Skip Over Navigation

Insulation

Shop OnlineShop Online

INSULATION

Choosing the right insulation, membranes and barriers are important for keeping weather, sound and moisture out and maintaining a dry, quiet and comfortable indoor environment. Our staff can help you compare R-value grades and features to select the right insulation for the room. 

Whether you’re renovating a single room, or specifying a large commercial project, Knowles Building Centre carries trusted, high-quality brands you can depend on. We deliver where and when you need it! Search and shop our online catalog or request an estimate of your order.

Stock Insulation

Special Order Insulation: If you don’t see it, ask for it – we can get it!

  • FIBREGLASS
  • INSULATION JM R1215 97.92 SF
    sku R1215JM
  • INSULATION JM R1223 150.13 SF
    sku R1223JM
  • INSULATION JM R2015 78.32 SF
    sku R2015JM
  • INSULATION JM R2023 120.11 SF
    sku R2023JM
  • INSULATION JM R24X15 38.52 SF
    sku R2415JM
  • INSULATION JM R2816 42.66 SF
    sku R2816JM
  • INSULATION R2824 X 8 64SF JM
    sku R2824JM
  • MISC
  • INSULATION SM 1"X 24"X96"
    sku 1SM
  • Hi-40 STYROFOAM 2"X2'X 8' B.E.
    sku HI-40
  • RIGID
  • STYROFOAM SM 1-1/2"X 2'X8' R7.5
    sku 112SM
  • STYROFOAM SM 2"X 2'X 8' R10
    sku 2SM
  • INSULATION ISO BOARD 1"X 4'X 8'
    sku RX48
  • INSULATION ISO BOARD 1.5"X4'X8'
    sku 112RX
  • CLADMATE 20 1"X4'X9'
    sku CM20
  • ATTIC HATCH R42 22 X 30
    sku 7109044
  • ROXUL
  • ROCKWOOL SAFE SOUND 59.7SF WOOD
    sku SS15
  • ROCKWOOL SAFE SOUND 64.0SF METAL
    sku SS16
  • COMFORT BATT R22x15.25" 39.8/BAG
    sku R2215R
  • COMFORT BATT R22X23 37.5/BAG
    sku R2223R
  • COMFORT BATT R14 X 15" 59.7/BAG
    sku R1415R
  • HOUSEWRAP
  • HOUSEWRAP 3' X 100'
    sku 4767653
  • HOUSEWRAP 9' X 100' ROLL
    sku TVK
  • HOUSEWRAP HOME SLICKER
    sku HS
  • POLYETHYLENE
  • 1"X4'X8' IKO ENER-AIR R6
    sku 327-20001
  • 1-1/2"X4'X8' IKO ENER-AIR R9
    sku 327-20004
  • 1"X4'X9' IKO ENER-AIR R6
    sku 327-20007
  • POLY VAPOUR BARRIER 6MI 20'X100'
    sku 84091381
  • POLY VAPOUR BARRIER 6MI 100"X60'
    sku 8409047
  • POLY VAPOUR BARRIER 6M 102"X176'
    sku 8409096
  • POLY VAPOUR BARRIER 6MI 10'X150'
    sku8 409112
  • POLY VAPOUR BARRIER 6MI 100"X60'
    sku 8409047
  • POLY VAPOUR BARRIER 6MI 1'X300'
    sku 8409252
  • POLY VAPOUR 6MI ULTRA 102"X118'
    sku 8409062
  • POLY VAPOUR 6MI ULTRA 10'X 100'
    sku 8409088
  • POLY CLEAR 2 MIL 8'4"X 60'
    sku 8408403
  • POLY CLEAR MED 100"X180'
    sku 8408569
  • POLY 120"W X 100'L
    sku 8408635
  • POLY CLEAR HEAVY 100"X60'
    sku 8409310
  • VINYL CLEAR 12G 54"X 75'
    sku 8333551
  • BUBBLE FOIL
  • BUBBLE FOIL 4'X 50'
    sku 6383236
  • BUBBLE FOIL 48" X 10'
    sku 6121065
  • FOIL DOUBLE BUBBLE 96"x 125'
    sku 299
  • FOIL DOUBLE BUBBLE 48" (LF)
    sku 500F
  • SILL GASKET 3-1/2" X 82
    sku 312SG
  • SILL PLATE GASKET 5.5" X 82' WH
    sku 512SG
  • TARPS
  • BLUE TARP 40 X 60
    sku 9347089
  • BROWN TARP 16 X 20
    sku 9572934
  • BLUE TARP 30 X 40
    sku 2689784
  • BLUE TARP 30' X 50''
    sku2526788
  • BLUE TARP 6 X 8 LIGHT DUTY
    sku 2558948
  • BLUE TARP 8 X 10 LIGHT DUTY
    sku 2571602
  • BLUE TARP 10 X 12 LIGHT DUTY
    sku 2617934
  • BLUE TARP 12 X 16 LIGHT DUTY
    sku 2633618
  • BLUE TARP 16 X 20 LIGHT DUTY
    sku 2633642
  • BLUE TARP 20 X 30 LIGHT DUTY
    sku 2684447
  • CLEAR TARP 30'X 50'
    sku 113283
  • CLEAR TARP POLY 40'X 60'
    sku 112644
  • BLUE TARP POLY 24'X 40'
    sku 2440
  • INSULATED TARP B12X20X 5/32"
    sku B12X20

Get your project started with a free estimate on your insulation needs.

Get A Quote


Your trusted building supply and hardware partner - since 1950. That’s 70 years!


Knowles Building Centre
1 Queen Street 
Kapuskasing, ON P5N 1G4

TOLL FREE:
1-866-303-2251

PHONE:
705-335-2251

e2eae601OMMe5jf2vh71@c_OnT1bajeTWe_Kt7U|

© 2012-2021 Knowles Building Centre All Rights Reserved.