Insulate attic before or after adding ducting for A/C?

Asked by Squid, Los Angeles, CA Thu Jun 3, 2010

Am getting ready to install and HVAC system with ducting in the attic crawlspace (about 18" high in most places). I would also like to add insulation to my attic. Shoul the installation go in before or after installing the ducting? Thanks

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Monique & Joe…, Agent, Beverly Hills, CA
Thu Jun 3, 2010
Hello Squid,

I had the same dilemma. I recently added insulation to my attic after the ductwork. It was a blown in insulation. The issue depends on what insulation you are using. A bat insulation seems like it would be better before you put in the duct work. I had my blown insulation put in after the ducts because it would seem to me that someone crawling and putting in the ducts would make a mess of the blown insulation. Check with your contractors. Just my two cents! Kudos to you for adding insulation to your home!

Best,

Monique Carrabba
The Carrabba Group
Keller Wiliams Hollywood Hills
mcarrabba@kw.com
(323) 899-2900
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