Havelock Loose Fill Wool Insulation
Loose fill insulation is increasingly preferred amongst industry leaders in the built environment. Havelock Wool loose fill insulation is widely used in residential and commercial construction applications that require superior thermal, moisture and acoustic insulation.
We produce our loose fill following a proprietary and repeatable manufacturing process. This yields knops, or balls, that enhance our wool’s ability to trap increasing amounts of air. This process accelerates wool’s inherent characteristics and allows us to exceed the R-values of all other insulation mediums except the most toxic: spray foam.
What is Loose Fill Insulation?
Loose fill or “blown-in” insulation is a more recent entrant into the insulation market. Installation begins with a membrane placed over open stud bays, or a hole poked in an existing wall, and insulation is blown behind.
Traditional batt insulation “slumps” overtime. This creates air gaps and a drop in insulation R-value. Loose fill insulation prevents this by filling your wall cavity more completely.
Loose Fill Insulation Benefits
Our product is all-natural, renewable and sustainable in it’s production, while being compostable at the end of an extended useful life. Wool is inherently self-extinguishing and manages moisture against 65% relative humidity. Our loose fill out performs most other types of insulation with an R-value of 4.3 per inch.
Unparalleled Health & Safety
Loose fill insulation can be installed by hand though pneumatic blowing is recommended. There are various machines fit for installing wool.
This video covers all aspects of loose fill installation: tools and materials needed, job site preparation and technique.
Click to the left for a quick view of DIY install methodology.
Composition & Materials
Our loose fill insulation is comprised of 100% wool and no synthetic mix. We make small balls which are hugely effective at trapping air, while avoiding slump once installed. Some argue that entangling a straight fiber will actually allow it to expand over time. Irrespectively, the extra trapping of air allows for higher rvalues to be achieved.
Compliance: California Bureau of Thermal Insulation: License #T1500 / Registry #CA-T500
Smoke Developed (Class A)
Flame Spread (Class A)
Sound Absorption Coefficient
Absorption Coefficients *
*The Noise Reduction Coefficient (commonly abbreviated NRC) is a scalar representation of the amount of sound energy absorbed upon striking a particular surface. An NRC of 0 indicates perfect reflection; an NRC of 1 indicates perfect absorption.
The following thermal performance values are achieved when insulation is installed at the thickness, weights and coverage specified.
|R Value||Bag Requirements||Max Coverage||Minimum Weight||Minimum Installed Thickness|
|To obtain thermal resistance of:||# of bags per 1000 sq ft||Contents of bag (25lbs) shall not cover more than: (sq ft.)||Weight per sq ft shall not be less than lbs / sqft:||Minimum thickness|