I have this 10x14x12'T cave I framed up this past week. Spent lots of time with chicken wire and landscape fabric. Made sure the fabric is adhered to the backside of the wire and gaps minimized as much as possible. Really stoked this morning. Kinda nervous really. I bought one of those 600 bdft/1.75 lb. spray foam sets around Christmas. Now I am ready to use them. Prepared as good as anyone could be. Canisters were kept in a warm room at 80 degrees. Heated my shop to make sure things were at least 70 degrees. Plenty of extra nozzle tips in my pocket. Hooked everything up and did some test spraying to make sure everything was good. Once I started spraying then all anxiety went away and it became fun. Just a little 1st time jitters.
The 1.75 lb. foam I had just did not have much expansion at all. All the videos on the net look to be that of 1/2 lb. foam so you are used to seeing all kinds of expansion. Overall I figured I had a little over 700 square foot of surface area to my room. In most places my fabric did not deviate from the wire more than 1/2"-3/4". I thought heck at 1" thickness and 600 square feet I could knock out most of it and go from there. What happened was I covered 85% of the walls with varying thickness of 1/4"-1/2" of foam. It was almost a struggle to get the foam to 1" in thickness unless you held the nozzle right on it. Most of the chicken wire is still exposed. I don't even think another set of tanks would even finish the job. Instead of getting 600bdft or 50 cubic feet of foam under perfect conditions I actually ended up getting about 1/3 that amount. In the end one canister was empty and the other had very little in the bottom so the mix I thought was pretty good.
Extremely disappointing overall as I had high hopes. Seemed like every post I read everyone was happy with their results. Since I am using chicken wire I am considering smearing over everything with stucco. Be cheaper than another DIY spray foam kit as I was going to hardcoat with a stucco finish coat anyways.
The 1.75 lb. foam I had just did not have much expansion at all. All the videos on the net look to be that of 1/2 lb. foam so you are used to seeing all kinds of expansion. Overall I figured I had a little over 700 square foot of surface area to my room. In most places my fabric did not deviate from the wire more than 1/2"-3/4". I thought heck at 1" thickness and 600 square feet I could knock out most of it and go from there. What happened was I covered 85% of the walls with varying thickness of 1/4"-1/2" of foam. It was almost a struggle to get the foam to 1" in thickness unless you held the nozzle right on it. Most of the chicken wire is still exposed. I don't even think another set of tanks would even finish the job. Instead of getting 600bdft or 50 cubic feet of foam under perfect conditions I actually ended up getting about 1/3 that amount. In the end one canister was empty and the other had very little in the bottom so the mix I thought was pretty good.
Extremely disappointing overall as I had high hopes. Seemed like every post I read everyone was happy with their results. Since I am using chicken wire I am considering smearing over everything with stucco. Be cheaper than another DIY spray foam kit as I was going to hardcoat with a stucco finish coat anyways.
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