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Type of insulation

Oxhouse | Posted in General Questions on

wondering if we can get some input on what time of insulation this may be? There is a lot of recycled newspaper so thinking blown cellulose but still unsure with so many types and the possibility of abesteos.

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  1. Expert Member
    Dana Dorsett | | #1

    The fluff looks like fiberglass with dirt/grit and paper mixed in. Possibly rock wool, but i's almost too white for rock wool or asbestos.

    The granular stuff could (remotely possibly) be vermiculite, which could be an asbestos issue, but in the picture it looks more like the grit from asphalt shingles or something.

    1. Oxhouse | | #2

      Yes. Looking at fibreglass insulation it does have a good resemblance & yes the granular stuff is from the concrete layer overtop. There's quite a bit of newspaper in it but it's all different sizes and not really pressed into the mixture.

  2. walta100 | | #3

    To my eye, 90+% of the sample looks like fiberglass.

    Often in an attic you will find a few dark spots where air flows thru the insulation and filters the air and darkens the insulation.

    I have seen pink and yellow fiberglass did someone manufacture gray?
    Is your home located in the USA?

    The only real way to answer the question “is this asbestos?” is to have a sample examined by a laboratory.


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