Question 1

How does the RetroFoam-licensed installer know when a wall cavity is completely full of foam?

Accepted Answer

By timing the cavity fill, methodically placing the insertion holes, and providing back-pressure on the insertion hole, we are able to ensure a cavity is completely full. We are as concerned with overfilling.

Question 2

RetroFoam contains water when it is first installed. Where does it go? Will it damage the walls?

Accepted Answer

Initial water content of the foam is approximately 4% by volume, too low to affect a building's structure. The partially open-cell nature of the foam means the insulation dries out quickly (in approximately two to three weeks) and once dry, RetroFoam resists re-absorption of water. In most cases, the foam dries out before mold can grow. Additionally, prior to insulation, a technician will assess your home for existing moisture issues that could extend dry time.

Question 3

Will RetroFoam cause dampness?

Accepted Answer

No. When RetroFoam is exposed to water it is hydrophobic, meaning it sheds water rather than holds it. Even when immersed in water, RetroFoam absorbs only a small amount of water which quickly evaporates once it is removed from water. As with most insulation materials, RetroFoam will become water-logged when exposed to water over a long period of time.

Question 4

Is it safe to fill the cavity of a brick veneer home (this is called the Wythe cavity)? I thought there needed to be a ventilation space between the brick and wood framework?

Accepted Answer

This is partially correct.  However, the primary purpose of this gap is to keep moisture traveling through the brick, which is porous, and touching the wood and sheathing. If the wood is in contact with brick, it will take up moisture, which causes the wood to rot. RetroFoam is breathable but also repels water. The foam fills the whole cavity space providing a suitable thermal barrier, without transferring moisture to the wood.

Question 5

Will installation disrupt my home?

Accepted Answer

Installation takes approximately one to two days, so there is minimal disruption to your home. We ask that pictures be removed from the walls.

Question 6

Will I need to be home?

Accepted Answer

It’s preferable but not necessary. We do ask that our crew members have access to the home to monitor for problems during the foaming process, as well as to check outlets once the drilling is complete.

Question 7

Will RetroFoam cause a fire hazard in the wall?

Accepted Answer

No. RetroFoam has a Class I fire rating, which means it is non-combustible. Even in intense heat, RetroFoam will not burn or melt. However, it will char, lose weight, and disintegrate.

Question 8

Does RetroFoam corrode the plastic coating on the electrical wires inside the walls?

Accepted Answer

No. Unlike some plastics, RetroFoam will not react with plastic-coated cabling or wiring.

Question 9

Will RetroFoam shrink and deteriorate with age, thereby losing its insulation properties?

Accepted Answer

To a small degree (maybe as much as 1-3%), some initial shrinkage is normal, but tests have shown that RetroFoam maintains its physical and insulation properties. Often the void space from shrinkage is less than what can be achieved when installing fiberglass bat insulation.

Question 10

What does it feel and look like?

Accepted Answer

When first installed, RetroFoam feels similar to a shaving cream. It needs a semi-fluid consistency in order to seal the entire wall cavity and flow evenly around various barriers. It begins drying almost immediately, although it takes between two to four weeks to cure. Once dry, it becomes firm but remains malleable at all times and can be gently removed and reinstalled.

Question 11

How does RetroFoam of East Tennessee ensure the wall cavity is completely filled with foam?

Accepted Answer

By timing the cavity fill, methodically placing the insertion holes, and providing back-pressure on the insertion hole, RetroFoam installers make sure the cavity is fully filled without overfilling.

Question 12

Does the initial water content in RetroFoam cause any damage or mold growth in walls?

Accepted Answer

RetroFoam contains about 4% water when installed, but this evaporates in 2-3 weeks. The foam resists water re-absorption and usually dries before mold can grow, with technicians checking for moisture issues prior to installation.

Question 13

Will RetroFoam cause my walls to become damp?

Accepted Answer

No, RetroFoam is hydrophobic and sheds water rather than retaining it. It absorbs minimal water that evaporates quickly unless exposed to water for a long time.

Question 14

Is it safe to use RetroFoam in the cavity of a brick veneer home?

Accepted Answer

Yes, RetroFoam fills the cavity providing a thermal barrier while repelling water, preventing moisture transfer to wood which can cause rot, maintaining proper breathability.

Question 15

How long does RetroFoam installation take, and will it disrupt my home?

Accepted Answer

Installation usually takes one to two days and causes minimal disruption; removal of wall pictures is requested during the process.

Question 16

Do I need to be home during the RetroFoam installation?

Accepted Answer

It's preferable but not required. Access to the home is necessary for monitoring the foaming process and checking outlets after drilling.

Question 17

Is RetroFoam a fire hazard inside my walls?

Accepted Answer

No, RetroFoam has a Class I fire rating, meaning it is non-combustible and will not burn or melt, though it will char and disintegrate under intense heat.

Question 18

Does RetroFoam damage electrical wiring insulation inside walls?

Accepted Answer

No, RetroFoam does not react with plastic-coated electrical wires and is safe to use around cabling.

Question 19

What are the working hours of RetroFoam of East Tennessee?

Accepted Answer

They are open Monday through Friday from 7:00 AM to 4:00 PM and closed on Saturdays and Sundays.

Question 20

Are there interesting places near RetroFoam of East Tennessee that I can visit before or after my insulation service?

Accepted Answer

Yes, nearby you can visit Parkside Vintage Market for vintage shopping, Traditional Shaolin LLC if you're interested in martial arts, and Electric Medic for pharmacy and electrician services, making it convenient to combine errands or leisure with your insulation appointment.

Question 21

How can other nearby contractors and home improvement stores assist me alongside services at RetroFoam of East Tennessee?

Accepted Answer

Nearby contractors like G.E.S. Custom Remodel LLC and Green Home Installations offer remodeling and roofing services that complement insulation work, helping you coordinate home improvements efficiently.

Question 22

What automotive and customization services are available near RetroFoam of East Tennessee?

Accepted Answer

If you need automotive repair or customization, places such as Precision Window Tint Seats N Stuff and Polish Masters Auto Spa nearby offer car window tinting, auto detailing, and body shop services that you might use alongside your home service visit.

RetroFoam of East Tennessee

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