Engineering an Open Attic with Site Built LVL Trusses
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- Опубліковано 4 тра 2020
- On this Build Show we will take you into the coolest Attic you've ever seen with Matt's Engineer on his personal BUILD. Whit Smith,PE is a second generation Structural Engineer that has worked with Matt and his team on many complicated custom homes. Whit will show you how he designed this very open attic which is actually a truss but looks like a traditional rafter setup.
Huge thanks to Whit for coming on the show! www.smith-structural.com/people
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Smith Structural Engineers was founded in Austin, TX 30 years ago. They specialize in commercial and residential structural design. SSE is currently focused on serving their established clientele, but they appreciate you taking the time to watch the video and hope you find the information useful for your next project.
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I'm surprised by this engineer calling this a truss. If's supported at the ridge so rafters are in a simple span. Even if it were not supported at the ridge, it would still work as standard rafters in roof framing. He also talks about the tie to the wall down to the foundation which is nothing special--without discussion of ties to studs and to the foundation for hurricane (which could be a useful addition to mention) or lateral bracing shear transfer from the top plate to the roof. Baffling.
who stole the attic walls?
A diagram would have helped me actually understand this……
He built the whole house with LVL. Can't take that house down with a rocket lol. What happens when you let an engineer have free reign and build your home LMAO!
Basicly every roof is built here that way...
stepped back in time to when they spammed osb everywhere
I wish smart/quality home design came in affordable, modest-sized houses. Everything is either built as cheaply and quickly as possible or it's a million+ dollar custom mansion. No modest, quality, ~2000sq/ft homes seem to exist. At least not in my market.
As a builder, in Australia, I always try and pitch a roof similar to this. Trusses are such a waste of space. My clients love it and I can upsell extra rooms for them, for more profit.
Now do this but without a joist to hold the walls together.
My engineer. Pretentious a bit. Simple solution that just lets us slap in LVLs LAMS BOX BEAMS TO EASILY SISTER TO our EXISTING. STEP BY STEP AS YOU WISH FROM ONE END TO THE OTHER - AS THE 94% CAN ONLY AFFORD TO DO. ONE long/bolted STEEL STRONG BACK 1/2" x 3" it flexes. Slipped in beforehand.
I’m over here in the UK and that is exactly the same style attic we have in our 1923 cottage. They knew how to engineer back then quite well also : ) We ended up insulating in between the rafters, then plaster-boarding and plaster and paint. We left those collar ties along the top exposed because the wood was nice and rustic. Nice video.
We did a very a very similar roof truss system. Our designer had us put a 2X8 flat on the attic floor on top of the osb sheathing at the outside edge and then attach joist hangers laying flat. This putting up the rafters was easy because that end fit right into the joist hanger and did not move or float around while you secured it to the ridge board
I'm glad you mentioned at the end that the attic was going to be a conditioned space for your HVAC. That is good for people to understand. Good video Matt.
Always a pleasure to hear a pro that is clearly on top of his game. Another great walk through Matt.
We used a similar layout when we built a loft during an addition. It was a great choice, and we have so much more space!
One of my favorite videos on this channel I was particularly interested in how the various elements were connected. When I did a back to the studs renovation on an old apartment building unit I added some screws to improve the connection of the ceiling joists to the top plate similar to what was done in this video. It was nice to see that the idea had some engineering support for it.
The opportunity to come along with you as you build your new home is truly invaluable. The insight as to how you employ best practices is amazing. I’m okay that you might be biased; when I build my home, I’ll be biased too. Thanks to your teachings, I’ll know how to build it right! Thanks Matt!
Two engineering videos in a row?? Oh Matt, you know how to spoil ME.
Solid information, not neck deep into my project yet, but I’m doing my research and you have given me the best information that I’ve been looking for. I now have a good direction to start with. Myself, I will need to cut three trusses, so like you have all the capability and knowledge, aside from engineering knowledge, so anyway, thank you, you’ve given me what I’ve needed for my starting point. Matt, you rock brother !
I'm going to say on every LVL show you put out. We really needs to go full-on to engineered wood and keep up with them across the pond.