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Is Cross Laminated Timber the future of Building?
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For those of us not familiar with the topic, it would have been really helpful for the slide at 7:27 to be at the start of the video to explain what CLT is
CLT rocks. The manufracturing process is something to behold - although a plant is expensive one off cost - it is fascinating. There are some Italian factories that produce turnkey production lines. CLT itself is awesome - fire resistent (because it chars then can't actually burn) amongst other features. You can pretty much CAD / CAM an entire house and CNC in factory with conduits etc for all the key power and sewage / water. And then deliver the framework to site....
I'm really mind-blown by your attitude of learning from and welcoming "foreign" concepts. The US tends to be stuck inwards with very little appetite for innovation that doesn't come from there. It's really refreshing to see.
Ridiculous comment.
@@seanm3226 Look at your comment - it is rediculous.
@@seanm3226 LoL. You just proved his point.
Having a great time with folks .You inspired me trying to get Mama on the road.Yours was red mine is blac k,395 Enjoying the content and the mistakes I make .Be well .
I think it's funny that you've had people criticizing European building methods because they're years ahead of us here in the US.
lol 🤣
I have no idea where you saw it. I've never seen people criticize European building standards. Crap builders and trash buildings are everywhere no matter which place you are in.
I am a builder in Australia and when I am explaining a product to my clients I tell them what the product is and explain it pretty thoroughly and I never use abbreviations on products. So I am over half way through this and I still don’t know what the fuck CLT is
CLT elevator shafts and stair shafts can provide big benefits over traditional shaft construction. Great video, thanks for sharing!
I'm a retired electrician who has been interested in architecture since I was about 10 years old this type of construction makes perfect sense to me. Yes it takes more thought and planning at the beginning when you start putting pin to paper but the finished product is far better. I watch all these other countries build modular or complete factory finished homes with better quality than US homes but you still hear the old line " it just won't work here ". My last home was partially factory built in that the stud walls were pre-assembled and the exterior walls had a thermal ply sheeting and windows installed. The major downside was the installers, can't really call them carpenters, had no idea how to use a level or square.
This is cool guys! Such an interesting idea. There used to be solid core plywood which is like a miniature version of CLT almost, it’s like taking a log cabin from the 1600’s which was all thick big solid wood planks and modernizing it. Very fascinating
Wow cool stuff. Been a pretty good all around hands on builder carpenter 45 plus years, old school still going 66 years old. Done a couple of kit type projects over the years. the hardest part is having no down time because of missing parts or parts shipped in the wrong order. Looks fun an challenging. The problem in America is labor
The plaster board is called Fermacell. Great product!,
The exterior walls are very confusing . they do not appear to be CLT but if there is a thin CLT panel behind the osb , it is like nothing i've ever seen in Germany , where i live .
The way CLT is done here , is having panels that are at least 13.5 cm thick with the insulation on the outside , usually wood fiber panels, minimum 14 cm thick then 3x5 cm lattung ( furring strips ) over the solid insulation panels and a facade on top of that .
the interior is left raw to take advantage of the hygroscopic effect of mass timber and acts as a pretty decent mass for heat storage and temp and humidity regulation .
My house is exactly like this and is super comfortable requiring very little heat .
if you look at 1:50, it definitely looks like CLT, unless it's a more conventional stud wall, but with engineered wood studs. Otherwise the OSB seems like a waste at first glance (though I'm sure there's a valid reason for it), since the only function it would be doing on a CLT panel could me moisture regulation.
It's definitely not CLT.look at the window opening . if it were CLT we would be able to see the layers .
as to moisture control , the Panels themselves control moisture through the hygroscopic effect of mass timber . It's one of the main advantages of CLT. Placing drywall over the CLT would cou counter this effect .
i live in a clt house . the walls are left bare , no finish of any kind in order for the mass timber to ' breath' . the insulation is wood fiber panels placed on the outside walls with verticals furring strips on top of the insulation to accept cladding . The entire wall system is about 30 cm thick and is very easy to put together . it's also extremely warm and comfortable in the house .
7:29 is when the explanation for Cross Laminated Timber is given (should have started the video with this).
Make your own videos....it is right in the title
@@daveklein2826 it is not in the title: “CLT is the future for building in the US”.
It looks like they added it to the description, but they still should have started the video with it as well.
@@TimBryan Make your own videos....it is right in the title
@@daveklein2826 I think you’re having a stroke, you should probably seek medical attention.
@@TimBryan I am perfectly healthy, nice try see Skippy
You touch on it briefly, but I don’t think it’s covered enough regarding CLT. It is more than framing, but can be the finish surface for walls, ceilings and potentially floors. All wins for cost and schedule. You can balloon frame a single family home in a few days with fewer joints to detail. With exterior insulation long rain screen screws don’t have to hit studs blind and can be at any spacing. It just seems like a, elegant solution with a big upside structurally, aesthetically, and logistically.
I’m surprised how much wood and prefab is used. 40 years ago they primarily formed concrete and a building like this was pretty much a concrete bunker. Plenty of wood in Switzerland and they don’t clear cut forest but select trees for harvest in s sustainable way. Makes sense to do it this way. Wood is also better in many ways as it easier to work with, flexible, and can last 100’s of years.
From personal experience - if you want the CLT to be your finished interior surface, consider sanding the panels in factory environment and not later on, on site. Painful.
Maybe explain what CLT stands for and why it’s all that
It's in the title.
The Villiage's in Florida are using prebuilt panels to put up houses in weeks instead of the months it normally takes.
The Swiss are so advanced 😁👌👌👌👏👏👏👏👏
Looks like plumbing, electric and air ducts may be more difficult or at least a different method. I’ve built so many custom and remodel projects I think CLT will have its challenges.
He did mention preplanning, but I would like to mention change orders.
I wonder the same. I gather they can rout in pathways for small stuff, like electrical lines. But plumbing and drain lines seem like a bigger issue. I've designed enough commercial projects to know there are typical design solutions that avoid these issues. But for your single family home in the USA, I'm not sure those commercial solutions are appropriate. Our current system of spaced joists and studs allows for A LOT of flexibility in plumbing runs, risers, etc. As a residential designer I highly value that flexibility.
That CLT as a detail... I don't know the name of it, but there is a type of wood product where they glue a bunch of pieces of knot wood together. It's supposed to be just a cheap wood you paint, but I threw a clear finish on it and used it as a table surface.
Great to see more information and details on CLT... I'd love to build a mountain house using CLT for a very efficient low maintenance second home.
How do you figure it's efficient?
@@court2379 minimal materials and waste for a remote site since it is completely designed and 'fabricated' before arrival
@@stavrosTX So what if all the waste is at the factory instead of the job site. It's still wasteful. That the product has higher dimensional standards also means the rough materials have to be trued up before assembly and again after, making even more waste or culls/rejections of imperfect boards.
I agree though from the builders perspective it makes for a low waste construction site. Both materials and probably labor.
I just don't see the value of this over something like SIPs that have way higher insulation value and are strong enough (CLT is obviously very strong, unnecessarily so). They would make a good floor, but again the composite beam formed by TJI joists and OSB subfloor uses far less material, lower quality wood (than solid mostly clear lumber) can be used, and produces an excellent product for most homes. And there is space for better insulation. The strength of CLT just isn't needed in a residential house but for special spans/applications.
@@court2379 I quote you; ''So what if all the waste is at the factory instead of the job site.'' The ''waste'' are at a very minimum because materials do cost a lot and they do plan a lot about to use every single piece of material. At the end of a week, not enough to fill a single garbage can ;-)
The grey board looks not cement based, I think it is something like Fermacell board (fiber gypsum board ). Maybe this is Knauf Vidiwall. Everything diffuse open.
I always really enjoy watching your videos. I actually seen you not to long ago at an event that Cape Cod Lumber put on. All info is good info. I take a lot of your stuff in. Obviously there’s a market for it as well and not every job can be handled in the same manner with the same detail as far as scope of work. My question is do you think you can do a video on how you approach a customer with these details? And how your bidding process goes? I’m sure a lot of your clients are seeking you out because of the detail you put into things. Again I know it’s another market but how can you break into this type of work and begin to bid it? You and I know that you can have two bids for same job and have one be at 600k and the other 750k. What’s the selling point to sell to owners when typically owners are looking for the best price and there not as educated in the process as we are being in trades? It takes time to educate them so is that something you figure into your overall cost? Any advice and help would me greatly appreciated. If it helps S Kelly who’s been featured on one your videos is a very close friend of mine lol. Thanks for reading!!
Given that landlords cannot even be trusted to maintain traditional buildings I will wait a good 20 years before I am willing to live in a CLT building
This is Switzerland, not US of A mentality ;-)
So the interior and exterior siding, structure, and insulation all come prebuilt in one panel correct?
What u can also mention is that raw clt walls provide a much nicer room climate than any other wall because wood regulates the air moisture by itsself and therefore the air quality in the room feels much nicer
exactly . the walls must be left raw to take advantage of the hygroscopic effect of mass timber. i live in o;e of these house which is used by my wife for her business . Every client that comes to the house remarks on how comfortable it is .
@@siriosstar4789 i think it's also the fact that even mass timber doesn't absorb heat as quickly as sheetrock or a bare brick walls, meaning it reflects a lot of the heat from the room and the people back.
Conduits? No interior paint? Residential construction is for the enjoyment of its owners, not the convenience of its builders.
this building plays in an entirely different league than anything youll ever find in the US. US residential buildings are honestly a joke.
If anyone has a project in the US they are interested in using CLT for, please reach out to us! We have been prefabricating CLT in the US for 7 years. Our newest fabrication building was the first industrial CLT building the the US.
Pretty vool
How would someone reach you? Looking to build in about 2 years!
it has been a long time since we saw you last ! so very very glad you are still here in Rockwood :)
How fast could fire burn cross-laminated timber?
It become char instead of ''burning''
Planning on using clt on my sauna build.
I am the CLT commamder!
THANK YOU! I was hoping to find some Jay & Silent Bob comments here, and you didn't disappoint! xD!
Swiss carpenter wages run $40/hour, so minimizing site work pays off.
Seems like CLT is just like an Ikea panel but for large buildings instead of furniture. Is this accurate to say? I'm not in the construction industry, just a person who likes to know how things are made.
The only ''ikea'' possible relation is the ''put together'' but there is absolute no possible comparaison with the very high quality of the buildings method and material use to build
Go to 9:09 to get the definition of CLT.
What is CLT?
Cross laminated timber
Its really not most people cant afford it. The certifications for using lower grade wood that just happened in that last year or 2 will help a lot. Using pp gf lpp and spruce instead of just douglas fir. Just because europe has no trees so cost isnt as big. We are gluttens with trees so were a long way from there. A average home will cost 4 to 500 thousand to build out of clt. NOT AFFORDABLE
Dont they cost that much stick built
Looks sweet! Do we have affordable design people who can design and stamp in the U.S. for residential?
What is CLT? bailing out
Doug is like, why RRBuilding keep showing up in the background
That fart looked "intentional".
What does CLT stand for ?
Cross Laminated Timber
@@Mood_Inc thank you
I AM THE CLT COMMANDER
Instead if Gypsum board?
No - that I believe was in reference to a cement-based board. The CLT is structural.
I can never find clt
"Why are homes here in the US not built to this standard? *looks at cost to build* "Oh..."
It's quick and high quality though. And time, as they say...... is $$$. Quick AND high quality in the US is hard to come by, it's either one or the other but rarely both.
because Americans are to cheap and the government doesn't require it
Hahaha. Because yours are built purely to make money? Bottom line. Built to satisfy the minimum possible acceptable standards?
@@catabaticanabatic3800 The buyers define the market.
Cross Laminated Timber
Wait for it... 5:29
Hi, what's the difference between CLT and SIPS?
CLT doesn't have insulation and can be considered more like structural sheathing panels, while SIPS does contain insulation that is sandwiched between plywood panels.
Cross Laminated Timber perhaps?
Dosen't seem that diffrent than the sip systems available in America unless I'm missing something
So is the building method born of advanced methods or necessity, at the end I see your leaning on what looks like an 8" or 200 mm wall. This screams short building season unless you do it inside a controlled environment hence a factory. The construction method seems to be brought about by what I would call a short assembly time. If your building multi-story buildings time would be of the essence in an environment where you need 8 inch walls and the sun shines a limited amount of time.
-MG
I think it would probably make more sense to have a tent of some kind to temporarily erect over the building site, temporary aircraft hangars are fairly ubiquitous.
How is CLT - cross laminated timber for 99% of people watching - any different from plywood?
I bet they burn fast.! Looks like petroleum products!!
Termites and water ought to have a great time with it
You build to prevent those things
@@NSBuilders - Would it not require that one build extremely well? It would require specialized products ... Perhaps boric acid infused wood or similar.
I am not a builder. My understanding is limited only to my imagination; but not by experience. I would be very interested to hear why we don't see more use of concrete in building, (eg, SIPs or ICFs, etc.)? Among other things, it seems many of the problems inherent to wood are excluded; and, they are not as prone to destruction by insects, hurricanes or water. Thank you for taking the time to put your thoughts. It is valuable to me. I am trying to consider the best method to build here in the Caribbean.
It looks hella expensive. I don’t see it gaining mass adoption in the US.
because Americans are to cheap and the government doesn't require it
Why do you think we don't build with brick anymore despite it being better for a million reasons?
It's quicker, easer and cheaper to use ICF!
I prefer Butler Buildings.
What does "CLT" Stand for.? I don't speak abbreviation...
The video's description says, that the material is cross-laminated timber.
One of my frustrations is how we in the U.S. aren't taking advantage of newer technologies like this, & doing more building more panels in factories to drive down cost & improve quality!
We do already. SIPs, ICFs, there are a few Lego style block systems, many log cabin style premilled systems, etc.. The problem with all of them is they cost more. The US generally isn't willing to use them because the builder or buyer isn't planning on keeping the house long term and the subsequent buyers won't properly consider the value of a better built home. It won't fetch much more on the market, so there isn't a good reason to build that way by most builders. It just reduces their profits.
I actually think SIPs are a better wall system as CLT uses too much materials and has poor insulation value. It has a place as flooring replacing concrete though. They should make panels with 3in of iso foam sandwiches in the middle.
Its incredibly expensive
your frustration should not be that the U.S. aren't taking advantage of newer technologies it should be that people are to cheap and dont understand the value
@@toucanvanbeak 🤣
@@daveklein2826, definitely!
What's CLT?
Cross Laminated Timber
And if CLT was adopted enmass lumber prices would definitely go up cancelling any cost savings by not finishing etc
Aaaaaaand someone gets it.
I don't understand how gluing wood together is stronger? How does CLT "store carbon", especially if it's glued together? How, considering the lamination, is it less flammable? I'm skeptical entirely. I think cob housing is the future, not this. This sounds like a greenwashing campaign to me.
If you don't know that glued wood is strong you may want to look into laminated wood - plywood being a common variety. The properties of the glue as well as density will impact flammability. Obviously there are alternative materials - like cob - with its advantages and disadvantages, which this video was not about.
Not until the vid was nearly ended did you elucidate the meaning of the title acronym. Everyone who is compelled to pause the video and look it up elsewhere should dislike this video on that criteria alone.
SIP panels have been used in the USA for decades dude...
SIPs aren't the same as CLT.
With consideration to building regulations for every regional area, and the types of conditions each faces, it is unlikely that such panelized construction except as an overlay, will become a standard. No proof that such construction can withstand weather conditions of tornados, hurricanes, or earthquakes, fire and floods. And will never be used for major multistory construction. There is also the consideration if external finish applications wherein small imperfections can cause water penetration which if not immediately checked, will easily rot any type of a USB board. Especially in an acid rain situation. Then using it for elevator/ stairwell construction is inadvisable as core materials must be able to withstand greater compressive strains. While cross laminated studs are being accepted for certain uses Eg: kitchen walls where cabinetry will hang etc, most will not be. Willing to pay. A 30% premium for products that have not proven a durability over other construction methods.
We have high rise buildings in Australia using CLT. Onsite construction time is reduced, in crowded cities, less concrete trucks, noise etc. Atlassian is having a 40 story hybrid building built in Sydney. OSB is not a common board here though, so some of your objections are not relevant. Watching TV footage of American "stick" houses after hurricanes implies that stick construction is not that good anyway.
@@peterblackmore7560 how many covid vaccines have you had?
I quote you; '' No proof that such construction can withstand weather conditions of tornados, hurricanes, or earthquakes, fire and floods.'' These are building build in Switzerland for Swiss conditions. Don't say a word about 2x4 stick build house to withstand tornados, hurricanes and every other weather condition as we can see on TVNews, very sadly, too frequently ;-)
Came on in the US homes are built with toot picks and cardboard.
Just need a crane to build your house.
CLT looks like a sponge for moisture. Imagine your roof was damaged due to a storm event and some rain managed to enter the building. Good luck from there.
If you have no idea what you are talking about you should really not comment
Really? C'mon. This is Switzerland, the home of quality. Do you honestly think they build to fail. Do your homework. These people take pride in their work and it shows. They don't just mouth off. Like some countries. They develop and move on. They improve and don't build the same way as 50 years ago.
@@catabaticanabatic3800 AMEN
@@catabaticanabatic3800 Catabatic and Anabatic both local winds. You Swiss obviously don't believe in free speech. Whether expert or layman like myself I am entitled to my opinion. My experience with this type of product (albeit it may be of a totally different quality) is that once moisture enters - you are off to the races. All I am expressing is my past experiences and I am entitled to do this on an open forum like TH-cam. If you don't like that then only post on a forum for those limited experts.
Such a poor explanation of what CLT is. Does not show any close up, any cross cut view, lots of far away shots of general construction. Guys are supposedly at the cutting edge, but where is the detail. Lots of wasted time here.
make your own videos
This is only appealing to builders who aren't looking for quality - only their bottom line (faster/cheaper).
It's a shame that past standard building materials (hardwood floors, rock, etc) are now becoming luxury items.
I am going to build a new CLT HOUSE in NEWPORT BEACH SOCAL
You should check out how they build in both China and India, such crap.
Why don't you talk about the great benefits and the job security that construction workers have , the conditions and the safety practices ,the payed holidays,....
Construction workers in the USA they are not different than slaves or gypsies,
ù
I hate this stuff, it’s hideous, disallows creativity and I really don’t think it will age well as it is just treated lumber
But but but, I thought the US was the best at everything. Residential home construction in my country is pathetic, cost, cheapness, dry wall palaces constructed for price and profit.. Try to find a builder who cares about thermal efficiency for less than a million. Yet alone manufacturers trying to innovate products like CLT. I give US builders and city planners an F. Forestry under threat from global warming, our children losing work ethic, corporate greed now dominating the rental market, conservative government allowing unregulated growth like Houston, liberal government over regulating solar like California. It’s hard to have any optimism in this broken world, other than Switzerland. When have any of y’all seen an all Caucasian construction crew, you might have a few owners who are maga white, the rest being immigrants from south of the border.
This video was very poorly done. For showing off something to the uninformed. You proceeded to play the whole video spouting out how great a acronym is, meanwhile pointing out something that looks like plywood. Heck the only blurb was giving a small description in text towards the end of the video. Extremely poorly done. We still know practically nothing about this “amazing” material. This was a zero value video.
Thanks
That looks 3rd world in a 3rd world country.
Crap.
oh so that's how you say it. Say each individual letter = C-L-T. I was always saying as a word. My wife was right. Its not said as a word. That's too bad. What a shame
Cross Laminated Timber