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Dec 05, 2019
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Five Rookie Spray Foam Insulation Mistakes

Having been in business for over 40 years, there are countless scenarios where Lindus Construction has been called upon to fix mistakes by inexperienced contactors and homeowners that waved the white flag on DIY projects.  When it comes to spray foam insulation, there are many missteps that can have detrimental long-term consequences.  Here’s a list of cardinal sins that those unfamiliar with spray foam insulation can commit.

Selecting a Cheap Material: Not all spray foams are created equally.  Those of a lesser quality fail to adhere to the surface they’re being installed on.  If moisture levels within the spray foam insulation are incorrect, there can even be concerns of mold and mildew growth.

insulation and ventilation

Incorrect Mix: For the chemicals in spray foam insulation to stick to the area they’re being applied to, they must be properly mixed on-site at the correct ratio and temperature.  Equipment must be correctly calibrated and be in good working order.  Tell-tale signs that the spray foam was not mixed properly include lingering smells and a waxy debris.

Ignoring a Layered Approach: Spray foam insulation must be installed in a quick, even, controlled manner.  A common rookie mistake is not understanding that spray foam insulation must be installed in layers and that each pass needs to expand and cool before another can be added.  Varying from this means the first layer may not have as much volume as it should, making the foam less effective and contributing to higher long-term energy costs.  There’s also risk of a perpetual, pungent odor because the spray foam became too hot.

spray foam

Rushing Through the Job: Rushing through a spray foam application can create rifts and even leave spots that have been missed, which will create unnecessarily high energy bills.  This makes it important that you don’t pressure an insulation contractor to move you up on their schedule or quickly complete the work once they arrive at your home.

Watch an Insulation Project Recently Completed by Our Insulation Experts: 

Failure to Protect Your Home: Before it dries, the consistency of spray foam insulation is like that of a heavy glue or paint.  Upon contact, spray foam is designed to suction itself to the surface it’s sprayed on and then expand.  Even reputable installers can have issues with overspray.  Recognizing this, they go out of their way to clear rooms of furniture, wall hangings, light fixtures, etc. Items that cannot be moved should be shrouded to protect from overspray.  Once spray foam is applied to an incorrect surface, it can be impossible to fully remove.

Browse Our Insulation & Ventilation Projects:

Insulation & Ventilation Reviews:

"Thanks for a great project and managing the process for our attic work. Very impressed with Lindus Construction customer commitment and keeping the project on track."

Bruce H.
Robbinsale, MN
November 8, 2019

"Hired Lindus Construction this summer to replace an aging roof, install LeafGuard® gutters, and re-insulate the attic on my 100-year-old house. From beginning to end, everyone I spoke with was friendly, knowledgeable, and professional. They even sent out a quality inspector after the project was finished to make sure everything was perfect. House is dry, warm, and ready for winter. Will hire again!"

Joel S.
Baldwin, WI
October 6, 2019

"They did great.  We’ve already used them for a second project."

Ryan C.
St. Paul, Mn
August 20, 2019

"Workmanship is great. Completed timely and cleanup was great."

Loretta D.
Minneapolis, MN
May 17, 2019

"I had a new roof put on, my ceiling insulated, and LeafGuard® gutters installed. The salesperson was great to work with and the crew was amazing! I was kept informed about the process by the crew and the office staff was always available to answer questions. I highly recommend Lindus and will likely have them install new siding."

Tammy D.
St. Paul, MN
May 15, 2019

"Animals (bats and squirrels) caused a lot of damage in our attic. All the insulation had to be removed and replaced as well as vents repaired. They told us when they would do it and how long it would take and it was done on time. They did not make a mess and all the workers were very courteous and listened to our concerns. We would do work with Lindus again. They want to do things right!"

Don W.
Plymouth, MN
April 26, 2019
75% Off installation labor on LeafGuard® Brand Gutters and GAF Asphalt We are also offering a complimentary heat map analysis with insulation estimates through May 2022.
Some restrictions may apply. Call for details.

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