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Ducting Insulation

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lupi

lupi

Lifer
Question about insulation. A couple rooms of the house are on a crawl space and the ac ducts run under those rooms in the crawl space. The metal ducts has no insulation on it and on most warm days with the ac going I can see a good amount of condensation on them. If I wanted to add insulation to the ducts what would I need to know/get?
 
If your duct work is screwed together I would pick up a nut driver screwdriver if you don't have one. The screws could be 1/4 or 5/16. It works much better than using a straightblade when you need to take it apart.

Check the price of the insulated flexible duct. Sometimes it is cheaper to buy that and pull out the flex duct. Then you can just slide the jacket over your existing ductwork.

Most importantly make sure you know the size of your ductwork. Is it 6 or 8 inch?
 
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