Feasibility of Isolating Studio Above Attached Garage
Posted: Mon, 2022-Jan-10, 11:24
Thank you for addressing the mix position question. I will come back to this in a later post. Onto the flooring assembly.
According to my structural engineer: "these existing floor joists would be able to withstand an additionnal unfactored deadload of 1.45 kPa (30 psf) if the load is applied all on the top chord." Based on the 30 psf limit this is what I have come up with.
0.75" maple hardwood finish over 2" Plywood (3/4" + 1/2" + 3/4" with Green glue in between.) over 2" OC703 over 1.75" Gypcrete over existing 1" OSB subfloor.
This will also give me 6.5" of rise to match the rise of the floor on the other side of the sunken landing adjacent to the studio.
I have never worked with Gypsum Concrete so if anyone can offer insight on prepping the subfloor and pouring Gypcrete that would help. Any other thoughts on this would be greatly appreciated as always.
I have sent my plans to Green Glue to see if they can offer more insight and I'm calling suppliers today regarding the gypsum concrete and OC703.
According to my structural engineer: "these existing floor joists would be able to withstand an additionnal unfactored deadload of 1.45 kPa (30 psf) if the load is applied all on the top chord." Based on the 30 psf limit this is what I have come up with.
0.75" maple hardwood finish over 2" Plywood (3/4" + 1/2" + 3/4" with Green glue in between.) over 2" OC703 over 1.75" Gypcrete over existing 1" OSB subfloor.
This will also give me 6.5" of rise to match the rise of the floor on the other side of the sunken landing adjacent to the studio.
I have never worked with Gypsum Concrete so if anyone can offer insight on prepping the subfloor and pouring Gypcrete that would help. Any other thoughts on this would be greatly appreciated as always.
I have sent my plans to Green Glue to see if they can offer more insight and I'm calling suppliers today regarding the gypsum concrete and OC703.