0041343001552

TUFF-R

Model 193829

Internet #100322375

Store SKU #163524

Store SO SKU #621947

1-3/8 in. x 4 ft. x 8 ft. R-8.9 Foam Insulation

Frequently Bought Together

Product Overview

The TUFF-R R-8.9 1-3/8 in. x 4 ft. x 8 ft. Foam Insulation is Energy Star compliant and made with high-performance polyisocyanurate foam core for exceptional efficiency. It is lightweight and installs easily.

  • 4 ft. x 8 ft. coverage area
  • R-8.9
  • Energy Star qualified to meet or exceed federal guidelines for energy efficiency for year-round energy and money savings
  • Radiant, barrier-quality aluminum-foil facers on both sides (one side reinforced) for excellent durability and water-vapor resistance
  • High-performance polyisocyanurate foam core for high efficiency
  • Lightweight and easy to install
  • How much do you need? Let our calculator help:
    Insulation calculator button

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.

Specifications

Dimensions

Details

Warranty / Certifications

More Products With These Features

Search

Customer Questions & Answers

4 Questions5 Answers

Customer Questions & Answers

1-3/8 in. x 4 ft. x 8 ft. R-8.9 Foam Insulation
1-3/8 in. x 4 ft. x 8 ft. R-8.9 Foam Insulation

Ask your questions. Share your answers.

 
 
Clear Search Term
 
 
Sort By:
 
2 answers

Attic floor?

This question is from 1-3/8 in. x 4 ft. x 8 ft. R-8.9 Foam Insulation
Asked by
Read all my Q&A
December 27, 2015
Can this be walked upon - for example if it were on an attic floor?
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answers (2)

Asked by
Massachusetts
Read all my Q&A
Home Improvement Profile: Professional
May 24, 2016
Answer: 
Dear RandomUserID: No foam board product is tough enough to be walked on. Foam board is also very flammable and must be covered by an approved "thermal barrier" in any occupied space or storage area, e.g. your attic. 3/4" plywood is accepted in most areas, but check with your local building inspector first. This would also give you a solid surface to walk on.
A few more tips:
(1) Seal all of the Read More
Dear RandomUserID: No foam board product is tough enough to be walked on. Foam board is also very flammable and must be covered by an approved "thermal barrier" in any occupied space or storage area, e.g. your attic. 3/4" plywood is accepted in most areas, but check with your local building inspector first. This would also give you a solid surface to walk on.
A few more tips:
(1) Seal all of the air leaks first: Leaking air and the 'stack effect' account for much of the energy lost into attics. Recessed lights are a #1 culprit, along the gap around an interior chimney. If you have recessed lights, cover them with Tenmat covers and seal the edges with DAP 230 to block leaks. See: Tenmat Model # FF130E Home Depot Internet # 204286308 Store SKU # 1000012747 If you have a chimney that runs through the attic, seal the gap around it with metal flashing and seal the edges with fireproof sealant to block air leaks. See: 3M Model # CP-25WB+ Home Depot Internet # 100166701 Store SKU # 163096 Seal other gaps and cracks, e.g. around plumbing vent pipes, with Great Stuff foam.
(2) Roxul ComfortBoard is a good alternative to foam board. It provides R4 per inch, almost as much as foam board --- and is fire resistant. You could lay 1/2" plywood over it as a walking surface, with no worries about flammability, "thermal barriers" or your building inspector. See: Roxul Model # RXCB11224 Home Depot Internet # 206789748 Store SKU # 1001748089
(3) If you install foam board or ComfortBoard, seal all of the joints and edges carefully to block air leaks. The 'Windows and Doors' version of Great Stuff foam works well; the cured foam remains flexible to avoid cracks as things expand and contract. Do not install Great Stuff near anything that gets hot, however -- it is flammable, just like foam board. Use the 3M fire barrier sealant instead.
I hope this is helpful.
Mark Read Less
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0

January 23, 2016
Answer: 
The TUFF-R Insulating Sheathing is too soft to be walked upon. It does not have load bearing ability.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
 
1 answer

Can TUFF-R R-8.9 be used as heating/coolng metal duct insulation in basement?

This question is from 1-3/8 in. x 4 ft. x 8 ft. R-8.9 Foam Insulation
Asked by
Middletown,NY
Read all my Q&A
December 29, 2015
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answer (1)

January 24, 2016
Answer: 
This insulation will work for basements and exterior sheathing.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
 
1 answer

Can you sandwich two layers of this insulation in a 3 1/2 inch stud wall?

This question is from 1-3/8 in. x 4 ft. x 8 ft. R-8.9 Foam Insulation
Asked by
Read all my Q&A
December 10, 2015
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answer (1)

Asked by
Massachusetts
Read all my Q&A
Home Improvement Profile: Professional
May 24, 2016
Answer: 
Dear Mark: Yes. This is called the "cut and cobble" method, which takes more time than spray foam -- but you can do it yourself, and you can install it when the temps are too cold for spray foam. We recently completed the deep remodel of a home along the shore in Massachusetts, for example, and filled the walls with XPS foam board. A photo is attached.
A couple of installation tips:
(1) You don't Read More
Dear Mark: Yes. This is called the "cut and cobble" method, which takes more time than spray foam -- but you can do it yourself, and you can install it when the temps are too cold for spray foam. We recently completed the deep remodel of a home along the shore in Massachusetts, for example, and filled the walls with XPS foam board. A photo is attached.
A couple of installation tips:
(1) You don't need to carefully cut the pieces for a tight fit. Even a 1" gap is fine, because you will seal the edges with Great Stuff foam.
(2) Carefully seal all of the seams and edges with the 'Windows and Doors' version of Great Stuff foam, to block air leaks. The 'Windows and Doors' version remains flexible after it cures, to avoid cracks as things expand and contract.
Another option is Roxul ComfortBatt insulation, which provides R4 per inch -- almost as much as foam board, and it is not flammable. Seal the edges and joints, just like foam board. See: Roxul Model # RXSS31525, Home Depot Internet # 202531875 Store SKU # 982937
I hope this is helpful.
Mark Read Less
User submitted photo
User submitted photo
+1point
1out of 1found this answer helpful.
Was this helpful?helpful1unhelpful0
 
1 answer

Is this product fire rated if so approx burn hours

This question is from 1-3/8 in. x 4 ft. x 8 ft. R-8.9 Foam Insulation
Asked by
chelsea ma
Read all my Q&A
October 31, 2015
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answer (1)

Asked by
Massachusetts
Read all my Q&A
Home Improvement Profile: DIYer
November 15, 2015
Answer: 
Dear Carlo: No. In fact, Tuff-R foam board is very flammable like most foam products. It should never be installed near anything that gets hot, e.g. a furnace, chimney, exhaust duct, etc. It must be covered by a "thermal barrier" in occupied space, including a garage. A "thermal barrier" equals 1/2" drywall. A thermal barrier is also required in an attic or crawl / sub floor space if they are accessed Read More
Dear Carlo: No. In fact, Tuff-R foam board is very flammable like most foam products. It should never be installed near anything that gets hot, e.g. a furnace, chimney, exhaust duct, etc. It must be covered by a "thermal barrier" in occupied space, including a garage. A "thermal barrier" equals 1/2" drywall. A thermal barrier is also required in an attic or crawl / sub floor space if they are accessed for storage.
If you need fire-rated insulation, Roxul rock wool is a good choice, with solid R4 / inch performance. Roxul is not flammable, and is also effective at deadening sound. See: Home Depot Model # RXSS31525 Internet # 202531875 Store SKU # 982937 Stiff board-like versions of Roxul are also available from your Home Depot's Pro Desk, e.g. Roxul ComfortBoard IS.
I hope this is helpful.
Mark Read Less
+1point
1out of 1found this answer helpful.
Was this helpful?helpful1unhelpful0
1 of 1
  • 2016-08-25 T13:56:20.359-05:00
  • bvseo_lps, prod_bvqa, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasquestionsanswers
  • loc_en_US, sid_100322375, prod, sort_default
1 of 1
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 42ms
  • QUESTIONS, PRODUCT

Customer Reviews

Rated 5.0 out of 5 by 1 reviewer.
Rated 5.0 out of 5.0 by The best bang for your buck when you're building a Redbull Flugtag Glider! This structural foam was a huge asset to my design of a glider for Redbull's Boston Flugtag Competition. Easy to set up on a CNC table, easy to mill, great for designing press fits over PVC pipes, it even provided unexpected rigidity to our 22' wing span. Follow our progress at https://www.facebook.com/90sNostalgiaFlugtag/ Thanks for the wings, Home Depot! August 10, 2016
  • 2016-08-15 T12:18:00.410-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_1, tr_1
  • loc_en_US, sid_100322375, prod, sort_default
1-1 of 1
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 109ms
  • REVIEWS, PRODUCT