Fiberglass Insulation

Improve energy efficiency with premium fiberglass insulation from trusted brands like Owens Corning and Johns Manville. Perfect for New York’s homes and businesses, our insulation provides superior thermal and sound control. Enjoy fast delivery and high-quality materials to keep your spaces comfortable year-round.

62 products

  • A package of Rockwool RXCB351525 R15 ComfortBatt stone wool insulation (3-1/2 in. x 15-1/4 in. x 47 in), features fire resistance and thermal insulation, with red and blue packaging. Specs appear in English, French, and Spanish.
    A package of Rockwool RXCB351525 R15 ComfortBatt stone wool insulation (3-1/2 in. x 15-1/4 in. x 47 in), features fire resistance and thermal insulation, with red and blue packaging. Specs appear in English, French, and Spanish.
    special price

    ROCKWOOL RXCB351525 R15 ComfortBatt 3-1/2 in. x 15-1/4 in. x 47 in

    With excellent thermal performance and a high R-value per inch, R15 COMFORTBATT 3.5"X15.25"X47" is ideal for wood framed construction. Its stone wool material is non-combustible and...

    $84.28 USD
    $84.28 USD
    special price
  • A KNAUF R-13 EcoRoll Kraft Faced Fiberglass Insulation Roll (3.5 in. x 15 in. x 62.66 ft, covering 78.33 sq. ft.) features a blue and white design with installation icons and displays R-13, Kraft, and coverage info at 0.65¢ per sq. ft.
    A KNAUF R-13 EcoRoll Kraft Faced Fiberglass Insulation Roll (3.5 in. x 15 in. x 62.66 ft, covering 78.33 sq. ft.) features a blue and white design with installation icons and displays R-13, Kraft, and coverage info at 0.65¢ per sq. ft.

    KNAUF R-13 EcoRoll Kraft Faced Fiberglass Insulation Roll 3.5 in. x 15 in. x 62.66 ft (78.33sf) (0.65¢ / sq. ft.)

    This KNAUF R13 EcoRoll Kraft Faced Fiberglass Insulation Roll provides exceptional thermal and sound insulation for homes and buildings. Made with eco-friendly materials and a Kraft...

    $50.75 USD
    $50.75 USD
  • The Rockwool RXCB3523 R15 ComfortBatt, a 3-1/2 in. x 23 in. x 47 in. stone wool insulation batt (59.7 sq. ft.), comes in red and white packaging with icons for thermal, fire, and water resistance.
    The Rockwool RXCB3523 R15 ComfortBatt, a 3-1/2 in. x 23 in. x 47 in. stone wool insulation batt (59.7 sq. ft.), comes in red and white packaging with icons for thermal, fire, and water resistance.
    special price

    ROCKWOOL RXCB3523 R15 ComfortBatt 3-1/2 in. x 23 in. x 47 in. Fire Resistant Stone Wool Insulation Batt (59.7 sq. ff.)

    With excellent thermal performance and a high R-value per inch, R15 COMFORTBATT 3.5"X23"X47" is ideal for wood framed construction. Its stone wool material is non-combustible and...

    $90.34 USD
    $90.34 USD
    special price
  • A red rectangular package of ROCKWOOL RXCB324 COMFORTBOARD 80 (3 in. x 24 in. x 48 in., 24 sq ft) features white text, logos, and product details. This Rockwool thermal insulation is durable and vapor permeable.A cross-section illustration shows building layers, with a red label indicating the vapor-permeable Rockwool RXCB324 COMFORTBOARD 80—3 in. x 24 in. x 48 in.—continuous insulation beneath a blue sheet and gray solid surface.
    A red rectangular package of ROCKWOOL RXCB324 COMFORTBOARD 80 (3 in. x 24 in. x 48 in., 24 sq ft) features white text, logos, and product details. This Rockwool thermal insulation is durable and vapor permeable.A cross-section illustration shows building layers, with a red label indicating the vapor-permeable Rockwool RXCB324 COMFORTBOARD 80—3 in. x 24 in. x 48 in.—continuous insulation beneath a blue sheet and gray solid surface.

    ROCKWOOL RXCB11224 COMFORTBOARD 80 1-1/2 In. X 24 In. X 48 In. 48 SQFT

    ROCKWOOL Comfortboard® 80 thermal insulated sheathing is a rigid stone wool insulation board designed for use as an exterior continuous insulation. Comfortboard® 80 does not produce...

    $106.11 USD
    $106.11 USD
  • A red rectangular package of ROCKWOOL RXCB324 COMFORTBOARD 80 (3 in. x 24 in. x 48 in., 24 sq ft) features white text, logos, and product details. This Rockwool thermal insulation is durable and vapor permeable.A cross-section illustration shows building layers, with a red label indicating the vapor-permeable Rockwool RXCB324 COMFORTBOARD 80—3 in. x 24 in. x 48 in.—continuous insulation beneath a blue sheet and gray solid surface.
    A red rectangular package of ROCKWOOL RXCB324 COMFORTBOARD 80 (3 in. x 24 in. x 48 in., 24 sq ft) features white text, logos, and product details. This Rockwool thermal insulation is durable and vapor permeable.A cross-section illustration shows building layers, with a red label indicating the vapor-permeable Rockwool RXCB324 COMFORTBOARD 80—3 in. x 24 in. x 48 in.—continuous insulation beneath a blue sheet and gray solid surface.
    special price 18% off

    ROCKWOOL RXCB224 COMFORTBOARD 80 2 In. X 24 In. X 48 In. 40 SQFT

    ROCKWOOL Comfortboard® 80 thermal insulated sheathing is a rigid stone wool insulation board designed for use as an exterior continuous insulation. Comfortboard® 80 does not produce...

    $116.28 USD
    $116.28 USD $143.00 USD
    special price
  • A red rectangular package of ROCKWOOL RXCB324 COMFORTBOARD 80 (3 in. x 24 in. x 48 in., 24 sq ft) features white text, logos, and product details. This Rockwool thermal insulation is durable and vapor permeable.A cross-section illustration shows building layers, with a red label indicating the vapor-permeable Rockwool RXCB324 COMFORTBOARD 80—3 in. x 24 in. x 48 in.—continuous insulation beneath a blue sheet and gray solid surface.
    A red rectangular package of ROCKWOOL RXCB324 COMFORTBOARD 80 (3 in. x 24 in. x 48 in., 24 sq ft) features white text, logos, and product details. This Rockwool thermal insulation is durable and vapor permeable.A cross-section illustration shows building layers, with a red label indicating the vapor-permeable Rockwool RXCB324 COMFORTBOARD 80—3 in. x 24 in. x 48 in.—continuous insulation beneath a blue sheet and gray solid surface.
    special price

    ROCKWOOL RXCB324 COMFORTBOARD 80 3 In. X 24 In. X 48 In. 24 SQFT

    ROCKWOOL Comfortboard® 80 thermal insulated sheathing is a rigid stone wool insulation board designed for use as an exterior continuous insulation. Comfortboard® 80 does not produce...

    $107.50 USD
    $107.50 USD
    special price
  • The 32 ft. roll of Go Build R-13 Kraft Faced Fiberglass Insulation for 2x4 wood studs (40 sq. ft.) offers soundproofing benefits and easy handling, featuring playful packaging that underscores its sound absorption qualities.
    The 32 ft. roll of Go Build R-13 Kraft Faced Fiberglass Insulation for 2x4 wood studs (40 sq. ft.) offers soundproofing benefits and easy handling, featuring playful packaging that underscores its sound absorption qualities.

    R-13 Kraft Faced Fiberglass Insulation 16 O.C. for 2x4 Wood Studs x 32 ft. Roll (40 sq. ft.)

    Order this Owens Corning R-13 Kraft Faced Fiberglass Insulation 16 O.C. for 2×4 Wood Studs x 32 ft. for delivery. Advanced fiber technology recovers without shaking...

    $30.89 USD
    $30.89 USD
  • A package of KNAUF R-19 EcoBatt Kraft Faced Fiberglass Insulation Batt, measuring 15 x 94 x 6-1/4, is shown with product code 6091500. Covering 97.92 sq ft, it promotes sustainability and includes a bundle of 10 batts.
    A package of KNAUF R-19 EcoBatt Kraft Faced Fiberglass Insulation Batt, measuring 15 x 94 x 6-1/4, is shown with product code 6091500. Covering 97.92 sq ft, it promotes sustainability and includes a bundle of 10 batts.

    KNAUF R-19 EcoBatt Kraft Faced Fiberglass Insulation Batt 15 in. x 94 in. x 6-1/4 in.($1.48/sq.ft)

    Elevate your insulation game with Knauf's R-19 EcoBatt Kraft Faced Fiberglass Insulation Batt, featuring revolutionary ECOSE Technology and a commitment to sustainability.Covers 97.92 sq. ft. Our...

    $75.53 USD
    $75.53 USD
  • A large roll of Owens Corning R19 15 in. x 39.2 ft. Kraft Faced Fiberglass Roll Insulation (49 sq. ft.), designed for 2x6 walls/floors, features the Pink Panther mascot and blue/pink product details on the packaging.
    A large roll of Owens Corning R19 15 in. x 39.2 ft. Kraft Faced Fiberglass Roll Insulation (49 sq. ft.), designed for 2x6 walls/floors, features the Pink Panther mascot and blue/pink product details on the packaging.
    16% off

    Insulation

    OWENS CORNING R19 15 in. x 39.2 ft. Kraft faced Fiberglass Roll Insulation 49SQ FT

    Owens Corning PINK Next Gen Fiberglas insulation installs faster because it’s made like no other fiberglass insulation. PINK Next Gen fiberglass insulation rolls recover instantly, cut...

    $36.39 USD
    $36.39 USD $43.67 USD
  • A package of Go Build R-13 Kraft Faced Fiberglass Insulation, suitable for 2x4 wood studs and measuring 93 inches, offers enhanced soundproofing and thermal efficiency. The packaging highlights product specifications, including dimensions and a coverage area of 126.56 square feet.
    A package of Go Build R-13 Kraft Faced Fiberglass Insulation, suitable for 2x4 wood studs and measuring 93 inches, offers enhanced soundproofing and thermal efficiency. The packaging highlights product specifications, including dimensions and a coverage area of 126.56 square feet.

    R-13 Kraft Faced Fiberglass Insulation 16 O.C. for 2x4 Wood Studs x 93 in. (126.56 sq. ft.)

    Have this Owens Corning R-13 Kraft Faced Fiberglass Insulation 16 O.C. for 2×4 Wood Studs x 93 in. delivered onsite. Advanced fiber technology recovers without shaking...

    $78.81 USD
    $78.81 USD
  • Knauf R19 KFR 6.25" X 15" X 39.16' 49sf ($1.02 / sq.ft) - Go Build, The Fastest Way To Build
    Knauf R19 KFR 6.25" X 15" X 39.16' 49sf ($1.02 / sq.ft) - Go Build, The Fastest Way To Build
    20% off

    Knauf R19 KFR 6.25" X 15" X 39.16' 49sf ($1.02 / sq.ft)

    Designed and built with the highest quality materials, Knauf R19 KFR is the perfect choice for your insulation needs. With its generous size of 6.25" X...

    $56.77 USD
    $56.77 USD $71.00 USD
  • A package of Rockwool RXCB351625 COMFORTBATT R15 stone wool insulation (3.5 in. x 16-1/4 in. x 48 in., 65 sqft) is shown with two beige batts in front of its red, white, and blue packaging.
    A package of Rockwool RXCB351625 COMFORTBATT R15 stone wool insulation (3.5 in. x 16-1/4 in. x 48 in., 65 sqft) is shown with two beige batts in front of its red, white, and blue packaging.
    special price

    ROCKWOOL RXCB351625 COMFORTBATT R15 3.5 in. X 16-1/4 in. X 48 in. (65 SQFT)

    ROCKWOOL Comfortbatt® is a stone wool batt insulation designed for thermal performance in exterior wall cavities, exposed floors, basements/crawlspaces and attic applications in both wood and...

    $86.12 USD
    $86.12 USD
    special price