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Product selection from JOHNS MANVILLE

Johns Manville R40 Unfaced Fibreglass Batt Insulation 48-Sq. Ft. Walls and Attics

Article #54835239 Model #90007265 Format 24x48x11.25"
This item is not currently available for immediate purchase, but can be ordered by visiting the selected store.
The earliest delivery date displayed is only an estimate. The actual delivery date may change based on availability of products, or due to other circumstances beyond our control. Appliance delivery date can be selected in the checkout. If there is no option to schedule your appliance delivery, our team will contact you to schedule a delivery within 24 hours. Learn More.
All express deliveries are delivered by our 3rd party partner ToolBX Inc. Only available for select in-store items in sufficient stock at the participating selected store. Delivery address must be within delivery zone of the selected participating store. Weight limit of 1,475 Kg (3,250 lbs) per order. Service must be requested before 2 p.m. on weekdays and before noon on Saturdays (local time) to get your order on the same day. After these times you'll get your order on the next available delivery day. Not available on national/provincial holidays. Service may not be available due notably high in-store traffic, bad weather conditions or any other situation affecting the availability of the service. See all details.
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Our expert center will contact you to schedule a delivery within 24 hours. The delay for delivery is an estimate and may vary according to the availability of products, or due to other circumstances beyond our control. Delivery prices only include curbside delivery, except for appliances. Delivery service is only available within a 50 km radius from the selected store (75 km for RONA+ stores). Additional charges may apply for installation. We will not leave deliveries at an unattended site – note that additional delivery charges may apply for subsequent delivery attempts. See all details.
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Description

Fibreglass insulation, 11.25 x 24 x 48 inches. Covers up to 48 square feet. Thermal resistance of R40. Insulating wool is a flexible material made of fibreglass. It is used for the insulation of walls and attics and improves energy and acoustic efficiency. This product is made in Canada with more than 45% recycled materials. Plus, it's easy to install and fire and mildew resistant.
  • Lightweight, thermal and acoustical fiberglass insulation
  • Designed for steel framing
  • Best for use in ceilings and attics
  • 50% Recycled content - JM fiberglass insulation carries the UL ecology certification for reduced environmental impact
ECOLOGO 

Ecological Attributes

This insulating product is certified ECOLOGO®. It emits fewer VOCs and formaldehyde for better air quality, reduces heat loss for energy savings, and is made from at least 45% of recycled materials to reduce the use of raw materials.

Product specifications

Bag Dimensions (L x W x D)
48X14X24
Coverage Area(ft2)
48
Coverage Area(m2)
4.4592
ENERGY STAR Certified
Yes
Faced/Unfaced
Unfaced
Fits 2 x 4 Walls
No
Fits 2 x 6 Walls
No
For Use in Attics
Yes
For Use in Basements
No
For Use in Vents
No
For Use in Walls
No
For Use in Windows
No
Formaldehyde Free
Yes
Framing Type
Steel studs
For Use in Ceilings
Yes
For Use in Crawlspaces
No
For Use in Doors
No
For Use in Duct
No
For Use in Electrical
No
For Use in Floors
No
For Use in Garage Doors
No
For Use in Masonry
No
For Use in Plumbing
No
Insulation Type
Fiberglass
Length(cm)
121.92
Length(in)
48
Length(mm)
1219.2
Maximum R-Value
40
Package Count
6
Package Type
Individual pack
Package Weight(kg)
16.247952
Package Weight(lbs.)
35.82
Pallet Quantity
N/A
R-Value per Inch
3.5
Series Name
N/A
Sound Barrier
Yes
Thickness(cm)
28.702
Thickness(in)
11.3
Thickness(mm)
287.02
Total Package Quantity
6
Vapor Retardant
No
Warranty
None
Width(cm)
60.96
Width(in)
24
Width(mm)
609.6
Multi-Pack Quantity
N/A
Stud Spacing(cm)
60.96
Stud Spacing(in)
24
Stud Spacing(mm)
609.6

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With an R value of 3.5/inch, how do you get to 40R value on 2x6 framing? 3.5R x 5.5" = 19.25R.

Asked by: rwamoore
The thickness is listed as 287mm (about 11"). That gives you 3.5R/inchx11"=about 40R.
Answered by: ILYK9z
Date published: 2022-01-01

I can't sign in. I've been sent links but I always get an error message indicating that my password or email address is incorrect.

Asked by: kelly123456
Contact customet service ....! Lol
Answered by: GarageGod
Date published: 2022-01-01

Is this product good for the ceiling of an attic. I am finishing the attic so is this the right product to install.

Asked by: Murphalla
This product causes considerable itchiness on the skin and the eyes. We needed gloves, goggles, and face mask to install this white insulation. Much worse than the pink insulation from Owens-Corning.
Answered by: DaveBAC
Date published: 2022-01-24

How many sq feet per package

Asked by: blai
There are 48 square feet per bag. 6 pieces 24" x 48" 
Answered by: Finner
Date published: 2022-01-24

How many sq ft per bundle coverage

Asked by: Robn
in the description is states 48 sqft
Answered by: gros singe
Date published: 2018-12-05

What is the STC rating for this product?

Asked by: BashirAHMed
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Johns Manville R40 Unfaced Fibreglass Batt Insulation 48-Sq. Ft. Walls and Attics is rated 4.6 out of 5 by 7.
Rated 2 out of 5 by from Insulation good , lowes not so much Insulation is good , lowes has it miss printed , there are 6 peices in the bag not 10 ...
Date published: 2021-09-24
Rated 5 out of 5 by from Great stuff Great stuff! Easy to work with. The website says the package comes with 10 pieces, but it's actually only 6 pieces. This threw my planning/budget off.
Date published: 2021-07-24
Rated 5 out of 5 by from I used this to insulate my cathedral ceiling and it worked great. I found that it was a very clean insulation to install. The fibres when cutting were very minimal which was a plus.
Date published: 2019-01-14
Rated 5 out of 5 by from SUPERB PRODUCT! Easy to install and handle! Very effective and reasonably priced.
Date published: 2018-12-20
Rated 5 out of 5 by from It's insulation, what can I say? Used it to put on top of existing insualtion in my attic. No surprise it works. I ordered it online and came in to pick it up at Lowes. It was quick and efficient.
Date published: 2018-07-03
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