Why Choose Havelock Wool Insulation

When it comes to insulating your home, workspace, or van, Havelock Wool Insulation stands out as a natural, high-performance alternative. Made from 100% sheep wool, it smooths out the shortcomings of synthetics and gives you a healthier, cozier space that lasts a lifetime. Below, we explore why this eco-insulator checks all the boxes for modern, sustainable living and green building.

What Makes Havelock Wool Different?

All Natural & Safe

Havelock adds a minute amount of boric acid (less than 1% by weight) as a non-toxic and safe deterrent against moths and beetles. It’s clean and safe for installers and occupants alike. Unlike synthetic or mineral-based insulations that can cause respiratory irritation or skin rashes, Havelock Wool is naturally hypoallergenic. This makes it an ideal option for homes with children, pets, or individuals with chemical sensitivities.

Sheep wool is also naturally pest-resistant thanks to the presence of lanolin, a natural wax secreted by sheep that deters insects. That means no chemical treatments are needed to keep rodents and bugs at bay, adding another layer of health and environmental benefit.

Thermal & Moisture Performance

Boasting R-values from 3.6 (batts) to 4.3 (blown-in) per inch, Havelock holds its own—and often outperforms other insulations thanks to sheep wool’s ability to manage moisture while retaining loft.

One of wool's most exceptional features is its ability to regulate humidity. Wool fibers can absorb up to 40% of their own weight in water without feeling damp. In humid conditions, it pulls moisture from the air, and when the air is dry, it releases it back—naturally balancing indoor humidity levels. This can help reduce HVAC strain and prevent mold and mildew, which thrive in consistently moist environments.

Clean Indoor Air

Wool doesn’t just manage temperature and moisture—it actively improves your indoor air quality. Wool binds and neutralizes harmful VOCs (volatile organic compounds) such as formaldehyde, nitrogen dioxide, and sulfur dioxide. These chemicals, often found in conventional building materials, contribute to indoor air pollution, respiratory irritation, and long-term health risks.

Havelock Wool acts like a natural air filter, capturing toxins and locking them away for good. Unlike synthetic filters that need replacing, wool insulation keeps working silently behind your walls for decades.

Fire & Sound Performance

Naturally fire-resistant (self-extinguishing) and rated Class A for flame spread, Havelock delivers safety without chemical fire retardants. That means you’re not trading fire safety for health hazards—a common compromise in many conventional insulations.

Havelock Sheep Wool Insulation also absorbs sound across a wide range of frequencies, making it ideal for applications where noise control is important. Whether you're creating a music studio, quiet office, or simply want a more peaceful home, wool delivers excellent acoustic insulation. It dampens both airborne noise (like voices or music) and impact noise (like footsteps or vibrations), creating a more serene living or working environment.

Durability & Installation Ease

Wool’s structure remains resilient over time—no settling, no sagging. It bounces back from compression and holds its shape, helping it maintain consistent performance year after year. This resilience means fewer callbacks for contractors and a lasting investment for homeowners.

Installation is another area where Havelock shines. Unlike fiberglass, which requires protective clothing and masks, wool is safe to touch and doesn’t irritate the skin. Batts are easy to cut with a simple utility knife and can be molded to fit irregular cavities, curves, or obstructions.

Where should Havelock Wool Insulation be used?

Homes & Attics

Havelock’s batts and loose-fill products are perfect for insulating walls, attics, and crawl spaces in homes. They improve thermal performance and reduce noise, making them a smart upgrade during renovations or new construction. Builders who specialize in green homes often specify wool because it aligns with LEED and Passive House goals.

Wool also supports a vapor-open building envelope. This approach, often used in modern green construction, allows moisture to move naturally through the building materials rather than trapping it. Wool’s breathability makes it a go-to for builders looking to create “healthy wall” assemblies that stay dry and mold-free.

Vans & Tiny Homes

Vanlife and tiny living have taken off in recent years, and wool has become a top insulation choice for mobile dwellers. In vehicles where temperature swings and humidity are constant concerns, Havelock Wool offers excellent performance.

It conforms to oddly shaped cavities, absorbs road noise, and resists mold growth even in damp coastal or alpine environments. Van builders love it because it’s easy to install, doesn’t require special tools, and makes for a quieter, more comfortable ride.

Commercial & Acoustic Panels

For commercial buildings, wool adds value in office walls, boardrooms, and educational facilities where comfort and quiet are prized. It helps businesses reduce energy costs and promote healthier work environments.

It’s also increasingly used in decorative acoustic panels—offering both functional and aesthetic value. Because wool can be dyed and shaped easily, it's a versatile solution for architects and designers aiming for acoustic performance with visual appeal.

Eco Credentials & Certifications

• Declare & HPD Labels: Transparency is key in modern construction. Havelock provides Health Product Declarations and is listed in the Declare program, a “nutrition label” for building products.
  
• Fire Safety Testing: ASTM E84 (flame/smoke spread) Class A rated.
  
• Thermal & Acoustics: Third-party tested under ASTM C518 (thermal conductivity) and ASTM C423 (sound absorption).
  
• Longevity Guarantee: Havelock Wool offers a 50-year limited warranty—outlasting most homes.
  
• Embodied Energy: Compared to fiberglass, wool has an ~85% lower manufacturing energy footprint.

Products Available from Eco Building Products

Havelock Wool PRO Batt R‑22

• R‑22 (5.5″) friction-fit batts, ideal for walls, ceilings, and floors.

Havelock Wool Loose‑Fill (Blown‑In)

• Blow-in option with R‑15 to R‑60 coverage, perfect for attic retrofits and cathedral ceilings.

Havelock Wool Van Insulation

• 2″ thick R‑7 batts—an easy-to-install solution for vans, trailers, and tiny homes.

Installation Basics

Batt Insulation

1. Measure cavities and cut batts accordingly.
   
2. Friction fit snugly—no stapling or adhesives needed.
   
3. Trim carefully around electrical boxes and pipes.
   
4. Avoid compression—maintain loft for full R-value.
   
5. No vapor barrier needed in most climate zones.

Blown-In

1. Use blowing machine to achieve uniform coverage.
   
2. Target density of 1.1 lb/ft³.
   
3. Ideal for hard-to-reach spaces: vaulted ceilings, existing attics.
   
4. Can be dense-packed into wall cavities.

Van Builds

1. Pre-cut batts to cavity sizes.
   
2. Install in layers, tucking around wires or structural frames.
   
3. Use minimal adhesive or friction-fit alone.
   
4. Optional mesh can hold batts in place if needed.

Cost, ROI and Sustainability

Upfront, Havelock Wool costs more than fiberglass or foam. But the benefits offset the price:

• Energy Savings: Lower bills due to high thermal performance.
  
• No Maintenance: Doesn’t degrade, no need to replace.
  
• Health Savings: Fewer toxins, better air quality.
  
• Incentives: May qualify for green building tax credits or utility rebates.

Over a 10-year period, wool’s cost-per-R-value and durability make it one of the best long-term investments in the insulation market.

Environmentally, the benefits are even greater:

• Renewable source
  
• Biodegradable after decades of use
  
• Lower emissions during production
  
• Supports regenerative agriculture

Bottom Line

Havelock Wool is more than insulation—it’s a conscious choice for builders and homeowners who value health, sustainability, and long-term performance. From tiny homes to luxury builds, wool offers unmatched versatility, comfort, and peace of mind.

Ready to make the switch? Explore our full range of Havelock Wool products and get started on a cleaner, greener future today.