https://vulcraft.com/Products/JoistGirders

https://www.neuvokascorp.com/

Cold roof Design: https://www.cor-a-vent.com/s-400.cfm

First layer https://www.homedepot.com/p/TECHSHIELD-LP-TechShield-Radiant...

Foam Layer: https://universalconstructionfoam.com/

Second Layer: https://www.homedepot.com/p/5-8-in-x-4-ft-x-8-ft-Zip-System-...

Outside walls, roof eaves, etc:

https://www.jameshardie.com/

Concrete:

https://cor-tuf.com/everything-you-need-to-know-about-concre...