Roof OSB Sheathing and Underlayment Build a 20x30 Workshop 

When sheathing you would normally start with full sheet then switch to half sheet to start on second row thus making roof considerably stronger . Snapping a line 4' line off fascia the complete length of roof will make sure sheathing stays straight and square on first row to compensate for slight differences in truss tails (facia ). Another good practice is to snap a line and cut before installing facia on rafter tail to make up for any tail that may be in or out causing in and out when sighting down facia on finished product .

Good job for the effort and tackling this project on your own because a lot of people would of hired someone to do it and believe me you saved a lot of money doing it yourself. I must say that your trusses are not braced at both ends and in the middle, I say in the middle because your building is longer than 20'. I'm talking about 45 degree bracing going from top of truss to bottom chord and in the middle in your case or every 20' you need "X" bracing going from top of truss to bottom chord. This will keep your trusses from moving from end to end. You can still go up in the attic and install these braces, of course if it's insulated up there it will be a pain but I would definitely go up there and get that done especially with the way you've installed your OSB on the roof without staggering the joints. Something else I've noticed is the OSB should not of been a short piece over the ladders, you want that piece to go onto the trusses as far as possible on the first row and it will be staggered by 4' on the next row. I know you think it's rigid right now without staggering the joints but it's long term from years of wind pushing on your building that the problems will start. Ever noticed old barns or old machine sheds. You will lose some material depending on your eave distance but that's the nature of the business. I hope you understand what I'm trying to explain here. I'm not trying to criticize your work, you did a good job. Just want you to learn from it.

Looking great and loved the light saber at the end!!! Can’t wait to see the next video!

Well done. My little 8x10 lawnmower shed roof is coming up soon: sheeting, underlayment and shingles. Glad to see you do it first.

You are a true inspiration!

great video man always back to the basics!

Excellent work Seth.

light saber at the end was a nice touch

Awesome job. Loved it at @10:18

Great videos.. You should be proud of yourself!

Nice move with the saber

great work!

Nice work. Thanks for sharing this. About the underlayment: I think one which is designed for high-temperature applications is normally used under metal roofs.

I was wondering why you didn't stagger the OSB on the roof, it would have made it stronger

Job well done! .....Cheers

The peak would be nice to see

OSB/plywood roof sheeting should be installed staggered.

You don't need the H-clips if there is blocking under the joint with the next OSB. You said after the first side you would stagger the joints on the OSB on the other side but I see you did not do that. I enjoyed the Star Wars effect.

What drove the lack of stagger? Just didn't think worth the effort? I wish I had that 4:12 pitch, I'm finding 6:12 to be about limit for walking.

Nice job but the OSB sheets for the ladders. I think it would have been stronger if you had only used 4ft, 6ft, or 8ft lengths of OSB there. The OSB should be cantilevered out over the ladder. It will be ok though as it is. I live in FL, so more concerned with Hurricane winds.

no sway braces no staggered sheeting

If only they made some kind of hand-held device that could hold collated fasteners that would make it fast and easy to attach that OSB to the trusses... 🤔

i have a 20x30 and added another 20x30 so its 40 x 30 lol second half 2 story should be fun :D

There has to be a better way for an individual man to lift up plywood.

Hi I am a truss designer, in my service I provide truss layout and design. also provide quantity takeoff for construction jobs i/c; MEP. Thank you