How it Works: Collar and Rafter Ties - Fine Homebuilding
Rafter ties or ceiling joists support the rafters and sidewalls under gravity loads, including the dead load of the roof structure and live loads such as snow (above drawing). Drawings courtesy of Christopher Mills. RELATED STORIES. Laying Out a Common Rafter – For simple gable or shed roofs, you need to learn this basic building block of ...
Rafter blocking vs ventilation - Fine Homebuilding
Mar 8, 2005 · Rafter blocking vs ventilation jcrew2 | Posted in Construction Techniques on March 8, 2005 11:46am I was talking with my framer about leaving a 1.5 in space between insulation and roof sheathing for ventilation, and the airflow from soffit vent to ridge vent.
Blocking between ceiling joists & rafters - alternative.
May 6, 2016 · I finally found an image similar to what I think I've seen (without the joists), only the block would touch the wall on the outside of the wall, perpendicular to the rafter, and they didn't use a strong-tie. According to his article (and some replies) some people just use a structural facia board instead of blocking.
Blocking In Roof? - Fine Homebuilding
Dec 5, 2009 · The edge blocking is 2X4’s laid flat between the rafters and “toe nailed”. The entire stack of rafters are now very much stiffer than they were. I was intending to install some 2X6 blocking (installed with 6″ dimension vertical) but I am thinking it really doesn’t need it, as it is a roof and not a floor.
How to Frame an I-Joist Roof - Fine Homebuilding
Details for blocking and venting. To prevent the rafters from rolling over under load, I used a manufacturer detail with blocking between each rafter on the low end of the roof using LSL rim board. (The blocking is also the attachment point for …
engineered rafter blocking - JLC-Online Forums
Nov 17, 2005 · engineered rafter blocking 11-17-2005, 11:34 AM Got a question especially for you guys who frame in the highly engineered seismic and wind zones, but chime in too if you know about wood shrinkage: My engineer is requiring ripped 2 x 10 rafter blocking, at the bird's mouth, which rises all the way to the upper edges of the 2 x 10 rafters.
Do I need blocking here? - Fine Homebuilding
Nov 12, 2004 · Blocking helps to keep things straight. You may want to put a row in the middle to help keep the rafters from rolling around, but 10' isn't that long, and it's a shed. If you put in a ceiling of some type, that also helps to keep the rafters from rolling around.
Air-Seal an Attic Series: Insulation Ventilation in Rafter Bays
I’m going to push the vent shoot so it’s a couple inches past the exterior of the wall. Then I can push the blocking panel in, get a good friction fit, and push it as far out to the exterior face of the wall as possible. A couple of staples will hold the vent shoot in place. I’m going to spray foam around the perimeter of that blocking panel.
rafter blocking - JLC-Online Forums
Mar 10, 2002 · Re: rafter blocking This depends on the engineering. i got caught on one job where the inspector stated he wanted to see a toe nail from the blocking into the top plate in addition to h1 clips on every rafter. plus nailing from the starter board and roof sheeting into every block. what a pain in the ass this job was.
2x6 tails on 2x12 rafters - Fine Homebuilding
Nov 26, 2005 · OK, so I'm trying to figure out the blocking detail. Either (1) the 2x12s are plumb-cut at the face of the wall, and I need to block between them, or (2) the 2x12s are plumb cut 1-1/2" back from the face of the wall and I run a 'rim' around.