R-15 Rockwool 3-1/2 in. x 15-1/4 in. x 47 in. (59.7 sq. ft.) ComfortBatt Stone Wool Insulation Batt
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PRODUCT DESCRIPTION
About This Product
ROCKWOOL ComfortBatt R-15 is an unfaced stone wool thermal insulation batt measuring 3-1/2 in. thick by 15-1/4 in. wide by 47 in. long, sized to fill a 2x4 cavity framed on 16 in. centers. One compression-packed bag holds 12 pieces and covers 59.7 sq. ft. The R-15 Rockwool 3-1/2 in. x 15-1/4 in. x 47 in. (59.7 sq. ft.) ComfortBatt Stone Wool Insulation Batt is slightly oversized so it friction-fits into the cavity and stays put without staples or facing, which keeps a consistent R-value across the wall with no gaps or slumping. Stone wool is non-combustible, water repellent and resistant to mold and mildew, and it adds sound reduction along with its thermal performance. It is used in exterior walls, ceilings, attics, floors, crawlspaces and basements over wood framing, and cuts cleanly with a serrated insulation knife.
Key Features
- R-15 stone wool batt, 3-1/2 in. x 15-1/4 in. x 47 in. for 2x4 wall cavities
- Compression pack — one bag includes 12 pieces and covers 59.7 sq. ft.
- Easy to install with a friction fit and a consistent R-value, no staples or facing needed
- Unfaced batt suits walls, ceilings, attics, floors, crawlspaces and basements
- Sound reduction and fire resistance designed for exterior walls
- Stone wool is mold and water resistant and does not slump in the cavity
- Cuts cleanly with a serrated insulation knife to fit around framing and services
- Compatible with wood framed construction
- Sold per bag of 12 pieces
PRODUCT SPECIFICATIONS
Insulation Location: 2x4 Wall
Insulation Location: Ceiling Insulation
Product Thickness (in.): 3.5 in
Insulation Location: Attic
Insulation Location: Floor
Insulation Location: Crawlspace
Insulation R-Value: R15
Insulation Location: Basement
Bag Size: 4 ft. x 16 in. x 24 in.
Batt/Roll Size: 4 ft. x 3.5 in. x 15.25 in.
Compatible Install Surface: Wood
Faced or Unfaced: Unfaced
Insulation Features: Friction Fit
Insulation Location: 2x4 Wall
Attic
Basement
Ceiling Insulation
Crawlspace
Floor
Insulation R-Value: R15
Insulation Type: Batt
Number of Pieces: 12
Pack Size: 12
Product Weight (lb.): 49.7 lb
Returnable: 90-Day
Roll or Batt: Batt
Warranty Information: No
Cover Area Per Bag (sq. ft.): 59.7 sq ft
Coverage Area (sq. ft.): 59.7 sq ft
Product Length (ft.): 4 ft
Product Thickness (in.): 3.5 in
Product Width (in.): 15.25 in
Nominal weight: 300 lb
Disclaimer: Nominal weight is adjusted based on product volume and shipping rates, and may differ from the actual weight.
HOW WE DELIVER
At Supply Ontime, we make getting [[productName]]
simple, efficient, and tailored to your needs. Whether it’s a small renovation, restoration, or a large-scale construction project, we’ve got your back with same-day delivery across the Greater Los Angeles Area.
1.Place Your Order Online
Choose the amount of [[productName]] you need along with any other building materials required for your project.
2.Choose Your Delivery Method
We offer flexible delivery options to suit every project:
- Truck Bed Delivery: You unload the materials with your team.
- Curbside Delivery: We’ll unload the materials close to the truck.
- White Glove Delivery: We’ll bring your order exactly where you need it.
Delivery services are priced based on the order weight. For more details, check our Delivery Page for rates and conditions.
3.Build with Confidence!
We will deliver your entire order today within four hours, or schedule your delivery within a 2-hour window.
Buying building materials has never been easier. Just choose what you need, when you need it, and we’ll take care of the rest. With Supply Ontime, we work so you can focus on what really matters: nailing your project. The delivery is on us.
RETURN POLICY
Free and easy returns. No restocking fee.
- 90 days to return new, unused and unopened items in their original packaging.
- Concrete forms: 30 days, unused and in the condition you received them.
- No restocking fee on any category.
- Free pickup when you give us a 4-day window. A fixed 2-hour window, or having our team load the material, is charged at the standard delivery or service rate.
- Damaged, defective or wrong item? It costs you nothing. Email photos to info@supply-ontime.com.
Not returnable: opened or used products, gift cards and store credits, promotional and discounted items.
To start a return: open the order in your account and create a return, or email info@supply-ontime.com. Approved refunds go back to your original payment method within 10 business days.
Warnings
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov. - www.p65warnings.ca.gov
