Safest insulation material?
I would like to know what the safest material is for an attic. We have a converted flat roof – originally it was a flat roof and then a pitched roof was added on – so we have some space as an “attic” that we use for storage and the HVAC system. There aren’t any rafters and our ceiling is wood planks (tongue and groove?). My husband put poly iso foam insulation but now I’m wondering if it’s safe. I have a small child and I’m worried about the air quality, etc. and worried about the fire retardant in it…
Thank you so much in advance!
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