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  • Writer's pictureAll Seasons Team

Sheep's Wool Insulation: The Natural Choice for Efficient and Sustainable Homes

Updated: May 18, 2023


In recent years, there has been a growing interest in sustainable and eco-friendly insulation solutions. One such option gaining popularity in the UK is sheep's wool insulation. In this blog, we will explore the pros and cons of sheep's wool insulation compared to traditional glass fibre insulation, including the cost difference. We will also discuss situations where sheep's wool insulation is particularly beneficial and why it might be the right choice for your home.

Pros of Sheep's Wool Insulation:

1. Sustainability: Sheep's wool insulation is a natural, renewable resource, making it an eco-friendly choice. It is derived from a renewable source and has a low carbon footprint, contributing to a more sustainable environment.

2. Excellent Thermal Performance: Sheep's wool insulation has excellent thermal insulation properties, effectively reducing heat loss and improving energy efficiency in homes. It helps maintain a comfortable temperature throughout the year, reducing the need for excessive heating or cooling.

3. Moisture Regulation: Sheep's wool has a natural ability to absorb and release moisture, helping to regulate humidity levels in the home. This property can prevent condensation and reduce the risk of mold and dampness, creating a healthier living environment.

4. Acoustic Insulation: Sheep's wool insulation provides excellent sound absorption, reducing noise transmission between rooms and from external sources. This can significantly improve the acoustic comfort within your home.

Cons of Sheep's Wool Insulation:

1. Higher Initial Cost: Sheep's wool insulation generally has a higher upfront cost compared to traditional glass fibre insulation. However, it is important to consider the long-term benefits and energy savings it offers, which can help offset the initial investment.

2. Limited Availability: Sheep's wool insulation may not be as widely available as traditional insulation materials. However, its popularity is growing, and more suppliers are offering this sustainable alternative.

When to Choose Sheep's Wool Insulation:

1. Allergy Sensitivities: Sheep's wool is a natural material, making it an ideal choice for individuals with allergies or sensitivities to synthetic materials commonly found in traditional insulation.

2. Historic or Listed Buildings: Sheep's wool insulation is often recommended for historic or listed buildings, where the use of sustainable and natural materials is preferred to maintain the authenticity and character of the property.

3. Thermal Bridging: Sheep's wool insulation is particularly effective in reducing thermal bridging, which occurs when heat escapes through gaps and weak spots in the insulation layer. Its fibrous structure helps fill voids and gaps more efficiently, minimizing thermal bridging.

4. Eco-Conscious Homeowners: If you prioritize sustainability and reducing your carbon footprint, sheep's wool insulation aligns with your values, providing an environmentally friendly option for insulation.


Sheep's wool insulation offers numerous benefits, including sustainability, excellent thermal performance, moisture regulation, and acoustic insulation. While it may have a higher initial cost compared to traditional insulation materials, its long-term energy-saving potential and positive environmental impact make it a worthy investment. Consider sheep's wool insulation for allergy sensitivities, historic buildings, thermal bridging issues, and if you strive to create a more sustainable home. Consult with insulation professionals to determine the best insulation solution for your specific needs.

Cheeky Sheep

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