07-08-2016, 09:44 AM
Interesting about block not being fireproof. I imagine that there are definitions involved. I can't imagine that block is not fireproof the way 2x4s and plywood are not fireproof. I imagine that the waffle/egg-crate shape of the structural concrete inside the finished ICF wall is more efficient than a solid wall. I imagine that this cost savings is offset by the cost of the ICFs or the concrete blocks for that matter.It still is not clear to me where the sweet spot lies.
How does the ICF achieve this fire rating? There is foam on the outside, is there not? What is the insulation material?
How does the ICF achieve this fire rating? There is foam on the outside, is there not? What is the insulation material?