Framing A Roof With I Joists (Shed Roof Framing and Sheathing)
HTML-код
- Опубликовано: 5 фев 2020
- We chose I Joists to frame our roof out because they can span long distances without intermediate supports. We also wanted a shed style roof, so there is a single pitch which makes using I joists a lot easier.
We still used zip sheathing to shearh the roof that way we have an impervious water barrier from the get go.
make sure to leave a comment letting us know what you think. And make sure you are subscribing to our channel to see more! 
Хобби
![Sean Rii, Karyon, Sharzkii - Taungule [My Love] (Official Music Video)](http://i.ytimg.com/vi/eJoMuypbSzQ/mqdefault.jpg)
Nice work guys. Y’all work well together!!
Thanks!! Very useful and nice video :)
Thank you! I'm glad we were able to help!
Well done. :)
Thanks! Glad you enjoyed it!
I just WISH I could send you a sliding miter saw. Game Changer! Thanks for the great vids, man!
I can't tell you how long I contemplated buying one, but we didn't have power until a couple weeks before we moved in and I didn't want a battery powered one! Thanks for watching!
Thanks...congrats...!!!
Thanks for watching!
Several times you referenced the Essential Craftsman regarding a good way to bevel a top plate, and I agree his stuff is just incredible (and you also did a super job by the way!). Do you have a link to the video where he cut a beveled top plate? I've searched and can't see to find which video of his has that process.
I don't know what it is off the top of my head, I know it was during his spec house build while they were putting rafters up on the front of the house.
Thoughts...cutting the wall stud at the desired angel rather than at the top plate.
Need your education here.
How did you cut the beveled top plate?
Thanks a lot!
Using a table saw we put the 2x6 on edge and ran them through at the angle we needed. We started with the blade only cutting in about half an inch then moved it up incrementally.
Once it can't go any higher we flipped the 2x6 and cut the remaining side. It took a while to do. You could also use a couple of 2x2's or 2x4's so you could cut through the whole thing in one go
How did you cut your beveled top plate? I’m assuming you did 3 top plates in total? Really enjoy the video!
Yep three top plates total, and the bevel was cut on a table saw (and definitely was not the safest way to do it.)
Ah ! The feeling of DYI no one to blame or call.
Haha I like it that way, I don't have to trust people I don't know to do the work, and then I can only blame myself when stuff goes wrong!! Thanks for watching!
Thanks for all your videos. They are very helpfull. I have a question about your beveled I joist top plate. Did your beveled plate add any height to the joist or did it just fill the space between the top plate and the I joist? I'm not sure the best way to make the bevel. It would be the simplest if you just made it to fill the void between your double top plate and the joist but I don't know if this is kosher. Thanks again!!
So short answer is it ads a little bit of height, but it's fractions of an inch. We cut ours on a table saw and it was pretty sketchy but worked. You could always use a few 2x2's or somthing and cut a continuous angle on them that way you could cut through the whole thing in one go. The essential craftsman did the beveled top plate as well, you may want to check his video out as well I believe he did somthing slightly different than us.
Glad our videos. Could help!
Somone else just commented that they were going to try and bevel the studs themselves not the top plate which would be way easier to do. I'm not sure if this would be allowed by code (I don't see why not) but if it is it would be a fantastic option!
I guess Im randomly asking but does anyone know a tool to log back into an instagram account?
I was stupid forgot the account password. I would appreciate any help you can offer me!
@Dominick Augustus Instablaster =)
@Diego Trace Thanks for your reply. I found the site thru google and im in the hacking process now.
Takes a while so I will reply here later with my results.
Why did you need extra pieces of ply on top of your gable wall's top plate, to get the look out's level? Would they not just be level already?
So long story short we should have beveled the second top plate on the 8ft wall, not added a beveled top plate on top of the 2 already there. Because of this error we had to use the plywood shims under those peices to make them level with the rest of the I joists.
Hope that answers your question!
@@PootsPastures Perfect answer. Understood. Thanks!!!
I am planning on using similar wood i-Joists for the roof on an addition. Would you say it was very difficult for a single person to lift one that is 24 feet long? I am trying to design this project so that I can do most of it by myself.
You can do it by yourself, it is just way easier and safer with two people, it would be worth having a friend come and help you.
Thanks for watching, let me know if you have any other questions!
@@PootsPastures Thanks for the reply! The project is still in the planning phase, but I am committed to using the i-Joists.
Thay are great, I'm very glad we used them! Good luck on your addition!
They are light they just sway when you carry them .
@@k5blazerman956 Thanks for your reply; light weight is good. I have the engineering work completed for the new addition, but it will be a while before I start construction. (In Florida, an engineer has to participate in both commercial and residential these days.)
Any roof venting issues with the solid blocking in between the roof joist?
We did not vent our roof, to accomplish not having to vent our roof we had 1" of closed cell spray foam directly under the sheathing. This is non-permeable to moisture and makes it so that moisture will not condensate on the under side of the roof. Thus we didn't have to vent.
Let me know if you have any other questions!
What is to prevent uplift and tearing your whole roof off?? No Hurricane Simpson Strong ties?
Instead of the old school hurricane ties we used structural screws to connect the joists to the double top plate. The screws are rated for this and this method is approved by code.
Thanks for watching!
Hey great video, was wondering : with all that blocking between the i-joist, is there any path for ventilation ?
If you are talking about the attic ventilation, we have an unvented attic, sometimes called a conditioned attic. The reason you vent the attic is so that both sides of the roof sheathing is the sametemperature so that water doesn't condensate on it. With a conditioned attic you either have exterior insulation so that the sheathing is the same temperature as the inside, or you can use a moisture barrier. We used 1 inch of closed cell spray foam to insulate the underside of the sheathing. The closed cell foam will not allow moisture to get to the sheathing, and insulate it from the inside. Code requires a certain percent of your roof insulation and 1" met the requirement for our area. I hope this made sense and answers your question! Thanks for watching!
Gotta quick question. I'm about to submit plans for a house with a single pitch roof that spans like 26ft. Plan to use WI80 I joists. Will it pass code to have the tops of my studs cut at an 18.5 degree angle for both of the bearing walls? This is the only video I can find of studs being cut like that. Thanks man!!!
Watched it again, must have seen it wrong. Is there anyway you could just cut a wedge to go directly beneath just the joist itself instead of spanning the whole length of the top plate?
I think you might be able to get away with cutting the studs at an angle, not sure how big of a locality you are submitting to, but if you call them or go into their office they would more than likley be able to give you the answer. I don't see where that would be an issue though seeing as you angle studs when building a rake wall. And you could also do a wedge the trick would be getting it to stay in place without moving which may require nailing or screwing it to the top plate without splitting it.
I would talk to them and see if they would let you bevel the tops of the studs I think that's an awsome idea. Sorry that's not a super great answer, good luck with your build!
@@PootsPastures
Thank you for the info!! Will call them tomorrow but the more I think about it the more I realize that a beveled 3rd top plat would make life alot more simple. Thanks again!!!
@@kirtd702 how would you bevel the top plate? Circular saw? Table saw?
I’m about to do the same thing but I’m struggling to figure out how I will bevel the top plate
@@salp541 they just had me cut a wedge as wide as the bottom chord and use subfloor adhesive to glue it snug between the top plate and the bottom of the I joist. Then predrilled and drove ledger loks up thru the top plates, thru the wedge and into the I joist.
This might be a dumb question, but what is the benefit of using these I-joists instead of 2x12's? I'm looking to do a similar type of structure
The I joists are engineered so you don't have to worry about quality of wood (they are perfectly straight). You can also have larger clear spans than with traditional lumber (basically we may not have been able to span 20' with no support in the middle with dimensional lumber but with I joists it was no problem). Another benefit is their weight. There would have been no way I could have moved a 20ft 2x12 by myself, but I was able to move the 20' I joists pretty easily. Honestly my first choice would have been floor trusses because they are a little wider, and can be a little stiffer at my length, they are also trusses which means you don't have to bore holes in them to run mechanicals, but no truss company would respond to me. On the other hand you can just order I joists from pretty much any lumbered.
Hope that helps!
@@PootsPastures awesome, thanks so much for your fast response!
What are the dimensions of your home? I'm planning to use the zip system as well.
So how did you insulate the roof? Did you use a mini split for a/c and heat?
I will be doing a lot of the work myself so I really appreciate your video and your advice. 🤝
The house is 20x32, upstairs is 20x16, it's a little less than 1,000 sqft.
There's a couple ways you can insulate, one is having a vented attic like normal so there is a space between the insulation and roof sheething for air to flow. This keeps the sheething the same temperature on the top as the bottom so condensation doesn't form on the bottom of the sheething. The second way is an unvented attic (this is what we did). Because you don't have any air flow under the sheething you either have to use exterior insulation or you have to use a material that does not allow vapor to reach the underside of the sheething. Depending on your climate zone there is a certain r value that is required to be exterior or non vapor permeable. In our area it's about R5. We used 2" of closed cell spray foam on the underside of the sheething as a vapor barrier. I didn't want to have a vented crawlspace especially with our wild fire risk in our area.
We are using our minisplit for heat and ac, but eventually we want to add a wood stove for heat and use the minisplit for supplemental heat.
Good luck with your project it is really rewarding doing the work yourself, and if you have any other questions let me know!
@@PootsPastures man, I've been binging your channel and I love it. Did you put additional insulation in the ceiling to supplement the spray foam?
I'd be interested in a breakdown of your solar setup. I'm having a hard time visualizing what I'm going to need. I'm in Texas so it gets well over 100 degrees in summer. I don't know how I'll manage the a/c system
Yeah we have a video of the insulation but I think it ends up being about r50 between Rockwood and the sprayfoam. I don't have the solar up yet but when it does go up there will deffinately be a video!
Also check out the build show with Matt risinger, he builds in Texas and has some good videos about air conditioner set ups. But as long as the system is sized for your space and climate zone it should work fine
How did you do the ceiling for the room below?
You can just screw the dry wall directly into the joists. The drywall is factored into the load calculations. Hope that helps!
Why I beam vs 2x12? Curious for my own build? Never heard of I beam rafters
So where we are we need a 40 psf snow load, and from all the charts I read it was virtually impossible to get 2x lumber to clear span 20ft with that large of a load required, and the low slope we have (2.5:12 pitch) which is really flat. So just like I joists are good for clear spanning floors they work the same way with roofs. I would have used trusses but every company I contacted to design them wouldn't answer my calls or emails and you can just order I joists from any lumber yard.
Another plus side is that they are alot lighter than dimensional lumber and since it is all engineered wood they are perfectly straight.
Hope this answers your question!
That was very helpful thank you for the thorough explanation. I'll certainly look into it for my build.
where is the airflow for the roof?
How did you cut the beveled top plate?
I used a table saw. It wasn't the easiest but it worked. If you watch the essential craftsman videos he cuts a beveled top plate a little different and it seemed easier.
What episode was it on the essential craftsman? He has like a million episodes. Lol... just asking because I really want to check it out. I am having the same issue and this would solve it.
What is the length of the joists you used?
We ordered 24 foot joists and cut them to about 23 feet and 8 inches which gave us about a 20 inch overhang on each side.
Hope this helps!
@@PootsPastures Thanks for replying, and so quickly! Were you able to get them from a big box store or did you have to order from a lumber yard or specialty place?
You can get them frim big box stores, you just have to go to the "pro desk" or whatever your store calls it. You can find out what brand yours carries then look up all the load and span charts to see what size you need.
@@PootsPastures Thank you so much! You guys did a great job. I really appreciate the help!
Is this a 30x40 house?
I appreciate the video. Could use a bit of work on construction lingo tho lol. Perpendicular to the earth=plumb. Keep it up guys!
I'm not a carpenter but I do know plum! The minute the camera starts recording I lose half my brain cells! Thanks for watching
@@PootsPastures hey I feel ya there my guy lol
I don’t think that zip is strong enough to hold the gutter on
We will be blocking behind it, to support the gutter. Thanks for watching!
Funny how AZ looks exactly like Michigan
Really? I've never been there, but I bet y'all get a lot more rain!
@@PootsPastures yep. rain sleet snow hail etc.
you say that joist was heavy try that with a steel joist
That's what crane's are for lol!
Sorry...hard to watch while wondering when you will discover "saw + wood + eyes = bad news".
I joist are crap