To that end, this beginner lesson in heat-treating steel from [Blondihacks] demonstrates why it can be beneficial to trade some of the metal’s toughness for improved hardness and just how to ...

Home hardening means using fire-resistant building ... concrete or clay tiles and some metal roofing materials. Gaps and ends need to be plugged. Rain gutters: Fire-resistant gutters are made ...

Home hardening means using fire-resistant building materials and landscaping to protect ... includes asphalt fiberglass composition shingles, concrete or clay tiles and some metal roofing materials.