Simple Explanation About Roof Truss Design, Parts And Assembly
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- Опубликовано: 23 апр 2018
- www.homebuildingandrepairs.com... Click on this link if you're looking for more videos about roof framing, new home construction and building repairs. This video will provide you with about the simplest explanation for the assembly of engineered wood roof trusses and all of the parts necessary to build and frame the roof. Don't forget to check out some of our RUclips playlists if you're looking for other videos also.
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I like your illustration 👍. I'm a metal stud framer....those truss plates is like a slip plate. A building breathes so it's necessary to have slip joints on commercial buildings.
I use an 8” tamper to set those truss plates. Works great!
Thanks for the tip!
Hey Greg can you do a video on how to join 2 fascia boards together when you have a different pitch in each plane? The front pitch is 4/12 and the rear is 8/12. Sub fascia and lookouts is 2x4s. The facsia is going to be 2x8 cedar.
I put it on my list, but if you can send me some pictures of your project. You can get our email address at the website.
Great simple video. Thank you!
Glad it was helpful!
@@gregvancom It was! I transferred over to a building materials department and this has helped me be less intimidated on creating/ordering trusses for our guests.
I’m planning to build a small shed..this video is helpful….thanks for sharing.
You are welcome!
I'd love to have a detailed book like your stair building books about plywood gusset truss building. For someone like me with no truss manufacturers around, I'll buy that in a heart beat.
I would love to make a book, but don't know enough about the engineering part to create one. I will be making a few more videos though about roof trusses, so for now to be continued.
Always grateful to the accurate info/videos you provide Greg.
And I always appreciate viewers like yourself leaving kind comments, thanks again for watching.
Your a genius, this video is the best! Thanks
Wow, thanks!
Well done, you answered almost all of the questions I have about trusses. Do you have any other videos on the various truss types? Purpose, cost, etc. Thanks for your attention to detail.
I do have a few more at our website and glad the video helped. If you're looking for a specific video, feel free to provide me with an idea of what you're looking for and I will put it on my list of videos to be made in the future.
www.homebuildingandrepairs.com/framing/roofs/index.html
@@gregvancom Love your video. I watched it b/c I have a covered patio with an 'A'-framed truss structure. I want sooooo badly to hang a heavy porch swing couch to the bottom truss structure but I am so afraid of buckling ... maybe it's better to place a metal bracket system way up higher inside the truss to distribute the load ... (Ohhhh I wish I would have listened better in Physics 11 & 12)
Thanks man!
You're welcome and thanks for watching.
what if my bearing points come in 5" on each side? We ordered trusses but modified the plans extending the wall out (to replace demensions of a stucco on brick wall)?
This was spot on I Build trusses for a living. The only thing I would add is Trusses can be Built all the way up to 2x12 and the Trust plate it’s just called a plate and the heel is called a heel wedge.
If there's one thing I can say about the construction industry, it's that they have plenty of words to describe their products or parts of a product and sometimes it gets a little confusing. Thanks for sharing.
I have a question for you since you build trusses for a living. Will a roof truss ever bear in the mid span of the bottom cord. mid span meaning, there is no metal gusset plate or no joint
I asked this question a moment ago on another one of your posts. Will a root truss spanning an open area of 35 feet be self-supporting? Pitch is 7/12
In this video are any of those interior walls load bearing? Where those two joists butt up and are connected with that metal plate. Is that a load bearing wall underneath?
In my example the only load bearing walls are on the perimeter of the building.
Good job
Thank you for explaining so clearly the basic components. Question: on an attic full of trusses, my only way so far to walk through it is by holding onto the webbing crossbars while I reach another joist. Sometimes I go under a webbing crossbar and sometime I have to go over (leaning my whole body flat on the crossbar). I wonder how safe is that or if I'm risking the roof collapsing on me? I'm just 160 lbs and trying to get through the attic to look at either vents or leaks, etc. Or what should I consider before screwing some 2x8 across the ceiling joists? Insulation is the paper cellulose kind, I'm not trying to make a floor all over, just something to walk or crawl across if holding onto the truss webbing is not safe.
How old is the house? Is there any part of the framing that doesn't feel secure when walking through the attic?
gregvancom, It is just 11 years old. I don't hear cracks or other suspicious noises but I'm also not sure what other safety signs I should look for. Maybe my worry of the roof collapsing is an exaggeration but I do wonder if I may be overstressing some joints or the structure of the beam itself. I'm thinking I would like to try screwing a catwalk with 2x8. Something skinny to not cover all the insulation. It's there anything else I should consider before doing that? Thank you!
Yes, sometimes the roof trusses aren't designed to support additional weight like the catwalk. I don't think you will have a problem with it, but at the same time couldn't guarantee that you wouldn't. If your really worried about the roof, you could always take detailed measurements of the roof truss to a roof truss manufacturer for more information.
gregvancom Thank you so much for your opinion. I won't hold you responsible for anythin wrong, don't worry. Thank you for taking the time.
You're welcome and good luck with your project.
Thank you so much!
You're welcome!
this channel is awesome
I'm glad you think so and thanks for letting me know.
I'm building a carport 18×18 if I buy trusses 4×12×18 I know the 4×12 is pitch but is the 18 describing wall width or is that peak down to drip edge ?
If you are talking about the truss design, then you would need to check with the manufacturer. Let me know if you can't find what you're looking for or feel free to email me a picture of the product or thinking about using.
Hello nice video, how can I get a truss designed?
They are called press plates and are applied with a hydraulic press.
Does the truss bottom cord have to sit on the outer wall top plate? Or can trusses be shaped like a letter A with the bottom cord half way up to allow a taller ceiling in the center, like for a garage?
Hi, is it permissible to add a continuous lateral brace to the webs ties that are under tension. The same as we do to webs that are in compression. My trusses were exposed to the weather for 2 months and some of the webs under tension bowed. I straightened them and fixed using CLB. But have not found any docs online showing tension webs being braced.
You will need to check the a roof truss manufacture to answer your questions.
@gregvancom I must have picked the dumb truss manufactures, they couldn't tell me if a web was in compression or tension
Does this type of truss need a support wall? When it has the center connector?
Most roof truss designs usually sit on two walls and those walls are usually located at each end.
Hi, I wonder if you can help me.
I have roof of my garage as Fint Truss (W webbing). I would like to make spce as a livable loft bed. I think, forgive me for being a back seat driver here (I am also a female healthcare professional by trade), the existing trusses have to be altered into a sort of Attic trusses in order to create sufficient space of vault. Do you think this is feasible? I also welcome other suggestions. Thanks a million. God Bless
I'd like to have a covered patio and stay on the same roof line. Can a truss span 15-20 foot as long as there is support on the end like a footer and header?
I've seen them span longer and over 30 feet.
@@gregvancom thanks for the reply
Thank you
You're welcome
Thank You Sir
Most welcome
Hello sir , I enjoy your video
Can you give me a example of how you would make a mono/skillion roof truss
: all members 2x4
: webs required & what angle they should sit
: run is 5m & top height is 750mm
cheers
I would love to, but I don't provide engineering information, because I'm not an engineer. I also don't recommend you making them yourself and you should contact the roof truss manufacturer.
gregvancom i understand , thankyou
Hi,
I have an cathedral ceiling with a trust roof as shown in your video, would I be able to remove the wall that separates my kitchen from my living room?
I cannot provide you with structural engineering advice, but I would suggest visiting our website and checking out some of our engineering and framing videos. Remember, some walls are providing lateral or side-to-side support for a building and cannot be removed.
Okey, thank you for responding!
Pls! How do I design a simple N shape mono pitch steel roof truss under gravity action???
Tie plates with structural 8d nails might be slower but I think it’s a stronger connection
I am a truss fabricator and know about the physics of trusses This doesnt make it stronger if anything it makes it weaker because the nails essentially split the fibers in the wood and the point of the plates is to connect the fibers of the webs and cords. While they may make it sturdier it is not going to flex before it snaps like a truss is designed to do
@@johnr8915 I’m also a truss fabricator and disagree with you
Say someone had a 30ft garage and wanted to buy a truss with an overhang. Is a 30ft truss for a 30ft garage or does a 2ft overhang require a 34ft truss? No one tells how to order a truss. Is the 30ft the span they cover or does that 30ft include the overhang?
If the building is 30 foot wide and you wanted 24 inch overhang at each side, then you would simply order the trusses that way. In Southern California where I'm from, you take the building plans to the roof truss manufacturing company and or explain to them exactly what you're doing and they will provide you with the correct sized roof trusses.
@@gregvancom i was hoping to avoid special order. Guess I will visit a big box store with a tape measure. Then I will know if the advertised truss size is total length or the size of frame it will fit over. Pretty basic info for no one to know.
@@stevenhatfield1961 your big box will use 30 ft for the width of the truss you need.
the explanation helped me, but I will be happier if you up the voice in the next occasion, because I heared only small voice even I've up the volume till 100. Thank You
I do apologize and have resolved the problem on future videos. With that said, I can't do anything about this one, but if someone else knows how I could fix it, without removing it, feel free to share it with me.
Can you add plywood boards for light storage?
I've done it myself, just don't suggest putting a lot of weight up there. I had a 20 foot by 23 foot garage with less than 300 pounds up there.
@@gregvancom how would you reinforce it?
The connecting plates are called "Gang-nail plates"
They are called gussets 2:17
Gusset plates
Good luck 😆
2:30 - I've heard them called gang-nails.
Yes, me to.
That’s what I’ve always called it. But then again, I’m old.
The metal plates are called gussets.
Their called "Gang Nail Plates" and would need a press to set them properly
Thanks for letting us know and the machines used for the pressing the metal plates into the wood make all the difference in the world when assembling roof trusses.
In indy we call them gussets or Simpson ties
2:18 "GANG-NAILS" is what we call them
Trusses as opposed to what?
I'm guessing roof rafters.
Started out good with the “basics”, but the longer it goes the less attention I can give
3:01 "wouldn't recommend"??? hand-banging gang-nails is IMPOSSIBLE! It takes tonnes of pressure to press trusses!!!
We call em gang nails
Hi Greg what's your email?
Go to our website and click on the contact link at the bottom of any page. A link to our website is usually located in the comment area of our videos.