How long does sheep wool insulation last?

Unlike alternative types of insulation that often lose form and slump as much as 25% over their expected lifetime, sheep's wool insulation lasts around 60 years. Sheep's wool will also maintain shape and insulation properties.

What are the advantages of sheep wool insulation?

Sheep's wool insulation is naturally sourced, produced, sustainable, and can be recycled. The structure of wool fibers makes it extremely efficient for both thermal and acoustic purposes. Sheep's wool insulation does not burn, and it contains proteins that absorb and neutralize harmful contaminants. Sheep's wool insulation is also excellent for regulating humidity due to its breathability.

What are the disadvantages of sheep wool insulation?

The primary disadvantage of sheep's wool insulation is that it costs more than other types of natural insulation. During processing, it also needs to be cleaned or disinfected for use, which can require the use of harsh chemicals.

Is sheep's wool insulation a good insulator?

Sheep wool insulation is an excellent sound insulator because of the natural structure of wool fibers. Sheep's wool is very dense and has an irregular surface and shape, making it very effective at absorbing sound.

Is sheep's wool insulation flammable?

Due to its high nitrogen content, sheep wool is naturally fire-resistant. Sheep's wool insulation will not ignite unless faced with temperatures exceeding 1040°F (560°C).

Is sheep wool insulation expensive?

Compared to conventional types of insulation, sheep wool is more expensive; however, sheep's wool does provide many advantages over alternative insulation. To determine the cost in your area, call your local supplier as it varies by location.

Does sheep wool regulate humidity?

Sheep wool is hygroscopic, meaning it can absorb moisture vapor without affecting its insulating capabilities (up to 33% of its weight). It’s breathable, can release moisture very well, and is an excellent choice for regulating humidity in spaces that are moist or face varying humidity levels.

Does sheep wool purify indoor air?

Sheep wool is a natural protein that contains multiple amino acids, and some can absorb harmful contaminants and react by neutralizing them through a process called Chemisorption.

Is sheep's wool insulation good?

Sheep wool is an excellent insulator due to the nature of wool fibers. The wool has millions of tiny air pockets that trap air and protect a home from extreme temperatures. It has a low thermal conductivity meaning it doesn’t allow heat or cold to pass through.

Is sheep wool insulation safe?

Sheep wool is safe, non-toxic, flame-resistant, and can purify the air by absorbing harmful contaminants and neutralizing them. It’s not an irritant, so it doesn’t require special equipment to install.

Is sheep wool insulation sustainable?

Sheep's wool insulation is a sustainable and renewable product that is 100% naturally produced by sheep. Very little energy is required to manufacture sheep wool insulation other than washing the product, packing it together, and shipping.

In-Depth Product Guide

Sheep's Wool Blown-In Insulation

FAQs

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Sheep's wool blown-in insulation is loose fill insulation that is produced from sheep wool fibers. It can be used in homes and provides excellent thermal and acoustic properties.

Sheep's wool has a number of benefits

It's a high-performing insulator
Non-toxic
Safe to install - you don't need to wear a mask, gloves or protective clothing
Has a longer lifespan the most alternatives
Does not support mold growth

It's also 100% natural, renewable and sustainable. Sheep's wool insulation is available in batt or blown-in.

There are no known health issues associated with sheep's wool blown-in insulation, unlike some mineral wool products. Pricing, quality, and fire resistance between manufacturers can vary greatly. If you are concerned about the total embodied energy, it's important to understand where the wool was sourced and the manufacturing process.

Sheep's wool batt insulation is a sustainable and renewable product. It is 100% natural and requires very little energy to produce. Wool is also a keratin and, therefore, does not support mold growth.

The first recorded use of sheep's wool for insulation was by Mongolian nomads. They used felted or woven wool from sheep to insulation the floors and walls of their homes, called ger or yurts.

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