Lewis Insulation Blog Posts

Insulate Your Home for Summer: After All, It’s National Home Improvement Month!

May is National Home Improvement Month. So, why not include residential insulation in your Twin Cities home improvement plans? Spring is actually a great time of year to consider replacing and installing your home’s insulation. When some people think of residential insulation, they assume it’s only important when they need to keep their homes warm. But insulation also serves plenty of other purposes. It can help reduce the amount of outside noise you hear in your home, and it can also help keep your home cool in the summer. It can even help lower the cost of your utility bills. At Lewis Insulation, we are trusted residential insulation experts and can think of several reasons you should make sure your home’s insulation is ready to take on the summer months ahead.

residential insulation

Proper Ventilation

Ventilation is what helps get rid of the heat and humidity, drawing it out of your home. Proper residential insulation and ventilation play a key role in making sure this heat and humidity do not build up in your attic. And, insulation is what helps to keep the heat from the sun from entering your home in the first place.


Humidity can get trapped in your attic due to the fact that heat rises. In order to cool down the home, the humidity and heat need somewhere to go once they reach your attic. Otherwise, your entire house can get uncomfortably hot. And, when you try to counteract this heat and humidity, you might end up running your air conditioner much more than you would have otherwise, leading to higher cooling bills.

Residential insulation contractors like the ones here at Lewis Insulation can come to your home to install the best kind of insulation that will help keep your home comfortable year-round. We can be sure the insulation we install will help keep your home comfortable no matter the season. And, May is a great time to do it! It’s before the intense heat hits and after the cold winter weather has gone.

There are many different factors that our residential insulation experts will look out for when deciding on what kind of insulation is best for your home. We will go over all of the options with you so that you are able to make an informed decision. After all, we offer a variety of insulation types including:

  • Fiberglass
  • Cellulose
  • Closed cell spray foam

Give us a call and rest easy knowing your home will stay cooler this summer. For more information about residential insulation in the Twin Cities, call us at Lewis Insulation at 763-477-2612 or you can contact us for a Free Estimate.

The Many Benefits of Hiring a Commercial Insulation Contractor

At Lewis Insulation, we frequently receive questions from business owners about whether or not they really need to worry about properly insulating their commercial building. We are a commercial insulation contractor for Minneapolis and pride ourselves in our decades of providing reliable, high quality service for Minneapolis and the surrounding area. Although we specialize in residential insulation, we do offer some commercial services.

commercial insulation contractor

At Lewis Insulation, a commercial insulation contractor, we know a thing or two about the types of benefits insulation can provide. When it comes to your business, just like your home, don’t you want to ensure it’s not only energy efficient for lower energy bills but that it is also safe and comfortable? These are just a few of the reasons to consider hiring a commercial insulation contractor for your businesses. And, we would like to provide you with a few more:

  • Interested in absorbing sound? A recent survey by Cambridge Sound Management revealed that 30% of office workers are distracted by coworkers’ conversations. These types of noises can even affect the productivity of workers. Hire a commercial insulation contractor and they can help your building absorb noises and provide something of a mute for loud noises coming from outside. All in all, an insulated building is a more peaceful, comfortable place for workers to operate in.
  • Does your business or residence include a metal building or structure? These types of buildings are frequently found in the housing of animals (livestock), the protection of equipment (agricultural) and other general industrial tasks. A commercial insulation contractor can install insulation to provide a wide array of benefits for metal buildings. Because however hot, cold, or humid it is outside; without insulation, your commercial building will reflect that temperature to an even more extreme degree.
  • Going green is not just a trend. Many consumers now go out of their way to find companies who are sustainable and environmentally responsible. It is important your building is operating in an environmentally friendly manner and proper insulation is a key part of that. If your building’s heating and air conditioning is leaking, you not only create a larger environmental impact, but a larger impact on your wallet as well.

Our commercial insulation contractor is here to help you reap the many benefits of quality insulation. For more information about our commercial insulation contractor in Minneapolis, call us at Lewis Insulation at 763-477-2612 or you can contact us for a Free Estimate.

The Many Benefits of Replacing Your Attic Insulation

Attic insulation in the Twin Cities is so important for so many reasons. With our cold winters and hot, humid summers, keeping your attic properly insulated keeps heat and air conditioning in, cutting energy bills by a possible 30%. But, just because you have insulation in your attic already, it does not mean it is doing what it was designed to do. Having your attic insulation assessed and upgraded can not only save you money, but improve a variety of other possible complications that can come with old, outdated insulation. At Lewis Insulation, we install high-quality fiberglass, foam and cellulose insulation.

attic insulation

If your home becomes warm quickly in the hotter months or if the attic gets too cold during the cooler months, chances are you need new insulation. When you have the experts at Lewis Insulation upgrade your attic’s insulation, you can expect year-round comfort. As experts in the industry for over 35 years, we have put together some of the many great benefits of replacing your attic insulation. Explore some of the benefits below:


Did you know that today, nearly 60% of homes in the US are not properly insulated? By having your attic insulation replaced, you can essentially ensure you are not letting money escape through the ceiling. Reduce your energy costs and help keep your home cooler in the summer and warmer in the winter. Proper attic insulation can also allow for even temperature distribution within the home as well as provide moisture control, and contribute to a more environmentally-friendly footprint for your home. It even has the potential to increase your home’s resale value.


Old, damaged insulation in your attic can be hosting a number of contaminants left by rodents. Due to possible disease and bacteria, these contaminants can be incredibly harmful to you and your family’s health. These contaminants can even grow and spread throughout the home if not put in check. If there is an odor present, you might very well need new attic insulation, as your current insulation may have been affected by rodents or other pests.

attic insulation

A Sound Structure

Old attic insulation can even begin to affect the structure of your home. Many of us adopt an ‘out of sight, out of mind’ mentality when it comes to attic insulation. However, ignoring your insulation can cause damage to beams or wood frames where rotting or mold can occur. To ensure the structure of your home, consider having your current insulation removed and new insulation installed as soon as possible.

Call the experts at Lewis Insulation today! We can assess your attic insulation situation and recommend the best type of insulation for your home or business’ specific needs. We take pride in the work we do. Take a look at our project gallery and see the quality of high caliber work we provide.

Do you want more information on attic insulation in the Twin Cities? Call Lewis Insulation today at 763-477-2612 or you can contact us to get a Free Estimate.

Choosing Commercial Insulation for Your Building

Your business is important to you. You want it to be successful, to have employees you can depend on, and a building where you can get work done effectively. Consequently, it is important that your Maple Grove building be all it can be to keep working conditions that will always meet all the regulations. One way to do this is with reliable commercial building insulation. After all, in many states the type of insulation used must meet a specific code of energy standard known as continuous insulation (ci).

Commercial Building Insulation

The CI grade of commercial insulation is added as part of the building process to help prevent the steel thermal shorts that can minimize the energy efficiency of a building. It can be used in any type of construction, residential or commercial, but is a must for commercial properties. However, there are various types of CI ranging from the rigid foam insulation to spray foam to three in one products and systems. Failing to have the proper amount or type of commercial insulation can result in thermal bridging (aka thermal shorts) – when heat flows through the path of least resistance such as the surface of steel and wood stud framing.

Thermal bridging can be significantly minimized through the use of continuous insulation because it moves the dew point from a wall cavity to outside the cavity thus effectively reducing the potential for condensation to form inside the wall, which will minimize – if not eliminate – the risk of mold or mildew forming within the walls.

If you find yourself needing to decide what type of CI your commercial property needs, there are several considerations to be made. Here are a few:

  • Thermal Performance – Check out aspects such as the temperature limit, melting or fusion temperature, heat capacity or storage, and the resistance to thermal shock.
  • Physical Properties – Some considerations include density or porosity, abrasion, wear and tear resistance, mechanical strength and how it performs at high temperatures.
  • Chemical Considerations – If your facility will be using any type of chemicals, then you need to know if there is any risk of reactions between the insulation chosen and those items.
  • Cost – We all have budgets in business, and the Lewis Insulation team understands needing to keep the bottom line in sight. However, don’t just choose commercial insulation based on the price for the CI, installation, maintenance and repair or replacement potential. Choose CI based on what will be best for your company’s needs.

When it comes to starting a business, there are many decisions to be made. From the type of carpet to the style of architecture, and the paint colors to the type of building insulation, the number of decisions to be made can be overwhelming. However, once the decisions are made, you will be glad that you took the time to consider each aspect and determine what was needed.

So, as you determine your building’s insulation needs, be sure to give the pros at Lewis Insulation a call. Contact Us today for commercial building insulation in Maple Grove and surrounding areas.

Insulation and Proper Attic Ventilation

It is estimated that as many as 90 percent of American homes have moisture levels that exceed acceptable limits. Your home may benefit greatly from the installation of some insulation in your attic. Lewis Insulation can most certainly take a look as well as insulate your attic for you! If you feel your attic may be too wet and are considering attic ventilation for your Plymouth area home, give us a call!

Attic VentilationOne must precisely calculate the proper amount of venting needed to allow for proper attic ventilation. Insufficient ventilation leads to moisture issues during the winter months and cuts down on the overall efficiency of your energy usage during the summer months. It is normal to think that adding more insulation would assist in the overall effort to prevent winter and summer issues in attic ventilation. That is not the case, however.  Vents in the roof at points where insulation is installed allows for more opportunity for moisture to get in. Some venting is absolutely necessary on the roof but you do not want to add to it by installing more insulation. In fact, these seams can be the source of blowouts during hurricanes or be entry points for a wildfire.

So, just how much ventilation should you have in your attic? As a general rule, you should establish a 1:300 ratio in which every 300 square feet of ceiling space calls for 1 square foot of attic ventilation. Be cautious though, the elements—in control of air resistance—call the shots a bit also, possibly reducing ventilation area. Accessory items like grates, piping and others that sit on your roof may also be an issue in calculating and setting up true ventilation. Just any opening into the roof does not count as true ventilation.

Call us up at Lewis Insulation and we can certainly get you scheduled for a visit. We will come out and take a look to determine proper ventilation, whether you have it or not. Without exception, you should talk to a professional to determine what your home requires.

For more information on attic ventilation for your Plymouth home, call us at Lewis Insulation at 763-477-2612, or you can contact us and get a Free Estimate.

Insulate That Metal Building to Keep Temperatures Regulated

At Lewis Insulation, we are frequently asked by business owners whether or not they should consider installing commercial building insulation for their Minneapolis metal-based buildings. These types of buildings are in use in all forms of business, but are frequently found in the housing of animals (livestock), the protection of equipment (agricultural) and other general industrial tasks.

Commercial business insulation can provide a wide array of benefits for metal buildings which often are at the mercy of Mother Nature—however hot or cold it is outside it is proportionately hotter or colder than the outside air.

Take a look at the benefits that commercial business insulation can provide your metal building:

Absorb sound

The sounds that emerge within your metal buildings can echo loudly off of the walls and ceiling, creating a reverberation of sound in all directions. Installing commercial building Insulation can help absorb these noises within the building and provide something of a mute for loud noises coming from outside of the building. An insulated metal building is a more peaceful, comfortable place for workers to operate in.

Control moisture

The drastic ups and downs of temperatures as well as the dropping of dew points can cause condensation to arise on cool metal surfaces. Metal buildings experience this on cool mornings, often resulting in a damp interior as the moisture condenses on the ceiling, dripping to the floor below. Insulation the ceiling can help prevent this from unfolding, both in keeping a temperature buffer and/or catching the moisture within, should it seep through.

Reduce heat transfer

The transfer of heat is an issue in metal buildings, the extremes of temperature making heat a summer nuisance, cold a winter issue. Adding commercial building insulation can make for a warmer winter and a cooler summer within the metal walls once installation is installed as it helps reduce the metal’s heat transfer ability.

Rodent and bird nesting prevention

Having exposed beams and rafters that are desirable to rodents and birds (for nests), metal buildings are greatly benefitted by commercial building insulation. By filling in crevices with insulation, you can help deter these pests from making your building their new home.

No matter what type of metal building you want to add insulation to, Lewis Insulation has you covered. Whether you are part of the agricultural and farming industry or operate an airplane hangar—your barn, shed or other metal storage buildings likely require some degree of humidity and temperature control measures. We would likely install a spray foam type of insulation, applying wet and ultimately expanding into hard foam. A polyurethane blend, spray foam is perfect for the interiors of metal buildings.

For more information on commercial building insulation for your Minneapolis business, call us at Lewis Insulation at 763-477-2612, or you can contact us and get a Free Estimate.

The Science of Home Insulation

In order to comprehend how insulation works within your home, one needs to grasp the concepts of general heat flow and three instruments that make it happen: Conduction, Convection and Radiation.

  • Conduction—Ways in which heat moves through materials. Think of pulling an item out of the oven—the heat felt through the oven mitt is an illustration of conduction. Home insulation slows conductive heat flow.
  • Convection—Ways heat circulates through liquids and gases. Hot air rises, cool air sinks. Home insulation slows convective heat flow.
  • Radiation—Refers to heat traveling in a straight line, heating anything solid that lies within its pathway. Home insulation reduces the acquisition of heat. It is most effective when directed toward airflow.

As a general rule, air travels from warmer to cooler until there is not a measurable difference in temperature. Thus, during the winter months hot air moves from heated areas to the colder unheated areas of your home—wherever there is a difference in temperature. Cold temperatures outside create the need for warmth inside, thus your home heating system compensates for the loss of heat. The opposite occurs during the hotter months of the year, the cold air lost is balanced out by your home cooling system. Home insulation is integral in decreasing this flow by offering resistance to the movement of heat.

All types of home insulation come with an “R-Value”, a rating applied to an insulation type’s ability to resist conductive heat flow. The higher the R-value, the more effective it is at insulating your home and is dependent upon the type of insulation, how thick it is and the density. So, the more layers of insulation stacked together and/or the more insulation in your home increases the overall R-value and thus, the overall resistance to heat flow.

A couple of factors will influence the R-value of your insulation. It comes down to how and where the insulation is placed. If compressed, or placed within the ceiling the R-value will be lesser than if the same piece was lying out in the open air, due to thermal bridging (area of an object which has a significantly higher heat transfer than the surrounding materials resulting in an overall reduction in thermal insulation of the object or building). So, when open gaps in a building are filled with insulation, they reduce convective heat loss.

A radiant barrier, looked upon as non-traditional insulation, reflects away the heat rather than absorbing it. So, a radiant barrier contains no R-value—the ability to reduce heat by reflecting it way from a space is the power of this type of home insulation.

For more information on home insulation in the Twin Cities area, call us at Lewis Insulation at 763-477-2612, or you can contact us and get a Free Estimate.

FAQs about Fiberglass Insulation

lewis insulation fiberglass insulation eden prairieAs a company that installs fiberglass insulation in Eden Prairie and throughout the surrounding area, we get a lot of questions about it. So we thought we would take the time to answer some of the ones that we hear the most often.

Q: What is fiberglass insulation?

A: Fiberglass insulation is a type of residential or commercial insulation that’s made out of very thin strands of glass. It is a man-made material and has a high surface area-to-weight ratio that makes it an ideal insulator for residential and commercial buildings. Nowadays, fiberglass insulation does not irritate the skin like it used to, and the manufacturing it is more environmentally friendly than it used to be. Many manufacturers nowadays are using recycled glass.

Q: What does R-value mean, and why is it so important?

A: R-value stands for “resistance value” and it measures an insulating material’s resistance to heat flow. The higher the R-value, the greater the insulation power that material has.

Q: What benefits will I enjoy with fiberglass insulation?

A: Fiberglass insulation is a cost-effective way to insulate your home or commercial property. Not only could you see some savings on your heating and cooling bills, but it can also help reduce noise pollution. It is also non-combustible and non-absorbent.

Q: What parts of my home or commercial property should fiberglass insulation be installed in?

A: Fiberglass insulation can be installed just about anywhere in your house or commercial property other than in the basement. For your basement, you should consider closed cell spray foam insulation instead, which we can also install.

Q: Why should I choose Lewis Insulation to install fiberglass insulation?

A: We are a professional insulation company, and one of our specialties is fiberglass insulation. We have several decades of experience under our belts, and we are fully licensed, bonded and insured for all of the work that we do. You can get a free estimate on how much new fiberglass insulation will cost too. Our technicians show up on time, as scheduled, and do the work quickly but without cutting any corners. We have helped countless home and business owners throughout the past couple of decades, and we have many happy and satisfied customers.

Do you want to learn more about fiberglass insulation in Eden Prairie and throughout the surrounding areas? Call Lewis Insulation at 763-477-2612, or you can contact us to set up a Free Estimate.

Choosing the Best Commercial Insulation

commercial building insulation st paul lewis insulationIf you own a commercial property and you are looking into commercial building insulation for your St Paul business, then you might be wondering which specific type of insulation you should have installed. While you should consult with experts like us to get our advice on the best type of insulation for your specific commercial property, there are a few general guidelines to follow.

First, take a look at your building’s basement if it has one. While concrete floors do not offer much in terms of insulation, the interior walls can be insulated with closed cell spray foam insulation or another type of insulation. More often than not, basement walls have water pipes running through them, so making sure there is the correct amount of commercial building insulation in your basement walls could help keep those pipes from freezing during the winter. After all, no one wants to deal with a burst pipe if they don’t have to!

For the upper levels, there are a few factors to keep in mind when deciding on commercial building insulation. You will first need to figure out your budget. From there, consider other factors like the insulation’s R-value, how long you hope your new commercial building insulation will last and your commercial building’s specific envelope and construction type. Keeping all of this in mind, prioritize what is the most important to you. Do you prefer to have inexpensive insulation installed that you’ll have to have replaced within a few years? Or do you prefer to spend a bit more on your commercial building insulation knowing that it will last you for much longer than the less expensive option?

At this point, give us a call and let us know what type of commercial property you need insulated and what kind of insulation you are thinking of purchasing. We can visit your business and tell you if the type you want is the best kind for your commercial property. We will definitely keep your budget and other wants and needs in mind when making our recommendation. We can also give you more information on the types of commercial building insulation that we install, such as how long the installation process will take, how much disruption you can expect and how much your new insulation will cost.

For more information on commercial building insulation in St Paul, call us at Lewis Insulation at 763-477-2612, or you can contact us and get a Free Estimate.

What You Should Know about Closed Cell Spray Foam Insulation

lewis insulation spray foam maple groveClosed cell spray foam insulation is fast becoming one of the most popular types of insulation for homes of all shapes and sizes. There are plenty of reasons for its growing popularity: a high R-value, a lack of settling and more. Lewis Insulation specializes in installing closed cell spray foam insulation in Maple Grove and the surrounding areas, and here are a few things you should know about this type of insulating material.

  • Closed cell spray foam insulation has one of the highest R-values on the market today. The R-value of insulation indicates how well the insulation resists heat flow. The higher the R-value, the better it is at this resistance.
  • Closed cell spray foam insulation works well in difficult to reach nooks and crannies, like attics and crawl spaces since it is sprayed onto these surfaces.
  • This type of insulation is not a do it yourself type job. You need to be specially trained, and you need to fully understand how to properly mix the chemicals used. It also cannot be installed by someone wearing everyday clothes. Special gear and masks are used by the installation team. And it takes a practiced hand to mix the chemicals correctly so the spray foam insulation can be properly applied.
  • These chemicals will be applied in a thin layer, which later expands to form a thicker layer. This dense foam weighs about two pounds per cubic foot and is impermeable to water and moisture. This is great news for those who are worried about mold or mildew problems.
  • One of the best parts about closed cell spray foam insulation is that there is not a lot of waste material once the installation job is complete.
  • Closed cell spray foam insulation does not work well in every single climate, although our climate in Minnesota suits this type of insulation quite well.
  • Closed cell spray foam insulation can also help reduce noise pollution, which is great news for those who live near busy roads, airports or other noisy areas.

These are only a few reasons you should consider closed cell spray foam insulation. Call us and we can tell you even more!

Are you interested in learning more about closed cell spray foam insulation in Maple Grove? Call us at Lewis Insulation at 763-477-2612, or you can contact us and set up a Free Estimate.