Thanks for sharing your expertise. You're definitely the go-to guy for spray foam info. It is very much appreciated.

@SprayJones

2 жыл бұрын

Wow, thank you!

Thank you for putting out reliable dependable logical information you are head and shoulders above your peers

@SprayJones

Жыл бұрын

I appreciate that!

Another quality video sir. I love the door point. Will have yo educate my architect with this as a comparison point.

@SprayJones

3 жыл бұрын

Absolutely

Thanks so much. This comes at a really good time. I’m getting ready to have 24x30 metal pole barn/shop put up . We are going to insulate so I can heat it in the winter here in southern Ohio.

@SprayJones

3 жыл бұрын

Glad I could help

Mike - is there anything to worry about or considering when building a conditioned attic above the living space but having a vented attic above the garage? I understand that the partition wall in the attic for the garage would be insulated with open cell in my scenario, but is there anything wrong with this? I originally intended on continuing the R30 on the roof deck with open cell but have now thought about the issues above the attic with the building up of moisture at the peak. Maybe I’m overthinking this, but was hoping for your input.

Do a video on ping pong humidity in the attic and how to prevent ridge rot. Thanks love your videos

@SprayJones

3 жыл бұрын

You SPF the direct to roof deck and go non-vented. 4 part series on roofs already made.

Great video Mike, question, if you have a open crawl space, how many inches of CLOSED CELL spray foam do you need between your floor joist to form a moisture barrier? Thank you in advance.

Great explanation of the humidity and due point table. Very interesting, and it's true most finished homes have 30% humidity and 72f. That's a good basis. As a temporary measure I install an r20 in attics when the soffit isn't installed and there are high winds. That usually prevents an excess of condensation for the mud to try on the ceiling.

@SprayJones

3 жыл бұрын

Thanks for watching!

@SinnisjInsulator

3 жыл бұрын

@@SprayJones thanks for sharing the info 👍

Thank you for all of your videos. Straight and to the point. I am looking at finishing my basement and your videos have been very helpful. I will be meeting up with a spray foam contractor soon and will be looking at 1-1.5” of closed cell over the exterior poured walls and 2-3” in rim joist areas(I live in Nebraska). That way I have the vapor barrier and air sealing I need. I plan to come back and 2x4 metal frame out at around 2” off the walls. Then use BIB blown in insulation to fill the whole metal stud cavity.Thoughts?

@SprayJones

2 жыл бұрын

2" for all areas. Skip the bibs. Enjoy a warm basement that will be dry. We do them all the time this way.

If you do flash and batt will the 3 or 4 inches of batt insulation insulate the surface of the 2" spray foam sufficiently to cause condensation on the surface of the spray foam? In this situation the inside surface of the spray foam is being cooled by cold conduction from outside but is insulated from the warm interior by the batt insulation.

I have a metal roof shed with 3" high box metal rafters. If I have the inside spray foamed will I still get condensation through the rafters since they are touching the roof?

Good video and well covered!👍 Im doing a building and have a pile of rigid XPS 2” and 3”. Was planning to fill attic and spray/seal all edges. Since the XPS is not adhered to the bottom/back side of the OSB roof deck/wall; is there a Chance of moisture/ condensation to build in that space? I watched the 4 part series, and want to make sure best approach. This will be a heated storage space. It’s a 48x84 with 20 sidewall pole building, roof deck and walls sheathed with 1/2” OSB Would there be any Benefit to apply spread groan over the top of the XPS? I have on hand 10000 Square feet of 3” and 7000 Square feet of 2” Plans to place below concrete slab and in walls and to roof deck. Would appreciate to hear if you have seen This application. Thanks and great videos on this topic!! 👍👍

I was just wondering about this in relation to fabricating a bent stainless sheet for a shower liner. THANKS!

@SprayJones

3 жыл бұрын

Glad I could help!

Great ❤

Is there a coating that can be sprayed on the foam insulation before you put drywall on that would ensure no offgassing enters the home? I do a lot of mold remediation and during that process weatherization is sometimes included and I have had clients ask me this question. Thank you

@SprayJones

3 жыл бұрын

All products emit something. So the SPF is the best of them all. Most SPF will be zero voc in 24 hours. Paints on the other hand do not stop smelling for 14 weeks minimum.

I have 29 ga metal walls in my barn. Any concerns spraying 2” closed cell directly onto the inside of metal panels?

@SprayJones

3 жыл бұрын

Flash coat with 1/2 inch and then build up the thickness

Curious to know has the hyperinflation effected the Spray Foam industry? If so, how much of an increase since Pre-Covid and do you think it will ever get back down there? Might be good video; I’m sure there’s a ton more questions regarding the subject that could be answered.

@SprayJones

3 жыл бұрын

Prices have gone up, some worse than others.

If I build a house with a conditioned air attic with cathedral 12/12 roof,with a loft for living, does it make sense to do a whole house with closed cell to the minimum needed for air sealing, and condensation. And then do open cell over the top of that to get a full insulation R value and do it more affordably? Edit: I just watched all four parts of your cathedral ceiling videos, but still not sure about getting enough R value in zone 5 in the U.S.

@patrickdana676

2 жыл бұрын

Zone 5 the building code requires a min of r-20 of air impermeable insulation to control condesation

What about a state like Indiana how much would be required there? Lot's humidity and temp swings.

Hey Mike, I want to spray foam a large metal building but I want to go with open cell because it’s more price efficient for me. I live in the south, specifically Georgia and want to know if open cell on the metal ceiling would be a good option for me.

@SprayJones

Жыл бұрын

I think so. Talk with you SPF contractor...

Can I do the same by going open cell with 6mil plastic vapor barrier on the heated side?

@SprayJones

3 жыл бұрын

Rules for open cell are different than closed. 1 inch of closed cell is miles away from open...

Humidity in my area is much higher. We filled the 2x6 walls with 5" open cell (some spots are less). Installer said it would be a vapor barrier. True?

@SprayJones

3 жыл бұрын

Open cell foam is not a vapor barrier on its own at 5 inches. I have a video just dedicated to answering that question.

👍

How many inches of closed cell foam is required for a mushroom or plant grow room around 75% humidity at around 75 degrees?

@SprayJones

3 жыл бұрын

I don't give out specs for projects I am not doing.

I’m building a home in Missouri. I’ve talked to two insulation installers and they say I don’t want closed cell in our humid environment. “The house needs to breathe”. Is this just what people have been doing for years or is an airtight home not ideal in humid environments?

@SprayJones

3 жыл бұрын

I have a video called "Can we build a home too tight". Please watch. This channel will answer all your questions. FYI, you are getting rubbish info...

Deos the foam stop moisture or is it still there between foam and exterior or absorbed and distributed through foam so on interior you just dont see anymore?

@SprayJones

Жыл бұрын

Foam stops moisture from interior to out.

Would adding open cell on top of 2” closed cell eliminate all condensation issues?

@SprayJones

Жыл бұрын

No. You already have it in 2" closed cell.

Just got back our updated quote from our insulator and the price of Closed Cell has jumped 30%. You think it will come back down soon, say before fall? The new price puts the foam insulation into the "luxury" category for our small home build. I don't want to do batts, is the cost still worth it? Thanks for the knowledge you share with us, greatly appreciated!

@SprayJones

3 жыл бұрын

For one, our foam has NOT gone up 30%. Smaller operators are having to buy product wherever if the are cut off, and sometimes that means panic prices to them and so on to you. SPF is totally worth it. Closed cell is the BEST product for insulation in 80 years. You only have to pay that bill once and you are good for generations. I think you need to get more info.

@sharonbarbour276

3 жыл бұрын

@@SprayJones We are in a rural area where there are only a two different insulators within a 3 hour drive. He uses Carlisle SealTite. Is that a good product?

My only concern is future cracks in basement . How could you detect any problems?

@SprayJones

4 ай бұрын

You don't. Small surface cracks are stopped, but large ones will crack the SPF. At what point do you expect to be dry and warm?

You say it's simple but the reality is behind that chart and the standard is complexity. That delta in the chart that shows condensation can go both ways, you can raise your indoor RH and get condensation and you can change your outdoor temperature and get condensation, you can increase your wind chill and get condensation, you can have both higher humidity and lower temperatures. So you need to know your climate zone and your incidence of extreme temperatures and then factor in a % of buffer to REALLY insure no condensation behind the walls of a structure. Otherwise, over time, you can get mold growth. Mold is a funny thing, all it needs is 21% moisture content and it grows, no matter what, then when it drys up it stops growing but lays dormant waiting for its chance to grow again. Mold can grow very fast, I have seen 1/4" thick mold layer grow in an air handler from one summer of condensation inside the air handler from a stuck chilled water valve. so, in short, the answer to this question should involve the ashrae standards of climate zone and incidence, the R value of 1 and 2" layers of the foam and an agreed upon buffer to make sure nothing condenses during extreme weather events. If you really want to geek out on this, you can take in projections of global warming trends we are already seeing witch do not necessarily mean things are getting warmer either in your climate zone, it really means more extreme weather events more often and warmer summers.

@SprayJones

2 жыл бұрын

Global warming trends.... that aren't warming. "witch" is it?

@johnnyb8629

2 жыл бұрын

@@SprayJones like most things in the universe, it's complicated. global warming may not just be distributed equally over each month as a few extra degrees of heat. The Earth is a dynamic place filled with saltwater, fresh water, huge global air currents, giant slabs of ice etc. The Earth is spinning ya know, so this causes some places to experience extremes of weather instead of just a few degrees of warmth, some like deserts in Australia, Africa do experience extra degrees but places like the midwest of US , and south along the gulf experience more tornadoes, or warmer winters on average but with colder extremes.

So you’re saying that even the screws that stick through need a solid inch covering them to keep them from dripping condensation? So say they’re sticking through 1/2 inch then you’d need 1 and 1/2 inches of spray foam?

@SprayJones

6 ай бұрын

Yes. If they get cold enough they can drip at the tip. If that will be the case increase the amount of SPF.

I'm going to be building a cold plunge (kzread.infoifpMX-7fhtM). What kind of spray foam do you reccomend I insulate it with. I'm building a wood frame around it and I plan to put a vapor barrier as well. I'm worried about condensation from the cold plunge. Any specific foam to stop that?

@SprayJones

Жыл бұрын

Closed cell.

@russ4032

Жыл бұрын

@@SprayJones Sir, thank you for replying. Someone like me who is naive to this greatly appreciates your reply. Do you reccomend anything off the shelf at a home depot or lowes?

Useless