Well here goes nothing

[UtahBeehiver]

Re: Well here goes nothing

Area of dome = 1/2 of 3.1416 x d2 plus some contingency for waste and chimney area with d = 42" plus 9" for brick and plus any other coatings under the blanket.

[Bubb]

Re: Well here goes nothing

Okay I got 230 div by 12" I get 19 sq ft! With a roll 25' long
I should have plenty of fiber blanket! Getting
Harbor saw tonight it's in stock.. Oh boy look for
Some good pics Sunday! I'll be on dome build!!!

[UtahBeehiver]

Re: Well here goes nothing

Check your math. Assume 0.5(3.1416X51x51)=4085 square inches divided by 144 (12" x 12") = sq foot = 28.4 sq ft+/- with no contingency

[oblertone]

Re: Well here goes nothing

Assuming a 4" thick wall, gives an external radius of 25" and a dome surface of 3926 sq/in. which equates to 27 sq/ft. Minus the arch I would say you'll get 2" coverage.

[Bubb]

Re: Well here goes nothing

It's enough to get me started. I'll worry
About getting the extra wool when I'm close
To done the dome. I got fire clay, sand, Portland
Cement, and lime! My lime is yard lime but
That's all Home Depot had?