 Re: Thermal expansion in floor/vent landing design
I removed my vermiculte/concrete layer on the outside half of my landing area. I developed 1/8th inch gaps between some of the bricks from the heat expansion. I think it has something to do with the differences in the insulating abilities of vermicrete v. concrete. It makes perfect sense to me (now) that the entryway is subject to different expansion/contraction than the dome. My soldier course was on top of the floor, if that makes a difference.
The .21 expansion might be significant. I'm not sure if this number is a percentage. I'm pretty positive that different manufactures of bricks have different numbers too.
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GJBingham
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Everyone makes mistakes. The trick is to make mistakes when nobody is looking.
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