Existing homes and buildings require different insulation needs. The two most common spray-on insulation materials are Celbar® cellulose or foam (either open-cell or closed-cell, which have very different qualities). Here are ideas to consider when choosing the right insulation for your home or business:
If you have a gas furnace, you will have to modify the existing HVAC equipment to address combustion gas in your attic. ($1,000 – $2,000)
It is recommended to remove the existing insulation ($.80 – $1.45 per square foot). Has your contractor included the removal price in the bid?
Fire / Smoke Protection
Foam insulation needs to be coated for fire resistance. If it will be left exposed, then all manufacturers require an ignition barrier or thermal barrier, which requires more labor and material. Who will install this? Who will test the application? How do you know what the requirement is per scope of work? Is it included in the price? Check with you contractor.
Leaving the Premises for 24 hrs
Did you know that you need to vacate the premises for 24 hours (including pets) during the installation of spray foam? Pack your bags! But, no, you are not going on vacation. This is a standard when installing foam since it off-gases toxic fumes during installation and while the foam is curing to the substrate.
We rather use foam insulation for new commercial construction. We utilize our years of experience to help you choose the right insulation for your building or home project.
The video below compares the results of tests for fire resistance in different insulation materials. Spoiler Alert: cellulose insulation is safer than you think.