Myth Busting 2.0: Myths about Spray Foam Insulation

In 2017, we busted the top 3 myths about spray foam insulation here. Here are another 5 myths you may have heard through the grapevine; but don’t worry, we’re here to help clear that up.

Spray foam insulation smells.

If spray foam is installed and cured properly, it should not have any type of smell. The only times there could be issues with spray foam emitting odors is when an inexperienced spray foam technician doesn’t follow the correct insulation instructions when applying foam. This can include but not limited to; incorrect mix ratios, temperature settings or bad material batch from the foam supplier.

Spray foam insulation absorbs water.

Open cell spray foam will allow moisture to pass through it through bi-directional drying and wick in the event of a leak to eliminate the chance of condensation and mold growth.

Closed cell spray foam insulation on the other hand is a vapor barrier and does not allow moisture to pass through it. Closed cell foam is a great application for foundation exterior walls (both basement and crawl space) as well as wine cellars.

Spray foam is full of dangerous chemicals.

Our professional spray foam installers wear protective gear while spraying, and we ask residents to leave the area for at least 24 hours during and after spray foam installation. This is done and regulated for a reason, as the 2 part foam is applied it takes between 12-24 hours for the foam to set and dry. Once the allotted time period is up, the completed insulation is safe to be around.

If I already have traditional insulation, I can’t switch to spray foam.

If you have already have traditional insulation and decide to make the switch to the many benefits of spray foam, the traditional insulation can be removed if needed before upgrading to spray foam. We recommend making the switch, as it is also a great way to improve house circulation, and reduce your heating and cooling cost as it is a great investment financially.

If you are ready to experience the best in spray foam insulation, then contact the spray foam insulation experts at 844-MPI-FOAM. We look forward to working with you!


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