This Old House general contractor Tom Silva explains the wide world of spray-foam insulation. Click here to SUBSCRIBE to the official This Old House YouTube channel: http://www.youtube.com/subscription_center?add_user=thisoldhouse Full episode: https://www.youtube.com/watch?v=rETV6HAY_NI&index=14&list=PLkJADc1qDrr8JnEkf1GX2utInAXW6t2XP How to Install Fiberglass Insulation:
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