Link to huamei
When considering insulation for your home, there is more to think about than just comfort and saving money &#; things like fire rating should be at the top of the list.
So, what is the fire rating for insulation exactly?
Class 1 Fire Rated insulation is what most inspectors call for in a home. To get this rating, the insulation material must have a smoke development that is less than 450 and a flame spread index that is 25 or less, according to the Michigan Residential Code R302.10.1.
It&#;s important to note that an insulation material that has a Class 1 Fire Rating is the most fire-resistant, not fireproof.
RetroFoam of Michigan has been installing injection and spray foam insulation since in homes across the Lower Peninsula. Both the spray foam and RetroFoam injection foam we install in homes are Class 1 Fire Rated.
This means foam insulation doesn&#;t serve as a catalyst if there were a fire and will self-extinguish when the flame is removed.
In our ongoing efforts to educate homeowners, let&#;s talk more in-depth about what fire rating is and some of the requirements for insulation.
What is Fire Rating?
The fire rating system for insulation is basically how long the material can withstand a standard fire resistance test.
The Class 1 Fire Rating definition is the flame spread index and smoke development index, which means how fast a flame will spread when introduced to the material and how much smoke it produces. Building inspectors and code require the numbers stated above to reach that Class 1 Fire Rating &#; 450 or less for smoke development and less than 25 for flame spread.
While Class 1 Fire Rating is the best, there are other ratings that follow but also signify a lower fire resistance of the insulation material.
This standard is universal for any insulation material being installed in your home.
Some foam insulations are inherently at that required mark, so by itself, in some cases, it meets those standards. Traditional insulations like cellulose and fiberglass have additives that help them reach that mark.
Fire Rating for Insulation Requirements
Certain materials, like foam insulation, have requirements when it comes to the fire code.
The code states that because foam insulation is a plastic, it has to be separated from the living space. That separation from the living area is as simple as the drywall in your home.
This only applies to areas that are lived in, so it&#;s not the case for attics or crawl spaces. This separation is required because there are foam insulation materials on the market that are flammable, while there are others, like the products we offer, that don&#;t act as a catalyst and even some materials that are actually fire-retardant.
These older foam products are the reason why the code calls for foam plastics to be separated from the living space, even though most materials have evolved since then. In reality, the foam insulation we use is more fire-resistant than the wood the house is built from.
It gets a little tricky when you look at other materials like cellulose and fiberglass. Those materials don&#;t have the same requirements because they aren&#;t plastics.
Cellulose is inherently made of flammable materials like newspaper and denim, but the chemicals added to it actually make the premium products on the market so they can&#;t ignite at all.
Contact us to discuss your requirements of class 1 insulation rubber foam. Our experienced sales team can help you identify the options that best suit your needs.
When fiberglass is tested, only the material itself is tested. What&#;s not included in that testing is the craft paper backing that fiberglass batts have. If you were to have a fire, the fiberglass fibers melt, creating a heat source. This heat will cause the craft paper backing to ignite.
Choosing the Right Insulation for Your Home
Fire rating for insulation is important for the safety of your home.
Now that you have a better understanding of the rating system, you're probably feeling more inclined to continue your research into home insulation and foam insulation specifically.
If you want to learn more about foam insulation, its benefits, and how it can keep your home comfortable and healthy, head on over to the Learning Center on our website.
Related Articles
Is Spray Foam Insulation Safe to Have in My Home?
8 Things to Do After a House Fire
What is an Ignition Barrier, and When is it Needed with Spray Foam?
UL Class 1 vs UL Class 2
UL Class 2 drivers comply with UL, which means that their output is considered safe for contact and that no major safety protection is required at the LED or luminaire level. There are no risks of fire or electric shock. The drivers operate with less than 60 volts in dry applications, 30 volts in wet applications, less than 5 amps, and less than 100 watts. Nevertheless, these limitations limit the number of LEDs that can be driven by a Class 2 driver.
UL Class 1 drivers have output ranges outside UL Class 2 designations. A LED Driver with a UL Class 1 rating has a high voltage output and safety protection is required. It is more efficient to use a Class 1 driver than a Class 2 driver because it can accommodate more LEDs.
Additionally, there is often confusion regarding the difference between ac-dc power supplies rated Class 2 and Class II. There are significant differences between the two and it is important to understand them. The NEC (National Electric Code) identification of Class 2 refers to the output voltage and power capabilities of ac-dc supplies, whereas the IEC (International Electrotechnical Commission) designation of protection, Class II, refers to a power supply's internal construction and electrical insulation.
Class II and Class2 Product
IEC Class II and Class I Insulation Protection
In order to protect users from electrical shock, IEC protection classes govern the design and insulation of power supplies. There are two layers of insulation (or one layer of reinforced insulation) between the user and the internal conductors of a Class II power supply. The first layer of insulation in supplies that have two layers of insulation is usually referred to as "Basic Insulation." The second layer of insulation is often an insulating case enclosing the product, such as the plastic case found on wall mounts and desktop power supplies.
Wire insulation is an example of basic insulation.&#;To reduce the possibility of electric shock, IEC Class I input models must incorporate a protective earth connection (ground).
Label showing the IEC protection Class II symbol
IEC protection Class II power supplies use a two-wire power cord rather than a three-wire power cord (Class I) with a Safety Earth connection. Typically, products designed with Class II insulation will be labeled as "Class II" or "double insulated" or will have the concentric square symbol on the safety label. Likewise, it looks similar to the Chinese character "&#;".
In brief, the table below shows the difference between Class I, Class II, Class 1, and Class 2.
Are you interested in learning more about foam rubber supplier? Contact us today to secure an expert consultation!
Classify Class1 Class2 Class I Class II Authority NEC NEC IEC IEC Insulation Electrical limitation Electrical limitation basic insulation Double Insulated Symbol UL UL / &#; Characteristic Power&#; Volt-Amps Voltage&#;60(Dry) three-wire power cord two-wire power cord