Insulation, Radiant and Vapor Barriers - Cellulose insulation....general questions

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bobtroy
05-09-02, 10:06 AM
I have a house which is completely insulated, except for one room which was added after. Do I do all 4 walls, or just the 3 outside walls. I am going to blow it in from the inside. There is a crawlspace underneith the room. Should I insulate that also? If so, should I completely cover, or just a few inches? Thanks for the help.

resercon
05-11-02, 09:38 PM
The rule with insulation is the surfaces that separate the inside from the outside should be insulated. This is referred to as a thermal boundary. So the 3 outside walls and the floor in the room shound be insulated.