Are Insulation Batts Fireproof? All Answers Here

If you are searching for the answer to “are pink batts fireproof?” you need to understand what classifies an object as fireproof. A fireproof building material is one that can withstand heat and resist burning. Such building components can still resist fully developed fires while still performing their intended function. Noteworthy, fire resistance as a form of fire rating, is also applicable to building elements like Pink Insulation Batts and Mineral Wool. 

Below is a scrutiny. 

Pink Insulation Batts – What Pink Insulation Batts are Made of

  • Fiberglass Insulation

Pink Batts are a product of lightweight, resilient glass wool. They’re purposely designed to offer thermal insulation of walls and ceilings. That is why they’re non-combustible and have low allergen levels, guaranteeing quality performance in any building. Besides being effective sound absorbers, these building materials significantly guarantee acoustic and thermal comfort to building occupants.

The Insulation Batts are well-stiffened to ensure they fit snugly between wall studs.  They are available in a wide range of R-values and sizes. That means there’s always an efficient and effective Fiberglass Insulation Batt for your application. Noteworthy, they’re to be installed during construction, before the internal lining is fixed. 

  • What Makes Them Pink?

Pink insulation batts are recognized by their iconic and attractive pink color. The pink color dates back to 1938 during its invention by the Owens-Corning company. The coloring was a distinctive way to increase the aesthetic appeal of the material and also give it a “visible” market name.

What most people don’t know is that the pink color develops during the manufacturing process. Where, 80-percent recycled glass is mixed with soda ash, limestone, and sand. The mixture enters a melter where it melted at 1200°C temperatures to become liquid. The liquid is put in spinners where the glass fibres begin to form. These fibres are sucked onto a conveyor, thus forming glass wools. During this process, the fibres continuously change their form and color, thus the pink coloring.

Are Pink Batts Fire Resistant?

Pink Batts are non-combustible building materials. Before they’re sold to the market, these materials are combustibility tested by CSIRO, Australia. The non-combustible nature of the Insulation Batts is ascribed to the simple fact that glass wool is often manufactured from 80-percent recycled glass. The window glass melts at temperatures above 600°C. 

This non-combustibility characteristic means that the insulation batts will reduce and not increase the spread of fire. Additionally, the fire-resistant material can resist whatever causes insulation degradation. This in turn, makes you rest assured that your loved ones are safe. It also gives you peace of mind knowing that your expected return on investment won’t be damaged by regular adjustments and replacements.

What is its Insulation R-value?

R value determines the effectiveness of an insulation material. This value measures an insulation’s resistance to heat flow. That said, the higher the R-value, the more resistant a building material is to fire flow. Glass wool is undeniably the best heat insulation material boasting a high R-rating level per thickness. 

Since Pink Insulation Batts are a product of Glass wool, they have a higher R-rating level than many other common insulation materials. Insulation batts for a standard 2 by 4 wall are present in high, medium, and low densities, with a rating that ranges from R11- R15. That means that even thin cavities of Pink Insulation Batts can offer significant insulation in a building, thus reducing the heating costs.

Most Fireproof Type of Insulation Batt ~ Mineral Wool

Not all insulation batts are made out of fiberglass. That means, there are other types of insulation batts that have varying levels of fire resistance. Let’s take a look at mineral wool!

What is mineral wool made out of?

The building material is a non-metallic and inorganic product. It is made from a controlled mixture of different raw materials, consisting of either silica or stone. The mix is heated to very high temperatures until molten. Next, the molten stone or glass is spun to form a flexible and fibrous mat that is further processed into finer finished products. 

The exceptional acoustic, thermal, and fire-resistant properties come from the inert chemical composition and mat fibres of mineral wool. The fibres are durable, lightweight, and high performing in the cases of fires. They prevent air movement and limit burning.

Why is it so Fire Resistant?

Mineral wool provides some extra minutes to delay fire from spreading. This not only limits a property’s destruction but it greatly helps to save lives. The fire protection nature of mineral wool is attributed to its non-combustible nature. It resists ignition and burns more slowly, even when it comes in contact with flames. Mineral wool meets the ISO 1182 standard and thus, doesn’t conduct heat. Amazingly, this building material resists temperatures higher than 1,000°C. 

With this, they’re an ideal choice for fire-retardant uses like acting as ceiling coverings, sheathing building girders and supports, and partitioning walls and doors for fire prevention. Additionally, the wool’s impressive qualities make it an ideal option for use in high-risk environments like petrochemical refineries and offshore oil rigs. 

What is the R-value of Mineral Wool?

The R-value of mineral wool ranges from 3.7 – 4.2 per inch per thickness. The building material is available in different thickness levels and densities. This rating also varies depending on various facings and product types. From what the R-value reflects, it is undeniable that mineral wool features a high insulating performance. This translates to a high and more reliable resistance to the flow of heat guaranteeing users of energy savings and an all-year-round house comfort. 


Ask the experts; Safe repair or construction includes the application of fireproof building materials like Mineral Wool and Pink Insulation Batts. This topic may not be a debate of whether a structure can be damaged by fire, but a concern of when this can happen. While it’s almost impossible to construct a completely fireproof house, it is advisable that homeowners take precautions by relying on the fire-resistant materials. This will help save lives and property.