This Old House | Net Zero Blanket (S40 E6) | FULL EPISODE
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- čas přidán 23. 08. 2024
- Roof insulation is next step at the net zero house. Richard tours the basement of The Breakers in Newport. Kevin meets Congressman Norcross at the house, who is also an electrician. Apprentices install and flash windows.
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Kevin finds Jeff and apprentices Kevin and Mary creating a special insulation panel of mineral wool and sheathing to cover the old and new roof. Richard takes a different kind of Newport tour in the bathroom and basement of the grandest mansion of all, The Breakers. There are 211 lawyers in Congress but only one electrician. Congressman Donald Norcross comes to the project to help electrician Ben Giles with rough wiring. The Congressman is a supporter of the Generation Next initiative. An electricians’ class from a local VoTech school also visits the jobsite. Seriously efficient windows are going in and Jeff shows the apprentices the triple-paned cutaway with two cavities which are filled with gas for heat resistance. Installing the double hung windows completely square is crucial. He shows them a new way to flash the windows using a stretch tape that makes sealing the corners easy, and then the first window goes in. Insulation does not stop on the outside. Preparations are being made in the attic to insulate from below. Kevin finds Tom Kelly and the foam team getting ready to spray closed and open cell foam in the bays.
Chariho Regional School
www.chariho.k1...
Electrician
South Shore Electrical Contractors
401.935.1051
Congressman Donald Norcross
norcross.house...
Air and water barrier
GCP Applied Technologies
gcpat.com/en
Mineral Wool
Rockwool
www.rockwool.c...
Spray foam
Ecologic Insulation
www.ecologicins...
Energy Efficient Windows
Humphrey’s Window and Door Design
www.buildwitht...
The Breakers
www.newportman...
The Preservation Society of Newport County
www.newportman...
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This Old House | Net Zero Blanket (S40 E6) | FULL EPISODE
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As a retired Brit, who briefly lived in CT as an expat, and has watched every TOH project since Bob Vila times (and a pensioner who cannot afford to subscribe..) I cannot tell you how great it is to be able catch up on the latest full episodes here in the UK - especially in these dark times. Thanks !! (and all my best wishes to Roger).
Nice of you to say! Sorry about Meghan Markle - that wasn't on purpose.
@@boedillard8807 Hey, no problem - at least you took her back...!.
@@parish2091 we need a give-back. 😂
@@heathdetweilerRealtor gave you Meghan back (phew...!) - plus a Duke - what more do you want...!
I like that they are stepping up and trying to adapt to new building techniques. The training element of the program is awesome!! If TOH was like this 15-20yrs ago, I'd probably be in the trades. Great Job TOH!! Keep it up 💪!!
This Sweener guy is a great teacher and easy to understand. Loved the mock up of the roof system!
Nice they are switching up the huge, old house from 250 tonnes of coal to geothermal electric heating and cooling. My century old high desert house cools itself when +95F outside during the day requiring no air conditioning. I flush the house with the cool night time air all night long and in the morning I close in the coolness. The interior temperature raises from 68F to 78F over the day. I installed two layers of R29 insulation in the attic making R80. I injection foamed the double brick walls to R20 and dug out the basement to install R25 floor insulation. With a 3.35 kw solar PV system from SunPower, I generate 6,000 kilowatt hours of electricity annually and so my house is now a net zero energy house with all electric appliances and the natural gas line is disconnected from my property.
Cool story bruh
Never knew what I wanted to do in life throughout high school and when I had the chance to take up a job as a plumbers helper. At first wasn’t too keen on the idea but as years grew by and I learned more and more, I knew everything I learned would give me opportunities in life. Apprenticeships have so many benefits I wish younger people would think of them
I have a really difficult time dealing with just about every person that want's an apprenticeship. They either come in book smart commonsense dumb, or don't want to work... and the work isn't that difficult, and if they would listen the work gets a lot easier.
Shain Andrews I won’t lie that I was like that, I struggled to learn because I would overthink of certain things. But now I know how to work by myself and rarely ever need help from my mentor. The thing is that most apprentices need time and patience, a lot of trades struggle to find workers or people who want to learn. So just give us new young guys some time and patience so we can keep building our skills.
@@bruizzz13 From the perspective of a teenager, it's mostly pressure to go and get a degree of some sort. Pressure from our parents, relatives, teachers, and just societal standards. I still have time to consider what I want to do, and I definitely want to find a way to integrate the electrical trade into it.
CC when Kevin is talking to the congressman; "I was expecting maybe to see a suit and reptile", LOL
@Uncle Eidolf If triumph had done the "touching", there'd be as pool of blood all over the floor (kind of like the one all over the US, right now). Just saying'.
I wish TOH would respond in the comments section. I see some really good questions that could be addressed or expanded upon. Missing a huge aspect this platform provides.
A Tomahawk missile landed on the roof of that house and bounced right off!!!😂😂😂
Sure, but it rained for 2 weeks and the roof couldn't dry out on the inside. It rotted off in a year.
Tommy must be near because they were using his cordless driver. lol
Lol, and they are so bad compared to dewalt impacts.
@@ozziesheppard17 They sure are expensive though. They look kinda cool though. lol
Some thoughts:
- Why the extra layer of sheathing under the rockwool? Seems like all that would do is add more dead load for the rafters to carry.
- Two layers of ice and water seems excessive, though I suppose not a bad thing to do. How vapor permeable is it?
- Closed cell seems unnecessary since you (should) have enough top-side insulation to keep the sheathing from being a "condensing" surface when it's cold out.
- Closed cell actually seems harmful here, since your sheathing now can't dry in either direction. I think a typical hybrid roof allows for drying to the inside.
- I imagine water pooling at that 5" perimeter and saturating that extra layer of AdvanTech someday down the road. Good thing it has nowhere to dry. Or maybe it's fine because "AdvanTech can get wet"
Evan Edstrom Good analysis
This is mystifying, when they live so close to Dr. Joe and BSC, why they would create the cavity problems that they are. I have continuous exterior roof insulation in place for a decade now, with much less layers, and a lot more intelligence in design, and NO problems. This has potential for nightmare results, sometime down the road. The multiple control layers are the culprit, creating "soft layers" that will never dry, once breached. Who dreamed up this mess?
@@leestevens446 Contractor. More cost, and drying problems won't appear until contractor has run with the money.
@@Nill757 That is how it works in America today. Take the money and run, evade all liability, and stick the next chump in line with the true costs. I am not an ardent supporter of the building contractor "tribe", despite being grandfathered in to a lifetime membership.
@@leestevens446 Not everywhere in America; there are some good builders doing quality work for $100 sq ft.
Mary and Keven are very lucky to learn a lot from the best in the business - way to pay it forward everyone!
Forgive me if I missed this, but...doesn't this roof assembly create two sandwiches with no side to dry to? Theres an OSB trapped between closed-cell foam and ice & water shield, and then the osb-mineral wool-osb sandwich betwen the Grace...if 0.05 perms (the Grace) enought to let moisture find its way back out? What's the perms of 2" closed + 7"open (+wallboard)? What did / would WUFI say?
Such a great learning experience for us to see the apprentices learn and we get to learn with them. Great concept!
That's an amazing house for being 1890's
Definitely a high end home. I wish they would share the approx. cost maybe with a date stamp (prices would change over time) just so we can have an idea of the cost to replicate a similar construction. Just a suggestion, I'm a diehard fan. Thanks
At least $500/sf.
5:32 Richard looks high AF! LOL
That Zip flashing tape is pressure activated and needs to be rolled for a proper install
its stretch tape brah.
It's funny they didn't just fill the roof rafters with closed cell foam, reason "cost prohibitive" but they did two layers of ice and water shield, and three layers of sheathing, two layers of mineral wool and cedar shingles. I'm pretty sure there's no such thing as "cost prohibitive" on this project. Give me a break.
That was more to help the guy watching the show to make informed decision is my guess.
Yeah, this must have cost a fortune. Cant even imagine what the increase is to my current shingle replacement quote!
I still don't get why there are 3 sheets and not just the 2.
I've never seen such an over-engineered or over-insulated roof. Good lord.
The roof assembly is bizarre. Why sheathing, then ice&water, then another layer of sheathing?? What's the point of that? Why can't you place mineral wool batts on top of the Ice&Water membrane, then sheathing over that? Heck, why is there two layers of Ice&Water at all? Why not have Ice&Water on top layer of sheathing as you normally would? I've seen some crazy roof details but this takes the cake.
I'd do sheathing, mineral wool batts, sheathing, WRB, cedar breather matrix, cedar shakes and get nearly-identical performance.
@@matthewbarbercheck8068 yaaaay I'm not the only one! also wondering whether it makes it less able to breathe.
Great video! Love of the apprentices get a part in everything!
On that roof then, two sheets of 5/8 ply, plus the two layers of mineral wool. Is there any budget limit in sight?
Apparently enough that they didn't do the entire bay in close cell foam haha
Actually, there's three sheets of plywood, and two layers of Ice&Water!
The two layers of mineral wool is purely code-driven (thickness is based on climate zone) if you've got a conditioned attic - need sufficient exterior roof insulation to prevent condensation on underside of roof deck. Any type rigid insulation can be used above the roof deck.
I'm building similar conditioned attic in climate zone 1, also using mineral wool (top and bottom of roof deck - no spray foam!). Only need R-5 exterior batt in CZ1 (about 1 1/2" thick vs 5" thick shown here). But I'm building with a more-simplified roof assembly with 'only' two layers of plywood with a high-performance WRB (ProClima Mento 5000 self-adhered) on top layer of plywood. Using Benjamin Obdyke Cedar Breather matrix and cedar shakes. Bottom layer of plywood will be air-sealed with acrylic pressure-sensitive tape (Zip tape) along the seams.
Million dollar roof
I cant imagine how much this roofing system cost. All for R64? I have R50 rolled and blown fiberglass, and a normal architectural shingle roof. Bet the price difference can’t be made back by any reduction in energy usage. No way.
Tennessee pink marble isn't actually marble. It's mined near Maryville, Tn., and actually has seashells in it. Also, the lines are stress fractures. Beautiful stuff.
Kevin just doesn't know enough to ask good questions. E.g., that double-layer rockwool looks to me like an eventual unventilated sponge.
At least the sprayers use good PPE, workers always ask you employer for the correct safety equipment needed for your job
Hey Ben nice clean job, master electrician 38 years
Whoever engineered that roof system is out of their mind !!!!
Wear gloves when handling mineral wool that stuff gets in your skin and is very itchy
And a mask.
Net Zero is great and I fully support it, but is it like 1000% more? What's the payback period? Doesn't seem like an average person could afford this kind of construction.
This is a 1%er vanity build.
why the extra layer if sheathing over the ice and water shield. isn't there already a layer under that ?
That's what I was thinking. While all the insulating 'layers' you can get as well as the ultimate insulator: dead air is a good idea to achieve 'Net Zero', I would think the homeowner would have to take a 'preventative maintenance' approach to his roof shingles. Meaning: Replacement of the roof BEFORE any leaks occur. Could you imagine having to yank off all that top sheathing and the soggy wet mess beneath it? Not me. New roof every 5-10 years!!
You were reading my mind. You end up with a 1 1/4" layer, then mineral wool, then another layer of OSB? Seems like a waste.
Probably more strength for the 8" screws to grab to, if you notice he got a good 2 1/2 to 3 inches of grab so they can grab into the rafters also.
@@MrLegendL2118 boom! Makes total sense. I'm not a professional framer but I've done a tremendous amount of framing in my day and I was drawing a blank. Of course he could sheath the roof in 1 1/8 advantec then put ice and water on top, then skip the doubled-up panel... that is if he wants it to be Apocalypse proof and has an unlimited budget :)
Extra layer of sheathing so the roof shingles can be nailed onto it...?
I would talk about risk of spray foam and risk of doing the mix approach open and close.
Wow that roof is a serious system
To make a net zero house how much more materials does it take and what's the environmental impact of making them? I think its great to make a house super efficient but at what impact to the environment does it come at?? Serious question
Net-zero almost never makes financial - or ecological - sense. This house is a middle finger to the planet - it's what clueless 1%ers do so they can virtue-brag at their cocktail parties in the Hamptons.
Go ahead and ask the congressman some questions.
THIRTY SECONDS LATER...
No more questions! :)
9:15 looks like Gatsby's mansion from the movie "The Great Gatsby"
It was filmed there, w Robert Redford.
I'm not a construction professional, just someone who has studied insulated roofs on YT. I'd like to know what some of you think of the following alternative (traditional with modern materials) roofing solution, namely:
- attic built with OSB and rafters in usual way, filled (on floor) with 24" or more of Fiberglass or traditional insulation (cellulose, rockwool).
- vapor barrier on inside underneath insulation, or reflective bubble wrap (Refletix) sealed as vapor barrier.
- vented attic with ridge and sofit vents and extensions along underside of roof to ensure adequate drying of roof panels
- membrane or tar paper on top of OSB roof panel
- steel (or aluminium) shingles (the ones designed to look like slate) with air gap provided by grid underneath.
In sum, no zip panels, no foam, no cedar shingles, no thick roof insulation.
Do you think it would be cheaper, as energy-efficient and more durable? Is giving up some attic space a good trade off to make in order to reduce costs and simplify construction?
I prefer standing steel roof over steel shingle for flushing water, for insulation, foam panel over fibreglass. I‘m studying how join the panels togather.
I like that bald electrician!!
Sadly, Scott Caron decided to leave a TOH when his contract went up.
I'd love to see these guys do something crazy like turn an old 747 airplane into a functional house. Think that would be pretty cool.
Also, the bit with the congressman was pretty cool. I can actually kinda relate to that whole bit: i went to college and got a bachelor's degree as well as an associate's at a tech school and am now working in the trades as an avionics technician working on C130 aircraft. Part of me regrets getting my bachelor's because i really don't use it for what i do. Besides, college nowadays is a scam anyway. Paying many thousands of dollars to be indoctrinated and be offended at everything isn't a good way to go. I'd say to a young one that college isn't necessary in todays society. We need those tradespeople and "blue collar" workers. College isn't for everyone.
They should have brought Norm and Tommy in to meet with those kids. I mean who wants to go on This Old House just to meet Kevin?
Where is the bald guy electrician that explains clearly
Scott is not with This Old House any longer.
@@unclebuild8480 yeah why is that?
@@timtaffinder end of contract and he wanted to move on. Check his Twitter feed
House used 6 weeks out of the year...sheesh.
Seems I'd want to talk with a structural engineer before installing a 7 layer roof that weighs as much as snow, even before snow loading.
I'm from california. The only job where you use 3 people to hang a window is run by Cal Trans.
Love this Episode!
Can you imagine how much that roof system cost?!! GEEZ!
For sure its never going to pay off in savings. Not in one lifetime at least.
You can get the same r42 rating on your roof too! For the low low cost of $300,000! And the roof will only be 7 feet thick.
Need to give viewers the facts behind spray insulation so they can decide if they want it. Open cell collects moisture. Closed cell and most open cell easily burns in a house fire. Since closed cell doesn't breathe, it's a poor choice when wood that contacts it might get wet, resulting in rot/mold. Inside between the rafters, you're almost certainly safer with the same mineral wool that you used on the outside. It won't collect moisture, is breathable, and won't burn.
Hot and cold running salt- and rainwater.
It looks like a good job but the price will even up with cost of utilities in about a hundred years.
That roof has got some heft to it after all that.
Does that water and ice membrane allow diffusion?
Hmmm. Where is the dew point? Could be some serious rot issues if not in the mineral wool layer.
You gonna learn today lol
where are the mesh intake vents and if he put ice and water so soon why?--what was underneath and can I spray foam inside after that?
Marvelous
13:48 carhartt makes uggs too? lmao
Exactly!!
will the stretch tape - break down or tear or fray - over a limited amount of time? Thank you.
There was suspicion of the ZIP components by builders in general early on, but I think that is subsiding a bit. The tapes seem to be very tough. The downside is that I wouldn't want to see the condition of the facing on the sheathing if, for some reason, you had to pull that tape off after it had been there for a few weeks or more. Once they are rolled (or have equivalent significant pressure applied), called "wetting" by the adhesives guys, they seem to create a tough bond especially with a bit of time added. Of course, if they are installed poorly without firm and thorough rolling, etc., then it's anyone's guess.
Jury is still out on pressure-sensitive acrylic tapes, but looks durable so far (are they 100-yr products as claimed? Perhaps). They've been used in Europe for several decades and over a decade in the US. In a critical area like window/door sills, I'd use a liquid flashing product (almost every major sealant manufacturer now has them). Liquid flashing has long been used in commercial buildings but now has made it to residential. I'd use pressure-sensitive tape around the rest of the window without a qualm.
Spend a million dollars to save 300 per month on utilities.
It's not about the money, it's about lording your eco-friendliness over your other rich neighbors
For the additional $50k (a more realistic cost), they are good to go when the grid goes out from time to time, which can be rough in the winter and cause other damage that they'll now avoid. I lost electricity while living in Boston for a couple days during the winter, and it was very unpleasant, to put it lightly. On the generation side, solar + battery is also now price competitive with grid power in many parts of the country. Things are changing remarkably fast.
Great point !!!!
what do you guys have about crawlspaces? Many, many in the US are in rural areas having CS's!
They didn’t zip tape the wall to the roof(monopoly house) prior to framing for rockwool?
Is that Roxul mineral/rock wool? I Tried the pink company version of it and what a mess.
Yes it is, and it is alot more consistent and does not just "dust apart" when you're handling it.
Hm.. Marble distribution panel. To bad they don't make these anymore :)
Just imagine if that house was being built nowdays with the same limitless budget the vanderbilts had
I had a copper water line in the ground under my slab that disintegrated within 8 years. I’ll never use copper pipe under the ground again.
Is that water from a well? Acidic water eventually eats through copper. With water that is too acidic, PVC is a better choice throughout.
I.enjoy the show
Jesus Christ 3 layer of 5/8 OSB? That's expensive Why not just 3/8 or 1/4. The Roof's first layer is strong enough.
What is the Cost difference Between that and a SIP roof? SIP is pricey but so is 2 layer of rockwool and 3 layers of Advantech. 5/8's None the less.
Exactly!
The roof system they're doing on that house is ridiculous. It's probably costing 3-4 times what it should. And wood roofing shingles? Really? Just rip off the old sheathing (or not and go on top of it) and put down SIP panels with the desired R value. lay down the Bituthane sealant layer, and put down a metal roof (which shouldn't require venting and will last forever.)
Agreed. SIP panels get around r-8 per in. vs the r-4 that they are using with the rock wool. And would be cheaper material and labor.
Wow guys u awesome
Just use closed cell spray foam. R6 and no need for vapor barrier. I just don't know why they're using anything else when trying for net zero.
The mystery is why anyone willingly uses spray foam inside a living space. Why not douse your house with DDT and use lead paint while you're at it...
@@ArthurDentZaphodBeeb stop being a noob conspiracy theorist
Here’s my question. How much do all these efficiencies increase the building cost of the home? And is that completely offset by the savings in efficiency over the life of the home? Where’s the diminishing returns point where too much effort is used to insulate?
To answer your question. There is considerable cost involved going this far. Unless the house stands for 200 years or energy quadruples in cost they will not recoup the cost in dollars. In comfort it will be amazing and immediately. As a free society we are able to spend our money as we choose. If we only measured things in dollars and cents there would not be cars with radios, sunroofs and leather interior as they are unnecessary. You would have no options as some govt panel and bean counter would choose for you what you NEED.
The goal here is to achieve net zero meaning the amount of energy spend is the same as the amount of energy generated in a year. This house would probably would need a level of insulation that would not recoup from savings in efficiency. Unfortunately we live in a world where carbon emissions are free, so net zero technology is not cost justified.
@Uncle Eidolf Very silly. No doubt you have a full understanding of the analytical process and vetting work done in drilled ice cores at the poles and in permafrost, right? Somehow all the scientists, agencies, and universities working on those projects as well as real-time measurements have all conspired without even knowing each other or being from the same countries / political systems... Yeah, okay.
@@ReflectedMiles people have much more important things to worry about. Jesus is returning likely in our lifetime and most people are not right with God. That is what really matters.
@@jessewilliamson82 As I recall, that was the belief 19 centuries ago and many times since as well. I'm not saying that the rise of CO2 should hold all other issues or considerations hostage, but I am saying that claims that measurements and history don't matter, or are mere conspiracy, are just another way of evading responsibility and demonstrating a serious lack of love and concern for others who share our wider, common living space. Christians haven't managed to delete the end of Revelation 11:18 yet, though I have no doubt that there are theological papers and commentaries to reinterpret it, as there are for nearly everything else that the Bible says so that no Christian has to actually live it if they don't want to. I suspect that if the apostles or even Jesus himself actually showed up today, Christians would have serious problems with them and be publishing all kinds of declarations about, and rationales for, how false they are.
Why were there two ice and water shields. Don’t you only need one?
One is for ice, the other is for water!
Jokes aside, that is a weird assembly: closed-cell foam + 2x ice&water is a sandwich of 3 vapor-closed layers. Can't be good in the long run because there is no direction in which to dry.
The roof does not seem to be a sound structure…compression strength of mineral wool is only 11 psi…
Now, there is one bartender in the congress.
Code Man and was it 257 lawyers? Seems oddly weighted to me and not in a good way.
Are vacuum-insulated windows an option on the market? I just recognize how insulating a good thermos is using this technique.
Just get triple glazed with a gas of your choice.
It's not possible to maintain a vacuum in that type of assembly.
14.5 psi atmospheric pressure vs. large flat sheets of thin glass says no. They do make faux divided light windows (decorative muntins inside the glass sandwich for easy cleaning). If the panes were small enough, those could provide physical support against the pressure, but then they will be transmitting heat as well (like studs in the wall). I assume the manufactures have done the math and found that overall inert gas beats vacuum + necessary supports.
This is how you build a home. And I bet it will be quite!!
Not a roof, it's gonna rot in no time.
Well I think we can agree that we need less lawyers in government. Lawyers should work for the politicians. The politicians should be people who built a real career in the community.
I thought apprentices got hollered at incessantly, shot at with the nail gun, and sent out to find left handed spackle shunts.
3 layers of 5/8 sheeting. I don't care if this house is net zero there's no way you make up that expense in energy savings. There this thing called return on investment and alot of these builders don't understand that.
Let's say this house takes 200 dollars less a month to heat and cool that would be 4 years of roi just in the added expense of 3 layers of sheathing.
That was a lot of sheeting used for the roof.
inhaling all those fumes the insulation installer never grew up
Love TOH. ❤
lol how much will all this insulation cost and will you ever have a chance to recover the cost? What there is a leak in the roof? Will the whole thing just get soaked and be covered in mold and you'll be forced to replace your entire roof?
Comfort and homeowner satisfaction will repay immediately. Two layers of ice and water shield and two layers of Advantec sheathing.
@@jessewilliamson82 lol come on, in a world where money doesn't matter sure, you can justify anything like that. I've seen $20 million houses that are full of impractical things as well, but the biggest selling point of a Net Zero house is the cost savings which just doesn't add up if they actually crunch the numbers.
@@Arieeeee I cannot agree with you as almost every net zero house video i have seen the owner was not as concerned about the original cost savings but the secondary.
How is the mineral wool air sealed?
the74impala I was wondering about that very same thing The only air seal is in the interior attic rafter area so that insulation doesn’t do much but collect moisture causing rot
@@bradmitchell4936 the only mineral wool i remember was on the roof. That mineral wool was on the unconditioned side of the roof. The closed cell foam is doing the air sealing.
Anyone ever have issues tracking down a roof leak in one of the custom roof designs? We're about to build a home, and I'm concerned about the closed-cell trapping water if the roof leaks down the road. At least with the open cell foam or batts, you'd see a water spot on the sheetrock. Thoughts?
That's precisely why I'd never use spray foam for almost anything. No way to do maintenance. You're fully reliant on the barrier systems to keep things dry, because there's no way to know if something leaks.
@@bmay8818 Your nose will eventually let you know.
That's what insurance is for. Who cares if you have a deficiency, and the closed cell foam prevents drying out and forces the sheeting to stay moist? Once the issue gets bad enough you notice it, you'll probably have a HUGE issue to deal with and just replace the whole roof at that point. The point of it is water/air barrier (also adds structural rigidity), plus insulation factor.
@@MrAbcdefghi12435 So your thought is "it's fine, let your house rot instead of building it properly, then someone else will pay to replace it"? That's a pretty crappy approach to things.
Avoid spray foam at all costs. Offgasses forever. Horrific environmental footprint. If you have to tear it out, its a nightmare - essentially have to dispose of anything it's adhered to.
I think you're certifiable to put the stuff in a residential building.
Remember, for decades asbestos was hailed as miracle material. And lead was added to paint, to gasoline and used in pipes since Roman times. Doctors said cigarettes were healthy (at least those sponsored by cig makers).
Spray foam will join the list of 'what the H were they thinking' in the not-too-distant future.
It would have been nice to see the rest of the flashing details for the sides and top of the windows
This house is so expensive!
That roof insulation is ridiculous
Not at all. 5" of exterior insulation is code-mandated in their climate zone when building a conditioned attic. It's the third layer of osb and bottom layer of Ice&Water that is ridiculous.
The U.S. is so far behind the curve with these net zero builds it’s a shame only millionaires can build these homes here. That roof system, wow, ever here of SIPS. And what’s with those useless triple pane double hung!? Tilt and turn are double the window those are.
@Uncle Eidolf At least on the ridicoulus windows I have to agree. Three panes, but barely any insulation in the thin frame and without a proper closing mechanism...
What a bunch of jokers...no need for the first layer of ice and water shield and the one layer of 5/8" shearing on that roof! Ripping off the homeowner paying for that.
The only reason I can think why they did it is paid product placement. As for building science, it makes zero sense.
good to know I'm not totally losing my mind.
@@ArthurDentZaphodBeeb for what? osb? lol as for ice and water they could have done it later still.
what you think the total cost is of this rediculous roof system is and when it will pay for itself ?
Don't forget to roller that zip tape!! Otherwise you do not get a good adhesion and it will come up over time.
The roof has too many sandwich layer of impermeable ice and water shield. Anything fails, it will never dry out. the roof shakes do look great tho. Please, do NOT built this roof assembly. Assemblies that dry last longer. woohoo
this season was for many years ago. right? 2005? But it posted just now?
2018, mentioned in breakers segment
way too much overkill, What is the pay back time?
Infinity... I don't even need to do the math.
So I do not need to have a vent in my roof? I can close and open sell the hole roof
This home has a conditioned attic - it is not vented. That's why they needed the 5" of exterior roof insulation - it's code-driven requirement to keep the roof sufficiently warm so that the warm conditioned attic air doesn't condense on the underside of a cold roof.
@@ArthurDentZaphodBeeb if you spray foam this conditioned attic, will the sheathing inside go bad since he sandwiched ice and water weirdly in between creating a divide between inside and out? also I don't see any mesh vents or any vents for that top shingle holding osb to...ventilate.
Heating system of this house is crazy. and barbaric.
1:16 - what was that their first time with a nail gun? It is OK - everyone has to learn at some point. Wildly swinging it like it was going to backfire - resulting in random depths and over driven fasteners, now you'll want to go back and patch each with with zip flash. Not a bad idea to do that or use zip tape with a j roller any way so that isn't a put down.
For Zone 5, R38 hasn't been code for 2 years! its R49 now!
Carl magna III well, brainiac, considering that these episode first aired beginning in October of 2018, they were probably filmed early in 2018. Which probably means whatever codes you’re taking about...if true...changed AFTER the building was does. I’m pretty sure these guys know more about the codes than you ever will.
@@jpatrick1967 I wouldn't know this was aired, the way this is being released on CZcams I would assume this is a new or current build.
They are in new jersey which is a zone 4. R38 is code for zone 4.
@@isomgmsghs during the geo thermal segment of this video, they mentioned the current year was 2018.
@@isomgmsghs Shame on you then for assuming things, instead of looking up the original air date of TOH season 40.