Model # 320821

Internet #202532854

Store SKU #614637

R-Tech 1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing
0732813100072

R-Tech

1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing

  • Numerous household, hobby and construction uses
  • Easy to cut-to-size and to install
  • Poly-facer provides excellent durability & flexibility

Frequently Bought Together

Product Overview

R-Tech 1 in. x 4 ft. x 8 ft. Insulation Sheathing cuts easily to size. Facilitating its installation as wall sheathing, basement and foundation insulation or siding underlayment. This product meets federal guidelines for energy efficiency.

  • Designed for use as wall sheathing, basement and foundation insulation or siding underlayment
  • Energy Star qualified to meet or exceed federal guidelines for energy efficiency for year-round energy and money savings
  • Cuts easily to size to make installation a snap
  • Poly-facer on both sides for flexibility and durability
  • Moisture-resistant design to help maintain a water-tight seal
  • Note: Product may vary by store
  • How much do you need? Let our calculator help:
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Specifications

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Warranty / Certifications

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Customer Questions & Answers

Can this Insulating Sheathing be used to Insulate dog houses?

Can this Insulating Sheathing be used to Insulate dog houses?
Asked by: Joey
This could be used as a internal insulation for a dog house as long as the interior was covered buy another materials such as OSB or plywood and the same with the external part of the house. This is not a product that is to be exposed directly to weather and likely would not be good for a dog either as they may want to play with the product. It's like Styrofoam underneath the protective layer
Answered by: DSC
Date published: 2017-03-17

can i use it to insule a complete concession tráiler?

Asked by: jesus
I would not recommend this product for use in a concession trailer that had high levels of heat from Open Flame source. It is combustible and must be covered by a non combustible covering. Also I would recommend a thicker product for that type of application unless space is in the absolute minimum.
Answered by: DSC
Date published: 2017-03-17

Can I use it on an interior block walls as insulation. I'm building a house of concrete blocks it gets hot and cold.

Asked by: Julian
You can use this on the interior side of concrete blocks such as in a basement but remember the product is not fire retardant and must not be exposed to open flame unless covered buy something like gypsum. Check with your local fire and building codes to ensure that you meet those requirements.
Answered by: DSC
Date published: 2017-03-17

Is this material paintable with water base latex paint ?

Asked by: Richard
The answer is yes. But the real issue is that this material should NEVER be exposed anywhere. There are two reasons. One is that this is rather delicate material and will gouge easily and repair would be difficult. The biggest reason is that this material is highly flammable and will give off highly toxic smoke if it does catch fire. It should be used behind fire resistant material like sheet rock or even a layer of OSB or plywood would work.
Answered by: DIYguy
Date published: 2017-02-13
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Customer Reviews

1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing is rated 4.8 out of 5 by 13.
Rated 5 out of 5 by from Project I have a 5 because the product was great. But my project should have a 2 inch thick to do the job correctly. Unfortunately I was unable to puchase or have shipped. That really disappointed me.
Date published: 2017-03-22
Rated 4 out of 5 by from Does what it is supposed to do. Tape/seal seams, Install per recommended best practices... Does what it is supposed to do. Tape/seal seams, Install per recommended best practices...
Date published: 2017-03-07
Rated 5 out of 5 by from Excellent Bought 8 pieces and they worked perfect for what I needed them for.
Date published: 2016-12-14
Rated 5 out of 5 by from perfect for my basement project perfect for my basement project
Date published: 2017-03-09
Rated 5 out of 5 by from basement remodeling; awesome difference I put this up in my basement in a 14 yr old home that has no basement / cinder block type of foundation. Half of the foundation is below grade and the back 1/2 is above grade. Living in PA, there are many cold evenings and the home has always seemed cold. The basement being a huge area and not insulated at all. I have a YouTube video that I'll be posting shortly to show the dramatic difference. I applied the product to the basement walls ; Mylar side facing the block and adhered with liquid nails heavy duty due to cost and application of 60 panels. The glue DOES NOT affect this poly extruded foam from the Mylar and provides just enough grip to keep panels adhered. Took a thermal reading from the insulated walls and the UN-insulated block walls. 10 degree F change increase on the insulated side vs the non insulated block. I have owned this home for 5 yrs and wondered why it cost so much to heat. Well not anymore. I am in the midst of applying R13 faced insulated batts into 2x4 walls placed 1 inch away from the wall board; The difference is STAGGERING in home much heat retention is now in the basement. Best advice that I found is that the Mylar in basements faces out; and that liquid nails heavy duty is the best way to adhere and not damage the mylar. Even though liquid nails says it's not for plastic; it does work and is a very cost effective adhesive for these boards when used in larger liquid nails tube dispensers.
Date published: 2016-01-11
Rated 5 out of 5 by from Works great, easy to cut and install! I recently used this type of insulation to insulate my garage. It was very easy to cut and install and was much less messy or itchy then using traditional fiberglass insulation. I put the insulation in, then sealed all edges with GreatStuff foam to ensure it was completely air and waterproof. I will definitely use this again and recommend to anyone when insulating a garage on a low budget.
Date published: 2013-11-06
Rated 4 out of 5 by from this product needs proper instructions. No where on the product or on the instructions for installation does it say that the lettered polymeric facing should be removed before applying adhesive. None of the reviews comments on this either. This would be quite helpful to know.
Date published: 2015-04-17
Rated 5 out of 5 by from insulation I use this product for windows in the summer to keep the heat out I use it as a filler around the air conditioner
Date published: 2016-08-09
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