Contra Culture Mag

Types of Attic Insulation Material

A well-insulated attic is essential for a comfortable home whether it’s big or small or made of different materials. Insulation for attics comes in a variety of forms. A single solution is not right for everyone for optimum insulation since there are several factors involved.


It is not the best insulating choice, but it’s by far the most common. Fiberglass insulation offers some benefits such as:

  • It is inexpensive and widely available.
  • It has a great resistance to moisture, which makes it particularly desirable in humid climates.
  • It does not get smaller over time.
  • It’s not flammable.
  • Insects will avoid eating it.


A common material used for cellulose insulation is wood or recycled paper, and it is frequently marketed as green. This attic insulation (called ฉนวนกันความร้อนใต้หลังคา in Thai) is flammable by nature and is treated with chemical treatments that make it non-flammable. Cellulose is still a relatively inexpensive material, but it is generally 25% less expensive than fiberglass insulation.

Mineral Wool

It contains melted-down stone and repurposed steel mill slag. Despite being more expensive than fiberglass, mineral wool offers the following advantages:

  • It does not start to burn until it reaches 1,800 degrees Fahrenheit.
  • It is water-resistant and will continue to insulate despite the worst moisture leak.
  • It is exceptional at keeping outside noise at bay.

Cotton Insulation

Recycled blue jeans are used to make cotton insulation. The cost of denim insulation is higher than that of mineral wool. Besides the novelty of hanging old blue jeans in the attic, cotton insulation is a useful option for a variety of reasons:

  • It is high in performance because it retains heat well.
  • Safer to handle and install.
  • Won’t irritate your skin or cause any issues if you inadvertently breathe it in during installation.


When it comes to insulating performance, foam is the undisputed champion. The following are some of the advantages of foam:

  • Best air leakage prevention also prevents the spread of airborne pollutants.
  • Enables you to extend your building envelope to your attic’s roofline.
  • Water cannot pass through or be absorbed by it.
  • Mould and mildew are inhibited by the polymer in them.
  • Remains effective even when temperatures drop significantly.
  • Acts as a sound barrier.


Certain attics will be more suited to particular types of insulation than others. Each type of insulation has its advantages and disadvantages. Make sure you consider both the benefits that have made them so popular as well as the drawbacks.

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