3 ms·
"Some phase change materials are only about 4-7 times as expensive as crude gypsum." In other words are prohibitely expensive. Steel needs to be heavily regula
by emp_zealoth 11y ago
"Some phase change materials are only about 4-7 times as expensive as crude gypsum." In other words are prohibitely expensive.
Steel needs to be heavily regulated, mainly because there can be a zyllion things wrong with it. Wrong shapes/gauges/dimensions can cause stress concentrations, fractures, increased wear,tendency to warp, etc. Improper compositions can mean brittleness, bad welds, corrosion (galvanic one too! - same thing for coatings), expansion problems, on and on
Wood is age old tech, you either get good quality lumber or you don't. You put oak and spruce next to each other and it looks cool. Try putting bronze and steel together and see how that works.
It is a good thing to require sewer connections, there are people who will happily dump, well, shit, right under your fence if it means paying few dollars less each month
And yes, I can image the last part. It would be a nice premise for a horror movie...
Usually the tech just kind of comes along and happens, when it's time comes, throwing random stuff at a wall worked out so great before (cough asbestos cough)
- logfromblammo 11y agoThe cost of a phase change wallboard has to be weighed along with heating and cooling costs. In any case, gypsum is dirt cheap, as in literal dirt might be more expensive per ton. A material just 5 times as much as dirt cheap is still rather inexpensive. The costs will still be dominated by the machinery binding the material into a wallboard, shipping, and the installation labor. And as you say, asbestos was a disaster. But building codes did not prevent diseases from an unforeseen inhalation hazard.