Probably Thursday we’ll start the roof of the frame we are on. We are going to use I-joists as the main rafters and we’ve added about 1100 sq of space and gotten a view of the golf course. Tons of room in the “attic”.
Anyway, my question, would anyone with info, pics or experience please post whatever you have here?
I’ve read everything I can get my hands on, looked at all the pics, watched the videos (Simpson’s site for their hangers) and everytime I close my eyes, I see I-joists 🙂 I want to know everything there is to know, and now I just need real world experience.
Our next frame is the same plan as this one, but it’s a custom, not a spec. It was supposed to have a hip roof (trusses), but the customers have decided they want us to do this again, so it’ll be interesting to compare man hours 🙂
I’m looking forward to it. There were some town houses that were all I-joist rafters that I took some pics of last summer. It was insane the amount of hardware they used (we won’t use as much) and the glulam posts that extended through the floor onto giant piers in the crawlspace with saddles. Really cool and they look great in person now all finished
http://pic9.picturetrail.com/VOL293/2163851/4215098/129798070.jpg
http://pic9.picturetrail.com/VOL293/2163851/4215098/129798067.jpg
http://pic9.picturetrail.com/VOL293/2163851/4215098/129798065.jpg
Replies
FHB #153 had an article on roof framing with engineered lumber. It addresses both I-joists and LVLs. There was a letter (or possibly a correction) responding to the article in #156.
Also, FHB #150 had an article on timber framing with engineered lumber.
Tim,
What lense did you use for those pics, and what is the resolution.
Your lumberyard probably carries the rafter repair kits, and in my area the 14" I-joist have 11 1/4" between the flanges, a 2x12 fits in perfectly.
Maybe you can put a 4' block inside and use a seatcut and also have something solid at your tail.
John,
I have the first Digital Rebel and I use the kit lense pretty much all the time. I have a wide angle Sigma lense that distorts when you start shooting at an angle, but straight on it looks good. I always shoot at the highest resolution (6.3megapixels). The wide angle makes it easier to stand in a room and get the enitire ceiling like this one
View Image
Tim,
These are some photos of a garage remodel I did in '98. The I-joist/rafter info I used was in the January '97 JLC.
Bunch of reasons we used I-joist rafters sitting on a structuaral ridge.
1. the owners wanted to be able to use all of the attic space for storage, as they had very little storage in the house.
2. The previous owners had poured the stall for the 3rd garage bay without a permit, and it took the total garage size over the sqr ft limit. The new owners applied for a variance, and one of the reasons they were granted a variance was they would be saving the wainscoted interior of the original garage. (The neighbor was on some sort of historical committee) so we were able to not damage the inside of the original part. Neighbor had some influence on the variance appeals board I believe.
3. Also there was a height restriction, so the roof pitch is something wierd like a 5.5 in 12.
I used a beveled top plate on the ridge beams and the walls, and roll strapping at both the ridge and the wall plate, along with a strap over the top to connect each opposing rafter. The rafter tails were 2x's added after, along with blocking at the wall. IIRC we had a restriction on the rafter tail projection too, as the original garage was too close to the lot line.
Bowz
http://www.areadan.com/pics/601/index.html
a few photos of a house that I helped frame using TJI rafters.