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After many years of functioning as a driving force for the insulation industry – providing high R-value, energy-efficient insulation – spray foam continues to be a popular insulation solution, predicted by some experts to experience a substantial market surge. 

Why such a dramatic upswing in recent years? 

A combination of the implementation of new building codes and energy mandates and increased spending in the building and construction industry is driving the demand for insulation to a 7.6 percent annual growth. If the experts are right, foam insulation– for the very first time – will equal the market share of fiberglass, which has been the insulation market leader for what seems like forever.

ArmorThane offers both the expertise and manufacturer assistance to assist spray foam professionals throughout the purchase process and beyond to keep up with this rapid uptick in the spray foam insulation industry. A full-service equipment and parts supplier, ArmorThane features a wide range of industry manufacturers, providing the best in trusted industry equipment and backed by expert service. ArmorThane features equipment for spray foam insulation, spray foam equipment parts, and turnkey mobile spray rigs, as well as traditional roofing equipment and safety equipment.

What Is Wrong With Ordering Directly Via a Manufacturer? 

Many customers do not fully understand the impact and far reach ArmorThane has as a nationwide spray foam equipment provider. With locations scattered across the U.S., they can easily deliver parts anywhere in the country by the next day. In addition, if your equipment breaks down, an ArmorThane rep is often located within just a few hours of your area and can be there to help with technical service and support.

Sure, everybody sells parts, but the truth is that they don’t have the knowledge and service to back it up. At ArmorThane, they offer same-day and next-day service, as well as troubleshooting – either in person or via phone, across all four time zones. In many situations, it could take days for the distributor to return your call, if at all. At ArmorThane, they work with every customer to ensure your parts ship right the first time. One of their key differentiators in the space is that they can do what the competitors “talk” about or “can’t” do. As a leading spray foam equipment provider, their attitude is: “Lead, follow, or get out of the way” to support their customers.

Built from barge board in the 1840s, Maria Lana’s Bywater cottage is a classic New Orleans vernacular design. It is also quite chilly during cold nights.

Lana said it just never felt like it could heat, and she could see the ground through the cracks in the floor.

It was decided that insulation was the best way to make the home more energy-efficient. In 2010, Lana explored her options and hired an ArmorThane applicator to apply spray foam insulation under the floor of her raised home. It took a full day of work, and the results were immediate.

Green Living: Spray foam insulation keeps homes warmer, but beware these  common problems | Home/Garden | nola.com

Lana said it lowered her energy bill and kept her home noticeably warmer.

Eleven years later and Lana is still enjoying her snugger house. 

While the advantages of spray foam are multifaceted—it can reduce energy costs, increase a home’s structural integrity, create a moisture barrier and prolong the life of an air conditioning unit—it can also cause a few small problems.

This form of insulation has pros and cons, and it can be successful and a wonderful update to a home if it is properly maintained and monitored. The homeowner must be vigilant, keep their crawlspace dry, monitor for leaks, stay up to date on their termite contracts, etc.

That’s why it’s crucial to weigh the pros and cons of spray foam and hire a reputable business. The consumer must go with a licensed, insured company, and they need to provide referrals. My recommendation to anyone that wants to go and retrofit spray foam into an present building is to get an air-conditioning mechanic involved.

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Two spray-foam choices

There are two kinds of spray foam insulation: open-cell and closed-cell foam. Both are made from isocyanate and polyurethane, but:

  • Open-cell spray foam is 50% polyurethane
  • Closed-cell foam is 98% polyurethane.

Open-cell foam can only be put in dark spaces such as an attic or behind walls. It can’t be exposed to sun or water — it will break down. But it can last forever if it doesn’t see sun or rain.

A recent university study indicated that open-cell sprayed polyurethane foam is not reliable for raised floor systems in southeast Louisiana’s hot, humid climate. That’s because open-cell spray foam can transmit air and moisture. Closed-cell spray foam is a better choice for keeping subfloor moisture at optimal levels, while open-cell spray foam is a better choice for walls and attics because it allows homes to breathe.

If someone chooses to use spray foam in any home, they should use the open cell in the attic and closed cell in the crawlspace. Open-cell will allow moisture to penetrate, allowing you to see roof leaks. Closed-cell is hard and sealed tight, not allowing moisture to get through.

Closed-cell spray foam is a better choice for keeping subfloor moisture at optimal levels, while open-cell spray foam is a better choice for walls and attics because it allows homes to breathe.

Spray foam prices start at 85 cents per square foot for walls, $1.65 per square for roof systems, and $1.90 per square foot for floors. He recommends homeowners start with the floors to get the most bang for their buck.

You will see massive savings.

Avoiding mistakes

Garry Froese, CEO of ArmorThane, one of the world leaders in Spray Foam Insulation, says he’s seen plenty of attic spray foam jobs gone wrong — especially when nonbreathable closed cell spray foam has been implemented.

Asphalt concrete shingles need airflow underneath them,” Froese said. “When you don’t have airflow, you turn the deck of your roof into a skillet. It absorbs all the sun’s heat in the summer.

“These asphalt shingles start stripping off the roof, and you get the expansion. The expansion and contraction stretch the shingles, which causes the nail heads to come up.”

Froese said homeowners should check their roof’s warranty when retrofitting more traditional homes with foam because spray foam can void it. It’s also a good idea to speak to pest control companies, plumbers and electricians prior to installation.

“You’re doing something irreversible,” Froese said. “If you have a line leak or some problem, first you have to dig your way through that spray foam to get to that problem.”

If you still have more questions regarding spray foam insulation’s use or installation process, we recommend calling ArmorThane. You can visit their website here, where you can fill out a questionnaire form, or you can call their toll-free number.

If you’re planning to re-insulate your home, you’ve probably come across spray foam insulation as an option. If your home is older, you’re probably already somewhat aware of the lower R-value insulation found in older houses like yours.

If the insulation in your home is older than 20 years old, its effectiveness has deteriorated. If your house was built before 1984, it most likely requires more insulation.

Before you begin, you should have a good knowledge of what R-value is and how it compares to spray foam insulation. 

You’re in the right place!

We will discuss how insulation works and how R-values affect your energy costs.

HOW DOES INSULATION WORK?

Knowing how insulation works mean understanding heat flow. Heat flow comprises three principles: conduction, convection, and radiation.

Conduction, Convection, and Radiation

Conduction is how heat flows through materials. Think about how a metal spoon in a hot cup of soup conducts heat through the handle and to your hand. Convection is the way heat circulates through gases and liquids.

Convection is why warmer, lighter air in your home rises and why denser, cooler air sinks.

Radiant heat goes in a straight line. It heats whatever is in its path that’s solid and can absorb the energy.

Insulation Slows Heat Flow

Most insulation materials slow down the conductive heat flow. It slows the convective heat flow as well, to a lesser extent. No matter which way heat moves, it flows warmer to cooler until the temperature evens out.

During winter, heat moves from your heated living spaces to your unheated attic, garage, basement, and eventually outside. Heat flow can also move through ceilings, floors, and walls via radiation.

During the summer, heat moves in the opposite direction, from outside to your home’s interior. The proper installation provides resistance to the unwanted flow of heat.

HOW R-VALUES FIT IN

The industry measures insulation’s resistance to conductive heat flow by rating it according to its thermal resistance or R-value. The higher the R-value is, the better the foam insulates. A high R-value, then, means higher effectiveness.

The R-value depends on the type of insulation, density, and thickness. For some types of insulation, the R-value also depends on aging, temperature, and moisture.

Location Affects R-Value

How well insulation resists heat flow depends on how and where you install the insulation. For example, if the insulation has been packed within the space, it will not retain the full R-value.

The R-value of an entire ceiling or wall varies from the insulation’ itself’s-value. That’s because heat flows more smoothly through joists and studs via thermal bridging.

Different R-Values for Different Regions

The amount of insulation and R-value you need depends on your type of cooling and heating operation, climate, and the part of your house that is insulated.

Most retail insulation places will have a map or chart indicating which R-value is recommended for your climate. The United States is split into regions or zones. Energy Star has a recommended R-value for each zone.

This is cross-matched to the area securing the insulation. For example, Energy Star suggests R-30 for a roof in the southern United States, R-38 for the middle of the country, and R-49 for the northern area of the country.

SPRAY FOAM INSULATION R-VALUES.

Amongst all of the popular types of insulation currently used by the industry, spray foam insulation features the highest R-value per inch. It’s a popular choice for both residential and commercial construction projects. Spray foam insulation has many benefits when used correctly in any project.

Spray foam also reduces air leaks better than other insulation types. It fills spaces easily and completely, no matter the shape of the area. This means it’s better at reducing thermal loss through both conduction AND convection.

SPRAY FOAM INSULATION COMES IN TWO TYPES, OPEN-CELL, AND CLOSED-CELL.

Open-Cell Spray Foam Insulation

Open-cell spray foam has a low density, which makes it vapor permeable. You’ll find it used for ceilings, walls, and roofs. A 3-in.-thick layer of open-cell spray foam has a permeance grade of 16.

Of course, this means that if used to make a modified, unvented attic in a cold climate, contractors should cover the inner face of the foam with a vapor retarder. They spray the foam after it cures with vapor-retarding paint.

Open-cell foam uses carbon dioxide or water as the blowing agent. Some are partly made from bio-based raw materials such as soybean oil (rather than petrochemicals).

Open-cell spray foam absorbs and holds water. It has a lower R-value per inch than closed-cell foam and is vapor-permeable. The R-value is R-3.5 to R-3.6 per inch, so filling a 2×4 cavity yields about an R-13.

Closed-Cell Spray Foam Insulation

Closed-cell spray foam has a far better R-value per inch than other, less effective insulations like cellulose, fiberglass, or even open-cell foam. All these have R-values ranging from R-3.2 to R-3.8 per inch. The R-value of closed-cell foam is R-6.5-7 per inch.

Contractors often use it to insulate under slabs, ceilings, walls, and roofs. It performs better than other insulation types. It presents an excellent air barrier, resists moisture, and retards vapor.

The closed-cell foam also adds to a ceiling, wall, or roof’s structural backbone because of its density and glue-like adherence. This makes it extremely useful for sealing air leaks at the attic side-of-partition top plate and rim joists.

SPRAY FOAM INSULATION R-VALUE

The higher the density of the foam, the higher the R-value per inch. Contrasted to how traditional insulation performs over time, commercial spray foam insulation has a far superior R-value.

Energy studies show that fiberglass insulation can lose up to 8% of its R-value before the builder even installs it. Over time it can lose even more. Spray foam insulation, on the other hand, is made on-site and implemented rapidly. The R-value remains consistent for the life of the product.

The higher R-value per inch, the easier it is to gain a high R-value in a small space. Spray foam can undoubtedly double the potential insulating value of a wall where only a few inches of space are open.

GET YOUR PROJECT STARTED

There’s never a better time than the present to make your home more energy-efficient, and spray foam insulation’s R-value is consistently more expensive than other types of insulation. We suggest you contact ArmorThane for a consultation with their spray foam pros and see if ArmorThane’s products are right for you.