Internet #100318635

Model #INS541LD

Store SKU #211904

Low Dust Cellulose Blown-In Insulation 19 lbs.

  • Reduces sound power by 60%¹
  • Lowers heating & cooling costs by 25%²
  • Free 24 hour machine rental with the purchase of 20 bags
  • See More Details

Product Overview

Insulation Calculator
Keep your home comfortable in extreme cold and hot temperatures all year round. Greenfiber blow-in cellulose insulation fills gaps and voids to create an energy saving thermal blanket that can lower heating and cooling costs by 25% and reduce sound power by 60%. Fire resistant treated insulation is made with 85% recycled material that meets a Class 1 Fire Rating to protect your home and give you more time to evacuate.
  • Ideal for use in attics and walls: creates a thermal blanket that fills voids and reduces sound
  • Covers 40 sq. ft. per 19 lb. bag at R-19
  • Provides a 60% reduction in sound power when dense packed in walls¹
  • Reduces heating and cooling costs by 25%²
  • Fire resistant treated insulation meets Class 1 Fire Rating to protect your home and give you more time to escape
  • Made with 85% recycled content
  • No-itch formula doesn't require cutting tools; allowing for easy installation in just 3 steps: 1) assemble machine 2) place machine on flat, dry surface 3) point and blow-in
  • Can be applied over existing insulation or in new construction
  • ENERGY STAR
  • Limited Lifetime Warranty
  • ¹In field testing on identical 2x4 exterior wall types Greenfiber R-13 Stabilized Spray-In Insulation outperforms R-15 unfaced fiberglass batts by 4 NIC rating points. 4 NIC pts 60% reduction in sound power. The weak point in the assembly such as flanking through windows and doors will diminish the value of the reduction in sound power. Reduction in sound power is achieved through retrofitting, dense-packing or spray-applying cellulose in walls (contractor recommended installation). See manufacturer's installation instructions for full details on how to install to meet specifications.
  • ²Savings vary. Find out why in the seller's fact sheet on R-values. Higher R-values mean greater insulating power. Energy analysis of climate zones 1–7 using 2018 IECC refence home comparing R11 attic to DOE recommended attic insulation by climate.
  • Click here to learn more about Eco Options and Energy Efficiency

Info & Guides

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Specifications

Dimensions

Maximum coverage area (sq. ft.)
9.5
Minimum Coverage Area (sq. ft.)
61.8
Product Depth (in.)
13
Product Height (in.)
15
Product Width (in.)
25

Details

Bag Weight (lb.)
19.05
Compatible Install Surface
Existing Insulation,Fiberglass,Plywood,Wood
Coverage Area (sq. ft. per lbs. at R19)
40
Insulation Features
Fire Block Rated,Formaldehyde Free,Soundproofing Insulation,Structural
Insulation Location
2x4 Wall,2x6 Wall,Attic,Ceiling Insulation
Insulation R-Value per Inch
R3.7
Insulation R-Value Range
R13-R60
Insulation Type
Loose Fill
Material
Cellulose

Warranty / Certifications

Warranty Information
Limited Lifetime Warranty

Questions & Answers

337Questions24Answers

I have a bank barn with masonite on the ceiling of the lower level and a double layer of thick oa...

Asked by thomas November 25, 2020
2
Answers

Regarding Greenfiber Low Dust Cellulose Blown-In Insulation 19 lbs. Sorry, but I can't help? Perhaps you should contact a professional. Good luck.

Is it ok to store outside in the elements for a week? Will rain or snow penetrate the package?

Asked by Insulator November 23, 2020
2
Answers

Should be fine as long as bags are not damaged.

Anyone have installation tips for blowing this in? Thanks.

Asked by Insulator November 22, 2020
1
Answer

Dear Insulator: Here are some installation tips for blown cellulose -- an excellent solution to insulate residential attics: (1) Step 1: Seal all air leaks. Before you add more insulation, carefully find and seal all of the air leaks into your attic. Recessed ceiling lights are culprit #1: install Tenmat covers and seal the edges with DAP 230 sealant. See: Tenmat Model # FF130E Home Depot Internet # 204286308 Store SKU # 1000012747 and DAP 230, Home Depot Internet #100035980 Store SKU #284425 Store SO SKU #1000058280 You can also quickly create covers with a piece of drywall; simply tape the edges with foil HVAC tape and seal the bottom edge with 3M fire resistant sealant, DAP 230 or HVAC mastic. Great Stuff foam is good to fill gaps and holes -- but do not use it near anything that gets hot, e.g. recessed lights, a chimney or exhaust vent. For gaps near a hot exhaust vent, fill the space with rock wool, then cover it with fire resistant sealant, e.g. 3M Model CP-25WB+, Home Depot Internet #100166701 Store SKU #163096 For the large gap next to a chimney, cover it with aluminum flashing (available at Home Depot) nailed to the joists, and seal the edges with 3M sealant. (2) Do not block soffit vents that circulate air in a standard vented attic. These vents are located along the soffits at the bottom edge of the roof. They cannot be covered and blocked by your blown-in cellulose. Install a 'channel cover' in each rafter bay to provide a protected opening for air to flow. See: ADO Provent Model # UPV14480, Home Depot Internet #100533902 Store SKU #739684. (3) Recessed ceiling lights: Some recessed ceiling light cans are designed for "direct insulation contact" -- and some are not. If you do not install covers, carefully check your ceiling lights to see if they are rated for direct contact. If not, this would create a fire hazard if they are covered with insulation. If your ceiling lights are not 'direct contact' rated, you will need to build a box around each light as noted above -- to keep insulation away from the light. The quickest, cheapest and best option is to use drywall to create a simple box over each light. Tape the joints with foil HVAC tape. Seal the edges to block air leaks; HVAC mastic or DAP 230 work well. (4) Chimneys: If you have an internal chimney, first make sure the gap around it is air sealed, as noted above. Then build a 'dam' around it with drywall or 1" x 8" wood -- at least 6" from the chimney surface. This dam should be >6" taller than the final level of blown cellulose. Temporarily cover this dam when you install the cellulose, to avoid inadvertently adding cellulose in the gap. (5) Hot exhaust vents: Similarly, make sure the gap around exhaust vents are well-sealed as noted above. Then build a 'dam' around each vent, like the dam around a chimney. (6) If you have forced air HVAC ducts in your attic, you are probably losing significant $$ winter and summer. Before you add insulation, seal all of the ducts connections and seams carefully with mastic. See: Master Flow Model # WBA50, Home Depot Internet #100396973 Store SKU #559722. Then wrap the ducts in multiple layers of duct insulation. See: Master Flow Model # INSWRP60, Home Depot Internet #100152008 Store SKU #363984 Store SO SKU #1000684734. Fasten the wrap and seal all of the seams with foil HVAC tape -- NOT silver fabric "duck" tape. See: Nashua Model # 1207792, Home Depot Internet #100030120 Store SKU #915245 Then bury the ducts in 6+ inches of blown cellulose. (7) Install sticks vertically around your attic, screwed to the joists, with a mark showing the X inch depth -- so it will be easy to see when you have achieved the right level in each area. Two charts are attached below showing the depth needed in each region of the USA. (8) Both people (in the attic and at the blower) should wear a good dust mask -- NOT the kind with a rubber band on the back. See: 3M Model # 6297PA1-A, Home Depot Internet #202078789, Store SKU #861149 (9) Cellulose settles 13% over time, so add 13% more to achieve the final depth and R-value. One caveat: People sometimes think they can also insulate their own walls with blown cellulose. This requires a high pressure blower and experience. The blower used for attics is low pressure and does not require experience. Home Depot can recommend a contractor if you want to insulate your walls. I hope all of this detail is helpful. Mark

I need to figure sq ft?

Asked by Megan November 17, 2020
4
Answers

https://www.greenfiber.com/support/insulation-calculator

can this product be used in the cieling of a steel pole barn? interior of pole barn is all metal...

Asked by unsure October 17, 2020
2
Answers

Anywhere blown insulation can be used, this should work fine

Can I blow insulation into a wall from the attic?

Asked by JJmac October 17, 2020
4
Answers

Sure. Many older homes had open ends/spaces in the attic/crawl space and that make it easier to blow in (or hand feed) this insulation. Newer homes often have 2"x4" 's that block direct access to such space making this task more difficult. Either way such space is fine to back fill with this insulation. PS: As some settling will occur, you may need to "top off" after some time has passed.

how many bags do I need for a 28x28 foot attic? and how much to rent the blower and would it fit ...

Asked by tina October 11, 2020
3
Answers

https://www.greenfiber.com/support/insulation-calculator

How do I calculate the installation of this product (19lbs) blown into an interior wall? My walls...

Asked by goodquestion123 September 2, 2020
2
Answers

there are chart on greenfiber website. https://www.greenfiber.com/uploads/documents/INS773LD-Cel-Pak-Extended-Coverage-Chart.pdf

Do green fiber itch when you use/ install it ?

Asked by SteveA August 22, 2020
2
Answers

Nope, it is paper based. It is dusty but not itchy

can I blow it in my walls?

Asked by ivan August 21, 2020
2
Answers

how do I blow insulation into a wall

Low Dust Cellulose Blown-In Insulation 19 lbs. - page 2

Customer Reviews

  • 690 Customer Reviews
  • 4.3 out of 5 stars overall
87% of customers recommended.
Overall Ratings
5star-icon(403)
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3star-icon(39)
2star-icon(25)
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Full of contaminants
Quality :
2
Value :
3
This insulation is filled with plastic shreds, candy wrappers, and a surprising amount of other non-paper items. These contaminants can reduce the insulating value of the cellulose and plain make it look cheap.
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4
0
I added Green Fiver to my existing 1 inch fiver insulation and it really reduces energy loss even...
I added Green Fiver to my existing 1 inch fiver insulation and it really reduces energy loss even I got only 8 inches deep so far knowing that the minimum for Texas have to be 12 inches but I ran out of money. Now my AC system barely turn on between 10:30 pm and noon even on those days we pass 100ºF. I notes on my daily electric consume there are no more picks it is much more steady with a decrease of electricity consume of around of 15%: Great! I cannot way to finish this project until I'll get at least 12 inches deep of Green Fiver insulation in my attic.
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1
0
Good value and and shipped directly to home fast. Installed easily with free rental of blowing m...
Good value and and shipped directly to home fast. Installed easily with free rental of blowing machine!
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0
0
We bought 105 bales of it on a friday afternoon...
We bought 105 bales of it on a friday afternoon and installed 75 in my daughters house Saturday morning. It all went well till it got hot and they started to off gas a solvent type smell. It got so bad they couldn't stay in the house. I called Green Fiber with a complaint Monday morning and after some words they agreed to hire someone to remove and install a different insulation. I've used this insulation before and never had a smell like this before so I hope this was a bad batch. Now I have 30 bales of this garbage to dispose of or take back. Pay the extra $$ and use blown in fiberglass instead.
Was this helpful?
7
0
Blew about 30 bags of this into my attic 7 years ago. My main complaint is this stuff settles ov...
Quality :
1
Value :
2
Blew about 30 bags of this into my attic 7 years ago. My main complaint is this stuff settles over time and you loose R Value. When I say it settles, it REALLY settles. If you can see in the picture this insulation was covering the duct work by the time I was done. As you can see now it has settled a good 6 inches.
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2
0
I was a little disappointed in all the plastic that...
I was a little disappointed in all the plastic that I had to get unwrapped from the shaft of the blow machine from the material. It was all cleaned off when I started before blowing in. The blowing machine and hose were badly damaged by someone using fiberglass in the machine prior to me using it.
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0
0
Dont let the naysayers talk you out of doing this yourself! My wife and I took a day and install...
Quality :
5
Dont let the naysayers talk you out of doing this yourself! My wife and I took a day and installed 146 bags. We blew an additional 12 inches over 6 inches of blown in fiberglass. It is dusty but no so bad that a simple dust mask wont work. do your homework and get everything sealed up before you start and it will be fine. I used a tarp taped over the back door and a tarp over the attic access to keep the dust out of the house and it worked flawlessly. the only dust that got in the house was from contact transfer from my clothes as I climbed up and down the ladder. Bruce in tool rental at Joplin #34042 was amazing! He gave me pointers that were awesome!
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5
0
It's fine if they have machines in
It's fine if they have machines in
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1
0
I insulated an attic crawlspace of 220 sq ft up to R49 with 25 bags. The preparation of air seali...
Quality :
4
Value :
5
I insulated an attic crawlspace of 220 sq ft up to R49 with 25 bags. The preparation of air sealing the attic was tedious but everything to do with blowing in the insulation was easy. It only took 1.5 hours with one guy on the blower and one guy in the attic. I can tell the difference in comfort in the space below now. We fed the hose from the attic out through a window to the blower below. We used the large "drum" style blower from HD and it worked great. It was actually an enjoyable process! Some of the tips from other reviewers I thought were most helpful: -wear goggles, N95 mask, and over ear protection. the ear protection for the hose operator and mostly to keep dust out. -the blower operator should break up blocks in a separate bin and load them slowly into the blower hopper as you go. -I didn't do this, but I wish I had taken another reviewer's advice and put up a shower curtain over the hatch. A lot of dust gets blow back into the living space and it took about an hour to clean up. -use a good light pointed up toward the ceiling or a headlamp to see through the dust. -I also didn't do this, but it would have been nice to have taped an extension on the end of the hose to reach the ends of the rafters. -It was helpful to use a walkie talkie call function to tell the blower operator to turn the blower on and off. If you get a good rhythm you only actually have to do this a few times. -I grabbed some free measuring tape papers from the insulation aisle at HD. It is extremely helpful to have something to gauge the depth instead of just eyeballing it. -Don't blow insulation directly into your soffit space. You'll want to vent it and block it.
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5
0
Overall is a good value. I've been packing this stuff into the walls of my house using a home bui...
Quality :
4
Value :
5
Overall is a good value. I've been packing this stuff into the walls of my house using a home built insulation blower. Basically a 55 gallon drum with agitator feeding through a Harbor Freight dust collector blowing through a 1 1/4" hose. Be aware that attics go fast, walls not so much. Slow and steady gives much better results when filling walls. Each section of wall I've pulled the vinyl siding off the outside, drilled a 2 1/2" hole near the bottom, stuffed the hose up and fill. When the flow slows down bring the hose down a little at a time to allow the blower to pack the insulation in tight. When I get to the bottom flip the hose over and stuff it down to pack the bottom in tight too. Then follow up with a 2 1/2" tapered wood plug. (It would be nice if Home Depot sold these in less than 400 count and smaller than 3") I ended up getting the plugs from JR Products. As you work watch out for fire blocking and blocking around the windows as you work. If you hit a block you'll need to drill another hole above the block and fill that cavity. Filling above windows and doors are obnoxious but it is worth it to have the job done right. When done with a wall I have check it the next morning with a thermal imaging camera to make sure I haven't missed anywhere. The before and after images show a radical difference. But the real difference is how the inside of my home feels. It is more cozy and warm on the cold mornings. The reason I give 4 stars is because of the amount of plastic mixed in with the material. Every other bag I have to stop and clean the agitator blade off or I get a loud thumping noise from the hopper and the flow slows to a crawl. If a larger piece gets onto the opening of the hose it clogs the blower and I have to stop and clean it out.
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