GETTING MY SHEET METAL DUCTWORK LANCASHIRE TO WORK

We also advocate that you simply seal this joint by using a metal duct sealant. All sheet metal duct useful for Supply Air in the HVAC/heating or air conditioning technique need to be insulated on the outside by wrapping a fiberglass insulation blanket across the sheet metal duct. Would you have to have tailor made metal ductwork fabricated for the