't know what the numbers are but my guess is that the closed cell foam adds quite a bit of structural strength.

[@SprayJones]

We have a video on all that. Go to videos and you will see it on "Structural Strength".

[@kevinwhitcomb8986]

Thank you for putting out this information. It's difficult to know who to listen to.

[@SprayJones]

You're welcome

[@VPOFIT]

Thanks a lot for the great info. It was very helpful. I have an 8x8 shed that we are converting into a small workshop and have been researching an insulation solution. I like the idea of foam over something like Rockwool bats. The problem for me is that the job is probably too small for a contractor and will have to DIY it.

[@SprayJones]

No spraying over batts! Must be a solid surface with adhesion to the substrate.

[@atmosrepair]

@@SprayJones I think he meant over like, he prefers spray instead of batt.

[@SprayJones]

@@atmosrepair Yes he did. I read too fast.

[@cro-magoutdoors2897]

What was the product used at the 8:35 mark fill gaps around the windows and around the sill plate?

[@margaretpatterson5530]

They were many cowboys who added spray fome to houses but they are as many cowboys who say they can take it off. How do you find a good company that will do the job of removing the spray foam. We have it and it is open spray fome but are findind it hard to find a good company.

[@WaitWhat-jy9ck]

Thanks for the great information. I've got a detached, concrete block RV garage and have to do some insulation and needed this info.

[@SprayJones]

Glad it was helpful!

[@mikekeyser7870]

which should I use for a school bus conversion. I'm assuming the closed cell.

[@SprayJones]

Correct.

[@zona7a2]

I'm been doing spray foam for 16 years I'm going to tell you what the problem is. A lot of times is lack of training,lazy people,pushy bosses. And the biggest problem is that a lot of companies don't care about quality they just want you to go to the job and get it done. Also a lot of them like to pay guys by square footage so the guys don't really care if is being sprayed correctly or if the foam is good or anything else they just want to spray a lot of foam so they can get paid a lot. Plain and Simple. #facts

[@SprayJones]

Oscar you are 100% correct. Our sprayers are paid by the hr. They are held accountable for what the do. We are a team, the management sets the goals (realistic) and the field staff have to execute. Thank you for your words.

[@zona7a2]

@@SprayJones i like that it sounds like I would like to work for you brother. God bless

[@xXxsplahxXx]

I get paid by square footage. Spray fast sometimes more than a set a day almost 2 and that is not an excuse to leave the job shitty with experience comes speed and a job well done

[@zona7a2]

@@xXxsplahxXx good for you

[@The_Real_Ozmerican]

This is why I pay salaries above the hourly rates on overtime. Then the incentive is to do it quickly and go home, but to do it correctly or you'll be fired.

[@khedsz1976]

I am a bit confused. You use the term open and closed cell foam. My assumption is that closed cell foam is an application in walls and ceilings where you are unable to open up the walls. In my case I have an old lath and plaster home and tearing down the walls would be a huge cost. However I cannot look to see if the surface inside is clean and dry. What do you mean by closed cell? Thanks

[@SprayJones]

Watch the video I made on "what is open cell foam"

[@grumpy1962R]

I’m looking for a reputable spray foam contractor near rice lake Wisconsin

[@SprayJones]

Ok, Go to my YT channel and watch the playtlist "how not to be cheated when getting SPF"

[@atmosrepair]

Hey check out Kings Crown Insulation. They're located in MN but can probably help you out

[@MavericksYouTube]

Explained very well. Thanks.

[@jaredcolahan759]

Can you help on the interior of a van? My concern is condensation. Thank you for the info.

[@SprayJones]

Yes, we do those from time to time. Spend more time cleaning than we do spraying.

[@danditiello4846]

Can you respray an area if your short on depth and seal cracks after an install that need some cut out?

[@SprayJones]

Yes.

[@porkyswelding]

i don't know why i'm watching this but it's a good video. well done.

[@SprayJones]

Glad you enjoyed it!

[@Sassygirl8323340]

What is the blue stuff you sprayed in between seams of window headers etc

[@LifeContractor]

what are you product are you spraying for seal the bottom plate and the top plates

[@incognitotorpedo42]

My friend had his house foamed, and the foamers really messed something up. They burned the house to the ground. This was some kind of foam that gives off heat as it cures, and they sprayed it too thick or something.

[@SprayJones]

That is all closed cell foam. You friend hired idiots. Probably gave him a "deal".

[@christophergruenwald5054]

All spray foam has an exothermic reaction while curing out. Some foams are hotter than others. Some will burn down the house if you apply it entirely to thick in one pass. Some closed cell foams have a maximum lift of 2 inches. Those are the worst to work with and have the least amount of safety cushion when spray into tight areas. I like foams that are capable of a 4 inch lift minimum. Then you have a safety margin when spraying 3 inch lifts. Even better when the foam is capable of a 3.5 + 3.5 back to back for a total of 7 max before having to wait for the foam to cool.

[@snelsonmichael1449]

Opencell i sure and it was aprayed too thick at one pass.

[@daviddodd7128]

Thank You for such a courteous help, I can proceed with confidence, product knowledge & Prep.... That is Huge .... Seriously Thank You

[@SprayJones]

Glad it was helpful!

[@aljabs6886]

Hello and thank you for your very informative videos. I found after looking for information about why my spray foam installs like it does. So I'm hoping it OK to ask a questions? I had spray foam sprayed under my house wooden floor boards. That looks like its to thick and was a rushed job. Sprayed everywhere all over my wires buried now. It has lots of holes, cracking and looks like a term a read pork crackle. My house barts before and not cold but now I have this icy refrigeration breeze come through my house when temperature drops in winter temperature. Also since install I'm having asthma triggers in my house?? Was spray in a colder temp than recommended I hope you can share thing to help thank you again for your time Al

[@jackdenenberg1788]

Not sure if this has been answered after scanning the comments, but I just saw the foam in the areas of our attic between the conditioned and unconditioned spaces is free standing between the studs.. There is no OSB backing as they used cardboard which then falls off exposing the foam on both sides between the studs. Is this considered an acceptable practice (for a Florida home) to build a "wall between the conditioned space and the unconditioned spaces over the back porch and garage?

[@SprayJones]

A solid wall is in fact better, more to adhere to. We have had people use cardboard in areas where it will not rot away to be a temporary backer for getting SPF in place.

[@jerrykinnin7941]

My question is should we run electric/cable wires etc. thru conduit. For ease of adding future electric tech.

[@SprayJones]

Sure.

[@JasonW.]

Yes, please. I'm dealing with sprayed in electrical, plumbing, tv rg6, and cat 5. All of this in an area that should not have been filled.

[@AJ-pj2nx]

What do you make of the situation over in the UK? Banks not issuing mortgages on foamed houses. Why they having such a hard time there?

[@SprayJones]

Fear, lack of understanding. Need standards, tech data and education otherwise the imbeciles will rule.

[@Daniel2w3]

Is sprayfoam allowed in Los Angeles??

[@SprayJones]

I cannot say for certain since I don't have any dealings with that area for any reason. My initial guess is 98% yes. They will just be picky on what qualifies.

[@pcno2832]

I'd think it would help a lot in quakeproofing a building.

[@SprayJones]

@@pcno2832 It would.

[@bearlissa]

If you have termites, it will be very difficult to find them or the damage with foam.

[@SprayJones]

I will be doing a video on termites and ants with SPF. There is quite a storm brewing in the insurance and building products world. Stay connected.

[@ericstefko4852]

great video, what causes the off gassing issue that make an awful smell, how can you make sure that you don't have this happen ?

[@SprayJones]

Watch our video "I don't want stinking foam".

[@ericstefko4852]

@@SprayJones thank you !!

[@SaiaArt]

I can add a 5th pitfall. With full depth, it is impossible to later snake a romex to install i.e. a sconce light, or expand a 2 gang switch box to a 3 gang box and add a ceiling fan. The same problems come up with plumbing & venting. For instance if you want to relocate the laundry connections from basement level to 1st floor or 2nd floor laundry.... you cannot do it without tearing out a huge amount of dry wall, insulation, etc. Someone might argue that they designed the home the way the want it. Well so what? 25 years from now when you’ve sold it, somebody else wants to make some changes such as added recessed lighting. What would have been a couple hundred dollars is now a thousand dollars or more.... and the worst of it is, they don’t figure that out until the walls are all torn apart, leaving them feeling held hostage by the issue. The stuff that is just a couple inches thick is fine. The full cavity foam is only going to cause problems down the road. I cannot advise anyone use it, and it should actually be prohibited in my opinion. It would be akin to suggesting people recess their electrical panel into a basement wall niche & cementing it in place... it does not allow for later modification, maintenance, etc. Once upon a time, CPVC plumbing was the recommended method too, don’t forget. FULL cavity is NOT the way to go. Don’t ever do it. Do the partial method only.

[@christophergruenwald5054]

I’m not recommending full cavity filled, but I am curious what plumbing are you running through an exterior wall anyway? If you are moving plumbing it’s going to have to be an interior wall for water lines and if you think you are going to move a sewer or vent through an exterior wall without removing the rock anyway it’s not happening. I’ve added electrical outlets in mine and it’s not the end of the world. I have about a 1 inch gap in my walls. And if it was an attic situation adding in lighting is going to be much simpler as you won’t be crawling around in 2 ft of itchy insulation.

[@crazydrifter13]

Hi Spray jones.What should I use to fill empty cavities in interior of my car? I want to sound deaden the heck outa it on a budget.

[@SprayJones]

I have no idea. Try retail pour foam from a building supply store.

[@pcno2832]

There are more wrong ways to do that than right ones, especially if you expect to keep the car a long time in a wet climate. They had some cars in the 1970s (eg. Chevy Vega, VW Beetle) that were notorious for rust in the A-pillars because the foam that was used held water like a sponge, and some closed-cell foam can absorb increasing amounts of water as it ages and gets crumbly. But if you're dealing with an old car and just want to get a few more years out of it, might as well go for it.

[@paulchoate1]

What about cleaning chipping paint off a concrete floor prior to spraying (we are installing floor joists over an existing screened porch room that has a concrete slab and converting it to a master bedroom). Does the surface of the concrete need to be very clean?

[@SprayJones]

Clean enough that it'll stick. Get rid of what is scaling.

[@carsondavis9675]

I have a question and you seem like the most knowledgeable guy. Can you completely encase the studs in spray foam? I am looking into staggered stud construction and I want a complete thermal break using closed cell. But I also plan on using zip R sheathing outside. Do you know if this is doable? Or do I have to leave some stud exposed to allow for drying.

[@SprayJones]

The technical answer is that one side of the stud should be exposed to allow for internal moisture to have a way out. I would chat with my supplier if I was doing that for you because Zip wall is not bonded to the stud. So that side in NOT 100% tight and can equalize. But would chat with the technical advisers.

[@luisderivas6005]

So What's the SOP to remediate the biggest pitfall, when the mixture is off or the gun is partly clogged, the foam fails to cure, and you have a ticking time bomb slowly spoiling, which cannot be easily removed?

[@SprayJones]

I'd say you got what you paid for and hired a moron and did't watch any of my videos or subscribed to stay updated to avoid all this BS!

[@trojan7593]

We are just now getting quotes from foam spray installers for under our attic roof. I have taken note of your comments and will definitely be asking them...btw, it is a 105 year old home in FL and with the heat, we need more than the blown in cellulose that is on the attic floor. Also learned that all that previous insulation is removed to make it a much cleaner attic

[@SprayJones]

Sounds great! Keeping watch the playlist "how not to be cheated" keep your foam IQ up.

[@marcv338]

Whats that bleu stuf you put on the voids for make them airtight ( 8.34) ?

[@SprayJones]

Liquid air sealant. DAP sells a version of it in the USA

[@Eric-gi9kg]

This was extremely enlightening. Though I would have liked more information on the different material make ups of spray foam. Pros and Cons of different material bases..example soy, etc.

[@SprayJones]

Well subscribe to the channel and begin watching the playlists. The info is there and more forthcoming weekly.

[@ShaneZettelmier]

That was pretty interesting. I do have a question, can you do a thin layer of closed cell and put open cell on top of it? Like if I wanted to do the outside wall of the house with a thin layer of an inch or so of closed cell for a vapor barrier but then wanted to fill in a thick wall or bedroom walls that connect to the outside wall can you spray Open cell over Closed cell?

[@SprayJones]

Stick to one kind

[@marks6663]

closed cell vs open cell

[@freakyflow]

I have a tip for you spary Jones If you ever have a customer that wants a van done .. Remember the foam temps when first applied Will warp thin metal And expanding foam will make the van wall warped ...I applied about a inch of rubber guard undercoating on my SUV/camper conversion And let it sit a day to dry Best would be a weekend before hand in warm sunny temps Then had 2 inchs of walltite sprayed in at a early morning job site as the men were setting up for a house (this saved me a few dollars) This was done in 2 layers due to heat The results was it was perfect The foam meshed with the rubber And the rubber is on the metal very well ..No warpage The truck is quicky very warm in the winter with little heat And cool in the summer I have to open a window to drive Otherwise I can't heard roadnoise lol Hope it helps if you come across the use

[@SprayJones]

Thanks

[@mattheww8504]

what about off gases ? smell? or smells down the road "time"? Thank you

[@SprayJones]

Watch video "I don't want stinking foam"

[@dericktharp5796]

Do mice eat this stuff?.. here in the Midwest corn fields, mice are abundant. If the smallest hole gives them(mice) access to the insulation void. Will or do the find a happy home and start tunneling away?

[@SprayJones]

I have found not for mice, but rats will eat at it.

[@SaberusTerras]

Does it make any sense to do a layer of closed cell for vapor/moisture barrier, then open cell for the sound dampening properties? Or am I overthinking this as a lay-person? Would this cause issues with the chemistry of one causing the other to degrade?

[@SprayJones]

Stick to one type

[@laceymathers445]

I'm highly considering having my garage speay foamed. The only question I have would be one regarding prep work. If I'm having the inside of the roof done with closed foam would I need to put an extra decking on the inside? My concern is if I ever need to replace the plywood.

[@christophergruenwald5054]

No. If you ever need to replace any of the plywood from leaks then you are going to pry it off the foam with pry-bars and drop a new sheet in place. Using a synthetic breathable membrane over the roof instead of tar paper will help the roof dry out quickly if it ever gets damp so it won’t rot.

[@OntarioMiner]

Hello from Toronto Ontario Canada known as zone one climate. How does a spray foam contractor spray the attic if there's no drywall or vapor barrier for it to be sprayed onto the second floor ceiling? What can the homeowner do to prep ?

[@SprayJones]

Go watch my videos on vaulted roofs. I have a playlist.

[@MrSavage77]

What about rodents, mice especiall? I’m planning to redo the isolation in the attick. Initially was done quite poorely with glass fiber without any vapor barrier. And I’m comsidering a hybrid setup, 10 cm of close cell with 5 cm of open cell. Would the close cell be able to withstand the rodents getting in the attick, or I better fill first all the tight spaces between the vertical walls and the wood roof structure with cement, concrete or tile adhesive? I know the the foam will be filling all the holes easily, but don’t know if the mice will be still chew the foam and get through. Thanks

[@Gringogonzalez-g4w]

Oö

[@beebob1279]

I've looked at spray foam for my existing house. You know the companies that will spray foam in through your outside walls to insulate your house. My problem was, how do I do wiring on later jobs of the existing house if there's spray foam in the walls? In your opinion is it worth it to get those spray foam companies to do the walls in a finished house. I don't know if I want to use the company name so no one gets in trouble. But, one is showing a lot of advertising right now on TV for drafty homes, etc. Thank you for any advice.

[@SprayJones]

Go watch my video that reviews injecting foam into walls. Just published within last 3 weeks

[@beebob1279]

@@SprayJones I just watched it and you answered my questions and concerns with those systems. I also spoke with my neighbor who was in construction his whole life and cringed when I asked him about the spray in foam systems. He said he wouldn't do it. If anything he said to take the trim off around the windows and get the correct foam spry in a can for windows and stop the leaking of air into the house. I think I'll start there. Again, thank you for you advice.

[@johnryberg8786]

Can you spray close cell foam over radiat heat tubes? Like if you run radiat heat on a crawl space with metal transfer plates.

[@SprayJones]

Yes. But get the people to show you some tech info. We have it..

[@brixico1404]

A really great video you did. I have a pole barn in Northern Tennessee with metal siding, wood studs and beams. What would you recommend for the walls and the ceiling. It is a 50x30 with 12 ft walls what is an approximate cost I should be looking at? Thanks!

[@SprayJones]

Thank you. Please watch the most recent upload "how much foam do I need". Sub and stick around. Lots more info coming out to help you.

[@jdwisdom9433]

I' d like to get the closed cell foam shot on external walls of my house and then shape it to resemble stucco. I live in Farmington, MO. I'd like to know who does this procedure around here.

[@SprayJones]

For SPF, I have no idea. I am in Canada

[@darezi]

Is there any development in fireproof spray foam?

[@SprayJones]

Watch the video on burning the SPF that we have. I have a playlist for fire, smoke and health / safety

[@MikeB-jn2bu]

Is there any issues spraying with closed cell in a crawl space on the cinderblock foundation wall up and over the sill plate and in your attic floor as far as codes or reselling the house?

[@SprayJones]

Well I can only speak for my area. The answer is NO. The code allows it provided certain conditions are met. It is a very good way to go and the right way since the SPF will not rot, sag, become water logged etc. I have sprayed 1000s of CS in 16 years.

[@johnarizona3820]

Great video, thank you for posting! I'm currently in Washington on the coast and need to seal a house on an extremely tight budget given this pandemic garbage. How can I get the closed cell up here on the cheap? I've never seen so much rain in my life, everything molds out.

[@SprayJones]

Cheap and SPF are two words that lead to disaster. I do not know what you need and what to do about it. Watch some of my other videos to bring your SPF IQ up so you can make sensible decisions. As far as the scamdemic is concerned hold on until new year, after Jan 20, 2021 to make plans.

[@johnarizona3820]

@@SprayJones Naa, I want the best stuff I just can't afford 10k + right now but he walls condense if you lean anything against them because there is no insulation in the walls.

[@twob850]

@@johnarizona3820 John, look into a product called, Concrobium, for the mold issue. It's very good at it's job. But, you will need to deal with the moisture problem first.

[@Dockhead]

@@johnarizona3820 lol nothing is going back to normal for years at this point from the pandemic. the guy has no interest in helping people, its more of a self plug and help people decide what they want if needing a foam application.

[@paulblazich4366]

I had my roof rafters sprayed with closed cell and was thinking of spraying the ceiling joists with open cell leaving the center unsprayed to allow air flow what are your thoughts on it?

[@SprayJones]

What is your reasoning for this?

[@paulblazich4366]

@@SprayJones to help restrict air flow from below to help plus seal the outer perimeter of the attic

[@SprayJones]

@@paulblazich4366 Unnecessary. You need the plenum to equalize which it will do naturally. No need to hinder that.

[@rick9031]

If you spray the roof rafters do you still need to vent the attic?

[@SprayJones]

No.

[@johncannon3251]

@@SprayJones yes if gas appliances like water heater's or furnaces?

[@SprayJones]

@@johncannon3251 That' not what's being asked. Venting for moisture.

[@CharlesGriffith1965]

Excellent tips... I feel foam smarter already!

[@SprayJones]

Glad it was helpful!

[@barabbasrift8874]

What is the blue foam at 8:40???

[@Jason-nn2ik]

It is a spray caulk seen it over on one of The Build Show videos.

[@nick3d155]

I'm actually seeing that this means spray foam may be ideal for my 2.5 car garage. Reason: rodent gaps, 2 car garage door will always be venting some air, window AC can cook the garage well, hanging furnace with a cut-through vent will help in the winter. Goal: spend more time in my garage with easier short-term climate and humidity control. Since the door is about 1/5 of the total perimeter, air exchange should still exist. There's minimal electrical along walls, mostly along roof studs instead, and no plumbing. I'm also not opposed to a 2 type solution.. like fiberglass ceiling and foam sides. Am I way off?

[@PhpGtr]

Rodents will still get into the spray foam - easily chewed. Sad but true - from experience.

[@chris-oq9dg]

Good info Mike. I'll be building a Nonvented attic with open cell spray foam under the roof deck (climate zone 3). It will have a standard enclosed soffit with nonperforated soffit planks. When the foam is applied under the roof deck, should the soffit be filled with foam?

[@SprayJones]

No. The foam follows the roof line inside the building and comes down on to the top plate via an insulation stop. Your choice in installation company should have all that detailed for you in stamped drawings that they use.

[@josephbland4587]

@@SprayJones Hi... I am planning to build a home with this exact situation. Are there any issues with vapor drive or humidity? A HVAC contractor I've been talking to cautioned me as he indicated he's seen condensation issues in attics where he's had to go back and add dehumidification. I'd like to foam both walls and attic but now am a little hesitant with this building system living in coastal SC.

[@SprayJones]

@@josephbland4587 Go watch the non vented roof series. Get up to speed.

[@aol11]

In my state all Box sills need to be spray foamed but I noticed it is open cell in the houses that i work on. Is this correct?

[@SprayJones]

I don't have enough info to answer that either way.

[@nickklaas4776]

What a great vid!!! Thanks for all the info in a quick video. I’m subscribed and I’ll be watching many more THANK YOU

[@davidcart28]

Just out of curiosity what is the fire ratting on the product

[@SprayJones]

Going to have to do a specific video for that. Stay tuned.

[@johnstaton5524]

About 2 hrs. Is what basf is rated for.

[@kennethconnors5316]

nice video , lots of important info for the home owner

[@SprayJones]

Glad it was helpful. There are many more on the YT channel.

[@RogueSecret]

ROCKWOOL! This is crazy, filling the god damn whole house with this is just crazy.... I understand the waterproofing part with heavy kind, but this is just crazy.

[@TA-SEN]

no actually this is way better than rock wool.

[@wst8340]

Dude you got anger issues.

[@SnootchieBootchies27]

I'm with you. Just waiting for the day that all the wood finishes rotting in the first of these houses that were done and everyone realizes how bad of an idea it is to do the whole house this way.

[@fgcvhhbvjhbj]

Is this cheaper than other insulation methods?

[@SprayJones]

First you have to compare rigid to rigid......

[@nickking1510]

Are any isocyanate free ? The auto body industry is starting to get isocyanate free primers . Many talented friends of mine had quit the industry because of isocyanate poisoning and sensitization

[@SprayJones]

Not yet. Iso sensitization always comes from being around it unprotected......and smoking.

[@nathandonner5827]

Nathan Donner Can anyone explain the e84 rating and what iS difference between class A? Also Mr. Jones if you read this would you think a 2x4 exterior walls wills 1 inch of foam on outside (zipr system) then spray cc foam 1 inches then fill with wet spray cellulose. Also using cc fosm to underside of roof sheeting. My big concern is fire and spreading quickly. Is E 84 rated cc foam a good choice concerning fire? Also (for under roof sheathing) would it be cost effective and more fire resistant to spray 2 to 3 inches off cc foam and then oc foam to get the required r value. Thanks for any help.

[@SprayJones]

E84 is an ASTM test for burn rates and smoke density. It is a USA standard and does apply within Canada. It is used to rate different products for their flame spread.

[@loser-nobody]

what's the blue stuff at the end of the video?

[@SprayJones]

Air seal caulking.

[@MrMkapusta]

Is it safe to spray in January with temps at 10-20 degrees. I was reluctant in hiring a contractor because they wanted to spray in these conditions instead of putting me off till spring.

[@SprayJones]

You are correct. We always have heat on and make sure that we are spraying above freezing. Most foam systems have cold temp versions that can be applied sub freezing, but it is complicated and does not work for the best when compared to warm applications. Of course if you are inside, heat on, substrate is above freezing with no condensation then yes the foam can be applied. Provided the guy has a warm trailer, heated hose, a good pattern and all his settings are within standard limits

[@MrMkapusta]

@@SprayJones well the project was NOT new construction and involved them filling the void between interior wall and substrate. They had to drill numerous holes in the mortar joint of my brick then into the substrate they would inject spray foam. 3 holes ever 16” high/medium/low which made sense. Salesman stated the interior wall was conditioned enough to apply the foam even though the outside of the foam would be exposed to the non conditioned brick(backside). Didn’t like the fact that only half the foam would be exposed to a somewhat conditioned environment....thanks for you time and knowledge!

[@SprayJones]

@@MrMkapusta You were correct in your concerns. Also watch my vid on injecting foam into walls...

[@MrMkapusta]

@@SprayJones 👍🏻