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
1. tin-a silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide. atomic number 50, Sn. tin foil, tinfoil-foil made of tin or an alloy of tin and lead.