I've watched a bunch of rafter cutting videos and finally I find one that gets it right! The plumb cut on the birdsmouth needs to go outside the framing so that the wall sheathing can go up to the top of the double top plate. And it's a good idea to leave a 1/8th inch gap beyond as well, so you can slip your weather resistant barrier up to the underside of the roof sheathing. Also, this video shows it right that you don't need (or want) to make the birdsmouth horizontal cut go all the way to the inside of the wall framing. This weakens the rafter a lot, where it has a lot of stress. You only need 2" or so of bearing onto the top plate. The Building Code actually limits the depth of the birdsmouth cut but a lot of professional framers still get this wrong.
He s making this complicated if you're a beginner. Yes trigonometry is so useful. This 9 and 12 equates to 36.86°. Basically cosine of 36.86= 0.800 Divide the run by 0.800. This gives you the rafter length to the birds mouth
Hey Joe, I appreciate you making this video, I was wondering if you would consider doing some other roofing videos, I have a site that I'm really interested in but the content is in Spanish and I can't believe that no-one has this level of detail in English... If this sounds like something you would be willing to look into let me know and I'll forward you the site.... Thanks
Thank you Aaron. Yes, please post the site for the Spanish roof framing video, I'm getting very interested in the geometric roof development drawing techniques used for layout in Europe. My next video on roofing will probably be a similar video to this one, but using SI units.
Wow very good quality video. You can tell that he knows what he’s doing. Best rafter video I’ve ever seen tbh.
Could be explained in three minutes or less
Wow best rafter video out there. Keep making more videos like these
Excellent job. Easy to understand and accurate. Thanks for sharing! 😄
More like this please Sir very well explained
Good instructions! I am getting ready to make 5/12 rafters and needed some help.
Best video I've seen so far and I've seen a lot of videos on how to cut a common rafter
I've watched a bunch of rafter cutting videos and finally I find one that gets it right! The plumb cut on the birdsmouth needs to go outside the framing so that the wall sheathing can go up to the top of the double top plate. And it's a good idea to leave a 1/8th inch gap beyond as well, so you can slip your weather resistant barrier up to the underside of the roof sheathing. Also, this video shows it right that you don't need (or want) to make the birdsmouth horizontal cut go all the way to the inside of the wall framing. This weakens the rafter a lot, where it has a lot of stress. You only need 2" or so of bearing onto the top plate. The Building Code actually limits the depth of the birdsmouth cut but a lot of professional framers still get this wrong.
Good lecturing well done sir
Definitely the best video
Really great video. I like it.
Do you also subtract the 3/4 in from the one side of the ridge to help determine the correct length of the rafter needed?
Yes.
Good work there buaaaad
Is there a geometric/mathematical way to calculate HAP height, instead of marking it with a ruler ( 07:04 ) ?
He s making this complicated if you're a beginner.
Yes trigonometry is so useful.
This 9 and 12 equates to 36.86°.
Basically cosine of 36.86= 0.800
Divide the run by 0.800.
This gives you the rafter length to the birds mouth
This is awesome
Hey Joe, I appreciate you making this video, I was wondering if you would consider doing some other roofing videos, I have a site that I'm really interested in but the content is in Spanish and I can't believe that no-one has this level of detail in English... If this sounds like something you would be willing to look into let me know and I'll forward you the site.... Thanks
Thank you Aaron. Yes, please post the site for the Spanish roof framing video, I'm getting very interested in the geometric roof development drawing techniques used for layout in Europe. My next video on roofing will probably be a similar video to this one, but using SI units.
@@joecalnanvideos Good morning Joe, just checking in to see if you've started the roofing series yet?
MAKING A MOUNTAIN OUT OF A MOLEHILL