Is blow-in insulation good for use between an attic floor and a second floor ceiling? If so what precautions?
Monday, February 8th, 2010 at
5:24 am
should be taken? There is no heating in the attic, but two chimney pass thru the entire house and attic to the roof. Are they a danger of fire or smoke or smoldering of the insulation? And the manufacturer warns of light fixtures recessed in the ceilings of the room below. How can one know without tearing up the entire attic floor where those fixtures exactly are?
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Cellulose insulation does not settle. Blown Fiberglass does. Cellulose is also extremely fire-retardant and the bugs don’t like it.
The main concern regarding the light fixtures, in as far as cellulose insulation, is that they can overheat and fail to function.
Your best course of action would be to remove the flooring in the attic. If you choose to replace it, be sure to fur out the ceiling joists so that you don’t compact the insulation (whichever you decide to go with) and lose R-value.
you’d have to figure out where all the fixtures are… and build boxes arounf them unless they’re ated for contacht with Insulation…………. yuo’d also want to keep the insulation from direct contact with the chimney as well.
Personally I would probably tear up the floor and put down fiberglass batts. The cellulose will settle eventually and you will lose your insulation value with no way to fix it. Plus, there is the light fixture issue and that I don’t think blown in is really meant for horizontal cavities.