Surface frost may also be thawed by burning straw or by spreading a layer of hot sand, gravel or other granular material on the surface. Calcium chloride flakes will also thaw surface frost, ice and snow. ... very few of them like to pour in temperatures below zero degrees F. Most builders look for a two- or three-day break inanbsp;...
|Title||:||All-weather home building manual|
|Author||:||National Association of Home Builders Research Foundation, United States. Dept. of Housing and Urban Development. Office of Policy Development and Research, United States. Division of Energy, Building Technology, and Standards, United States. Dept. of Labor|