Roberts AirGuard 630 sq. ft. 40 in. x 189 ft. x 1/8 in. Value Roll of Premium 3-in-1 Underlayment with Microban-70-105-1 - The Home Depot


Model # 70-105-1

Internet # 203139756

Store SKU # 103848

AirGuard 630 sq. ft. 40 in. x 189 ft. x 1/8 in. Value Roll of Premium 3-in-1 Underlayment with Microban

Roberts AirGuard 630 sq. ft. 40 in. x 189 ft. x 1/8 in. Value Roll of Premium 3-in-1 Underlayment with Microban

This item has been discontinued.
The Home Depot no longer carries this specific product.

$0.47 / sq. ft.
$296.00/  roll  (covers 630.0 sq. ft.)


Model # 70-105-1

Internet # 203139756

Store SKU # 103848

Store SO SKU # 1000410147

Roberts AirGuard Premium 3-in-1 Underlayment is ideal for installing laminate and engineered wood floors. AirGuard provides the moisture barrier, sound reduction and cushioning, all 3-in-1, required for a proper, quality installation. AirGuard is the only underlayment manufactured with both Microban and air flow technology to inhibit mold growth. Microban inhibits the growth of odor and stain causing bacteria, mold and mildew. The air flow technology creates a pocket of constantly circulating air to further inhibit mold growth. The 8 in. overlap film protects floors from moisture. Sound suppression characteristics make AirGuard perfect for installation in multi-level buildings. For more information, please refer to the product data sheet.

  • Patented air flow technology and Microban antimicrobial product protection inhibits the growth of stain and odor causing bacteria, mold and mildew
  • Large size roll of 630 sq. ft. provides savings over smaller rolls
  • Ideal for use over radiant heated floors
  • Seals out moisture to protect floors
  • Easy to roll out, attach and cut for fast installation
  • Sound test results of STC=67 and IIC=68
  • R-Value for heat flow of 0.39
  • Moisture passes through first layer and is blocked by second layer, allowing moist air to move and be released at room perimeter by walking on floor
  • Polyshims between plastic sheets provides cushioning and is 96% crush resistant
  • 8 inch overlap with adhesive strip

Info & Guides

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Assembled Depth (in.)  2268.000 in  Assembled Height (in.)  0.125 in 
Assembled Width (in.)  40 in  Product thickness (mil)  125 
Recommended overlap (in.)  Roll length (ft.)  189 
Roll width (in.)  40 
Antimicrobial  Yes  Commercial / Residential  Commercial / Residential 
Cushioning  Yes  Flooring Product Type  Underlayment 
Flooring type(s) used with  Laminate  Material  Plastic 
Moisture control included  Yes  Package coverage (sq. ft.)  630 
Returnable  90-Day  Sound absorbing  Yes 
Subflooring type  Any 
Warranty / Certifications
Manufacturer Warranty  To be free from manufacturing defects 


Rated 4.2 out of 5 by 27 reviewers.
Rated 5 out of 5 by Great quality product Product is high quality and easy to install. May 9, 2014
Rated 5 out of 5 by Great Investment Item compliments the laminate VERY well. I've already noticed a huge different between the heat remaining on the main level. Very easy to lay and cut. Love that it has a sticky strip to lay side to side. Definitely go with the 630ft roll online vs. the 100ft rolls in store because you save about $0.30/ sq ft. Order was pretty fast, got it in less than 2 weeks despite it being out of stock when I first placed the order. November 17, 2013
Rated 4 out of 5 by Good product. Easy to use. Feels solid underfoot. I installed this 3-in-1 underlayment product under approximately 500 sq. ft. of a popular brand of laminate flooring sold at The Home Depot over concrete (treated with DryLock masonry waterproofer) in a finished basement. I considered buying flooring with the underlayment preattached, but the preattached underlayment was inferior (cheap foam) and the cost of the flooring with the underlayment preattached was much greater than purchasing underlayment and flooring without underlayment preinstalled separately. The preinstalled underlayment also leaves a small gap where the laminate flooring clicks and locks together, which is another reason I decided it was better to purchase underlayment and flooring separately. This product is light-weight (about 20 lbs for the entire 630 sq. ft. roll) but because it comes in a single continuous roll with a length of 189 ft., it can be a bit awkward for one person to carry. The thickness of the material is 1/8 inch (3 millimeters). The usable width of product is 40-inches with an 8-inch overlap which has a tacky adhesive which allows for the product to be reposition, if necessary. I wanted a more permanent and impervious seam, so after positioning the seam where I wanted it, I ran a strip of 2-inch Gorilla-brand duct tape along the entire length of each seam, as a sort of belt and suspenders approach, to ensure the product didn’t separate over time. Having previously installed laminate and engineered hardwood using a different brand of underlayment that didn’t have beads to allow air to pass underneath, I was concerned the floor would feel spongy, but thankfully it doesn’t. When I removed the old underlayment, I noticed an accumulation of black mold and a moldy smell. My basement is dry and the sump looks like it’s never seen water, so I was surprised to find mold. The airflow created by the beads floating about the floor is supposed to defend against mold. While it’s too early to know if this underlayment effectively controls mold, it does provide the added benefit of a small R-value, which is noticeable as compared to the single-layer product I had used in the prior installation. The product is essentially thin plastic sheeting with Styrofoam beads adhered to one side. The beads do come off during unpacking, handling, and product installation, but losing a few (hundred) beads doesn’t materially affect the installation or product effectiveness. I’d read that the product will lose some height due to compression under weight, so I held off reinstalling the baseboard moulding for a couple of weeks to allow the floor to settle so as not have an unsightly gap between the settled flooring and the base moulding. Overall, it’s a good product and is reasonably priced as compared to other underlayment products. It cuts easily with a razor knife or scissors and is easy to work with. Although, in my opinion, the products doesn’t look and feel “high-quality’ compared to other underlayment products, it does work well which I suppose is all that really matters, especially since no one sees the underlayment after it’s installed underneath the flooring. June 4, 2014
Rated 5 out of 5 by Excellent floor underlayment This roll is huge! 630 sq feel is enough for most rooms (bedrooms are typically 120 sq ft). This underlayment has a very nice feel and is a better quality than the basic clear stuff. It rolls out easily and cuts with either scissors or a utility knife. It give a nice firm feel to the flooring after it's installed. No mess and easy to use - I highly recommend this. Helpful tips: 1. We used this for our laminate flooring. We rolled this over the old 1960's tile (stuff all old houses have). The floor was pretty flat, so we didn't have to level it. If you're laying this over a floor that has high and low spots, I recommend using a self levelling product first. 2. If you have a concrete floor and need a vapor barrier, you can use this alone, but make sure you completely cover the floor - any open gaps will allow the moisture to come up and potentially damage your floor. 3. Lay out one row of underlayment at a time. This stuff does tear if you're working on it - even walking on it. 4. If you need better quality and easier installation, use this product. It's a higher grade than the cheaper clear stuff and you do feel a difference. It feels much firmer under foot. You get what you pay for! December 2, 2014
Rated 5 out of 5 by Airguard Premium 3-in-1 Underlayment I have been using this product for a few years now and will only use it and nothing else. I have installed several floors for myself, family and friends. I have recommended to friends as well as contractors that I know and all have become fans. It cost more than Rosen or felt paper but you get what you pay for. This avoids the moisture problem for floors, as well as possible squeak problems of wood floating on wood. Also helps to kill some sound between levels. March 14, 2012
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