Ventilate: An insulation contractor can calculate the ventilation your crawl space needs and will cut in new vents as required. Seal the subfloor: Holes for electrical wiring and plumbing should be sealed with spray foam insulation. Insulate plumbing pipes and HVAC ducts to prevent heat loss and freezing.
Definition of metal 1) An element below and to the left of the stepwise division (metalloids) in the upper right corner of the periodic table; about 80% of the known elements are metals. Was this definition helpful? Tweet
metal. 1  any of a class of chemical elements, as iron, gold, or aluminum, generally characterized by ductility, malleability, luster, and conductivity of heat and electricity: these elements act as cations in chemical reactions, form bases with the hydroxyl radical, and can replace the hydrogen of an acid to form a salt.