havelockwool logo
havelockwool logo

All articles

Product

What is the R Value of Havelock Wool home insulation?

We have multiple products with different R Values. Our Batt Insulation comes in R7, R14 and R22.  Our blown-in insulation can achieve different R Values depending on how much is placed into your wall, ceiling or floor cavity. See our Specification Do

Do I need to be concerned about bugs (moths, etc.)?

No. We apply a minor amount of boric acid (less than 1% by weight), which is all-natural and non-toxic, as an insect repellent. In addition, it is often the lanolin that attracts pests. Our wool comes from New Zealand where the most advanced scouring

The wool has a odor to it. How long does that last?

When opened, the wool may have a pleasant barnyard smell. It will dissipate over a day or two. You can expedite this by opening and letting your bags of wool breathe for 24 hours before installing.

Are your products building code compliant?

Yes. Havelock products conform to Class A of the building code. Test results are available, and no exception is needed to use Havelock Wool.

Do you have a warranty?

Yes. Provided the wool is installed correctly, we have a 50-year warranty.

Do you sell R38?

Yes. In two layers of R20 or blown-in @ 9".

What is the poly you use in your product?

We use <5% recycled, bio-degradable poly.  Details of the fiber can be found HERE and HERE.

Why do you use poly?

To bond our batts.

Do you sell wool without poly?

Only our blown-in and R7 do not have poly.

Who else uses poly and what %'s?

Everyone who makes an alternative insulation batt, e.g., cotton, hemp, and cellulose.

What is boric acid?

An insect repellant. We apply a minor amount of boric acid (less than 1% by weight), which is all-natural and non-toxic, as an insect repellent. In addition, it is often the lanolin that attracts pests. Our wool comes from New Zealand where the most

Why is boric acid used?

Because it's an insect repellant

Can I buy without boric or poly?

No.

Is blown-in wool insulation dusty?

Compared to other blown-in insulation products, such as cellulose, Havelock insulation generates minimal dust. While there may be some dust from the wool and the blower, this is typically not a major concern for new constructions or larger remodeling

Do you have products for MCS?

Yes. We do quite a bit in the MCS space.

Your sample says PRO batt, can I have loosefill to?

Yes

Is Rockwool the same as Havelock Wool?

No. There is no wool in rockwool. They use basalt rock, slag, formaldehyde and high heat to make their fibers. Havelock Wool products are made from high-quality natural wool.

Can I have a sample?

Yes. You can order our sample box here.

Do you have duct insulation?

Coming soon!

Does your product mold?

Mold and Mildew are not part of a Healthy Home. A damp, moldy environment is harmful to your health, so it’s essential that insulation resists mold and mildew. Havelock Wool, made of protein-based keratin, is naturally mold resistant. Its fibers have

Will your product work for sound panels?

Yes

Do you have STC testing?

No, we use a noise reduction coefficient.

Do you have sound testing on 2"?

No

Do you have sound products?

Coming soon

Send me your testing data?

Sure

Is it flammable?

Wool does not support a flame below 1100F.

Is it heavy?

No

Difference between R13 and R20?

3.5 and 5.5", respectively.

Do rodents and mice like your product?

No more than any other insulation

Can your batts be compressed? by how much?

Yes. Minimal compression is suggested to maintain the r-value.

What is density of batt?

1.5 lbs per cubic foot.

What is the density of blown-in?

1.12 lbs per cubic foot.

What is the R value?

R13 and R20 Batts are R3.6 per inch and can be stacked to increase R value. Loose fill blown-in is R4.3 per inch or R24 in a 2x6 and R13 in a 2x4.

What is the insulation mesh made out of?

Synthetic fiber.

Does insulaiton mesh come in different sizes?

Yes, but not the one we offer.

What is condensation?

Condensation is the conversion of a vapor or a gas to a liquid. It most often refers to the cycle of water. Think of it this way: you just bought a loaf of bread at a bakery and are sitting at a table having a coffee in the sun. The bread and the (pl