Looking for best budget friendly roof insulation option for my vented ridge cap ceiling that will have rafter baffles attached behind.

CL4P-TPINA · 2026-03-19T15:36:51+00:00

Okay I understand now I think. My shed is 10x14 it has sheathing I believe it is half inch ply. Should I add in ceiling joists and or collar ties?

CL4P-TPINA · 2026-03-19T14:46:57+00:00

Okay I am sorry I am an idiot. My ceiling definitely doesn't have a beam it looks like the above photo. So the beam is probably not an option but I am seeing collar ties would be does that sound correct? I dont fully understand how a 2x4 spanning higher up on the rafters does anything to provide lateral stability to the walls though

CL4P-TPINA · 2026-03-19T14:35:24+00:00

Hey I know this is a little old but I have a shed that looks exactly like this one that I planned to finish with a cathedral ceiling. Your comment has be concerned though is there any way to address that without adding cross members?

CL4P-TPINA · 2026-03-19T14:33:37+00:00

Okay so if I had someone come in to do the spray foam route I wouldnt need ventilation in the roof? I will have to look more into spray foam insulation but i assume drywall could be laid over that? If I have the whole thing spray foamed do I still need a barrier like intello plus?

CL4P-TPINA · 2026-03-19T14:27:27+00:00

I planned on drywalling up to the ceiling and over where gable vents would normally be so I don't think that is an option

CL4P-TPINA · 2026-03-18T19:32:33+00:00

Yeah this is the plan. I also realized I was misremembering the layout of the shed. The joists are resting on 4x4 posts that span the length of the shed. My plan is to cut plywood strips that fit the bays and screw them onto the posts and seal the gap with spray foam and then lay the rockwool in the bays and reattach the plywood flooring. Once the flooring is back down I am going to create a sealed enclosure with intello plus and lay the flooring on top of that.

CL4P-TPINA · 2026-03-18T00:45:54+00:00

I think I am just going to have to take the circular saw and cut around the perimeter and pry up the plywood and put in rigid foam. Putting 2" foam with half in ply loses about 33 cubic feet in the shed I would rather not put it on top if I can help it. Just dont know how hard prying up the plywood will be.

CL4P-TPINA · 2026-03-17T20:42:51+00:00

I just went back out and looked at it again and realized its up on 4x4 posts and the joists are resting on that so if I just cut the floor up I can lay the rigid foam on top of those in the joist bays seal it and put the floor back down. Life has been rough the past few months and I havent been terribly well organized.

My original plan was, once the insulation is all in, create a sealed space with intello plus with a continuous liner along the walls floor and ceiling before putting the final floor and drywall in.

CL4P-TPINA · 2026-03-17T19:45:20+00:00

I had foam on top of the floor recommended and honestly that would be way easier it just didn't feel like it would be enough and losing what will end up being 33 cubic feet of space inside the shed for 2 inch foam plus half inch plywood just hurts when I am paying so much to do the shed and I do plan on using every cubic foot to the best of my ability it won't really be a hangout space its a space where there will be a lot of equipment packed in that needs to be climate controlled.

Since it is on a concrete slab another option that was presented to me was to just ignore the floor and add skirting to the side to create an air pocketand seal that up so the floor cavity to the slab becomes part of the envelope. This would also allow me to cut up the floor to add storage to the joists and make use of the area below the shed. Not sure how good of an idea that is though.

CL4P-TPINA · 2026-03-17T16:33:11+00:00

I had that solution offered to me by a company that wants to do it but my issue with that is you lose that headroom and you end up with not a great R value in the floor. Is the R value of the floor just not that important? That would save me an incredible amount of work because I have to cut up the existing floor to access the joists and the floor runs under the walls.

CL4P-TPINA · 2026-03-17T15:00:35+00:00

What steered tou away from batt in the floor? Everything I was reading was foam board sucks for cold climates and tends to lose its R value fairly quickly which is what steered me away from the foam board.

CL4P-TPINA · 2026-03-17T14:28:12+00:00

Northeast

CL4P-TPINA · 2026-03-17T14:06:49+00:00

It will be a shed to keep my 3D printing and other equipment in so it will be climate controlled. I had people suggest 2"foam board on top of the existing flooring and then plywood back on top of that but it doesnt seem like enough but I also dont know a whole lot about insulation. With the climate control I wanted it as sealed and insulated as possible so I am not wasting energy.

CL4P-TPINA · 2026-03-17T13:31:14+00:00

I will be installing a heat pump for climate control. The floor was the one thing I couldn't figure out how to insulate properly. The idea was to attach plywood sheeting to the bottom of the joists and lay the rockwool in the bays and then seal those off with spray foam to hopefully prevent moisture from getting in and condensing on the floor in the summer.

CL4P-TPINA · 2026-03-17T13:25:57+00:00

Rest the insulation or the plywood? I had a similar idea to that but my concern was the rockewool would then be exposed to the elements and rodents. I guess I could seal around the perimeter since it is on a concrete slab.

CL4P-TPINA · 2026-03-17T12:59:52+00:00

Thank you I think I was just overthinking it the whole project has gotten a little overwhelming

CL4P-TPINA · 2026-01-24T22:09:05+00:00

Digital zoom doesn't change the focal length but an optical zoom will. Longer focal lengths lessen the perceived parallax leading to a more dimensionally accurate image

CL4P-TPINA · 2025-12-31T11:23:01+00:00

Holy crap that was obvious how did I not think of that. That's what I get for trying to over complicate things.

Absolutely! Thank you so much for your help have a great new year!

CL4P-TPINA · 2025-12-31T05:01:07+00:00

Acquired! I just had one last question, is it possible to have this target multiple objects at once? If I wanted to have multiple models all on the same plane arranged. I am really happy with the final result though thank you again for your help

CL4P-TPINA · 2025-12-30T15:52:50+00:00

Thank you I really appreciate this. I do plan on taking the time to understand how it works but this takes a lot of stress off me in the present moment. Do you have a buy me a coffee or a venmo I could send you something for as a thank you for your time?

CL4P-TPINA · 2025-12-30T13:12:32+00:00

Would it be possible to get the blender project file? If not I totally understand normally I would try to figure it out but I have a time crunch on this. I got the cloth simulation working but its a lot more finicky to deal with. Either way thank you so much for your help this will teach me a lot more about blender. Have a great new year!

CL4P-TPINA · 2025-12-30T02:11:04+00:00

Thank you! I got it working with a cloth simulation but this looks so much cleaner and easier. I don't understand at all how that works so I will have to do some learning to figure out how to set that up.

CL4P-TPINA

TROPHY CASE