Fiberglass insulation

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 Fiberglass is used for insulation because it's a strong, lightweight material that's a poor conductor of heat. It's made of tiny glass fibers reinforced by a plastic matrix, and it's been used in construction for over 80 years. Here are some reasons why fiberglass is used for insulation: 

• Energy efficiency Fiberglass can help reduce heating and cooling bills by 40–50%.  
• Cost-effective Fiberglass is one of the most inexpensive insulation materials, and it's easy to install. 
• Fire retardant Fiberglass is a natural fire retardant, and some types are treated with additional fire retardants for added safety. 
• Noise reduction Fiberglass has natural sound-dampening properties, and it can be used in walls, ceilings, and ducts to reduce sound transfer. 
• Eco-friendly Fiberglass is made from recycled materials, including at least 35% recycled glass. 
• Easy to install and remove if you need to upgrade your home in the future