Duct Liner Insulation R Value

Toughgard r rotary duct liner offers outstanding thermal and acoustical performance in duct liner applications.

Duct liner insulation r value.

5 5 1 5 astm c1071 type i. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. Composed of rotary type glass fibers it features a durable air stream surface with an antimicrobial agent and a sustainable base mat. This product meets the needs of one segment of the market that prefers a textile fiber duct liner.

For most applications a rating of r 6 or better will provide the best efficiency and long term cost effectiveness. Fungi resistance astm c1338 meets requirements fungi resistance astm g21 meets requirements. Jm offers this product as part of our commitment to providing a complete range of product solutions. It provides acoustical and thermal performance for lined metal ducts.

Typically r 4 to r 8 is appropriate for the ducts within the insulated part of your home. For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3. Value operating temperature astm c411 250 f 121 c maximum air velocity ul 181 erosion test astm c1071 6 000 fpm 30 5 m sec water vapor sorption by weight astm c1104 3 at 120 f 49 c 95 r h.