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Model #312

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5 Gal. Radiant Barrier for Roofs and Exteriors

  • Designed to prevent external surfaces from loading with heat
  • Acts as a water-tight barrier and offers sound dampening
  • Resists rust, cracks, dirt, pollution and other external stimuli
  • See More Details

Frequently Bought Together


Product Overview

SUNSHIELD is a flexible water- based high-performance coating solution that prevents and blocks solar heat from loading when used on any external surface / application where solar heat loading is a problem. Once painted with Sunshield, the external surface will be physically cool to the touch and at an ambient surface temperature, regardless of how hot it is outside or the type of surface that Sunshield has been applied to. Even on a bare metal roof, when Sunshield is used, if it is 85°F outside, then the surface temperature of the metal will be 85°F with Sunshield, rather than 160°F without Sunshield. SUNSHIELD will greatly reduce the expansion and contraction on a roof that causes leaks. It also prevents corrosion and surface deterioration. SUNSHIELD will not peel, crack or lose of adhesion. SUNSHIELD is more than just a white reflective coating as it does not allow external surfaces to load with heat. SUNSHIELD resist dirt, mold, mildew and pollution to increase longevity and reduce surface maintenance. SUNSHIELD is a durable USDA approved, energy star green coating. SUNSHIELD provides a water tight barrier and has a sound dampening quality making a structure more comfortable. Coverage area: 100 sq. ft. per Gal. (9 m Gal.) comes in 5 Gal. pails. SUNSHIELD contains 4 unique ceramic materials that are designed to block and prevent 95% of solar heat from ever loading.
  • More than just a reflective white coating - blocks solar heat gain resulting from visual light, ultra violet (UV) and infrared (IR) 5 Gal. pails
  • SUNSHIELD is a high performance ceramic compound
  • Shatters high air conditioning / cooling cost when applied to all roofs and exterior walls
  • SUNSHIELD is a green coating with exceptionally low voc (21 gram/liter)
  • Resistant to dirt, mold, mildew and pollution and has a 10 year life span
  • Excellent for roof and exterior wall applications; coverage: 100 sq. ft./Gal. (9 sq. m/Gal.)
  • ENERGY STAR and USDA approved
  • Insulation for containers, transportation vehicles, refrigerated containers, reefer trucks, trailers/motor homes and railroad cars
  • Water-tight barrier and sound dampening capability
  • Used as a system over metal, concrete, modified bitumen, rubber, masonry and wood to stop heat gain, moisture penetration and corrosion development
  • Withstands large temperature variances without peeling, cracking or loss of adhesion
  • Designed for flexibility and elongation to move with the substrate and withstand the rigors of contraction and expansion
  • Can be applied to asphalt shingles (with superbase as a primer), metal, masonry, wood, tar, concrete, aged foam, fiberglass
  • Use in any application where solar heat loading is a problem
  • Click here to learn more about Eco Options and Energy Efficiency
  • How much do you need? Let our calculator help:
    Insulation calculator button

Info & Guides

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Product Width (in.)


Number per Package

Questions & Answers


Do you need primer on new clean concrete and metal vertical sufaces? Does it help with adhesion ...

Asked by Doug April 9, 2021

We recommend using the Superbase primer sold at Homedepot.com on virgin concrete, modified bitumen, rubber, asphalt, shingles, etc. You do mot need the Superbase primer when applying Sunshield direct to metal or previously painted or sealed surfaces with good adhesion. Yes when applying Sunshield on virgin concrete the Superbase primer will fill the cracks and seal the surface so that you spread rate / yield stays consistent at 95 square feet per gallon when applied at 17wet mils (10 dry mils). Otherwise the spread rate will decrease if applied on virgin concrete without the Superbase primer or sealing the concrete prior to applying Sunshield. If the virgin concrete is sealed or primed with another product other than Superbase, then realize that Sunshield’s adheshion to the surface will be dependent on the adhesive ability of the alternative primer or sealer.

I asked if this will keep a metal picnic table cool to the touch. Answer was "Yes Sunshield will ...

Asked by camp October 8, 2020

Because Sunshield if scrubbed in an abrasive rough way when cleaning, you could remove Sunshield. I say this because the application you mentioned is on a table where it most likely would be cleaned daily.

For our outdoor business we had to get several metal picnic tables made. Now we need to paint the...

Asked by camp October 3, 2020

Yes Sunshield will keep the surface cool very easily, however, there could be an issue with abrasive washing of the table once Sunshield has been applied.

How many square feet did you average per gallon

Asked by Terry August 24, 2020

95 square feet per gallon.

What colors are available for brick?

Asked by John August 15, 2020

We are able to tint Sunshield to earth tone colors. Sunshield is a high solid coating with only 12% added water,so in order to change the color of Sunshield a lot of dye must be added which decreases the performance of Sunshield. The darker Sunshield is tinted the performance decrease. We have a color chart which shows what colors Sunshield can be tinted and the associated performance impact. If you would like to receive the color chart for Sunshield, email help@spcinfo.com and we will respond as soon as possible.

Is this product effective when sprayed on rafter, decking in attics ?? Or is it preferable for exterior applications only??

Asked by Oscar August 13, 2020

Hi Oscar, thank you for your inquiry. This item is preferable for exterior applications only. We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot!

what roller is suitable for applying this paint to a wall?

Asked by Chris August 11, 2020

1/2 or 1/4 inch nap roller

I need a barrel of mid-brown color to match. Can that be made?

Asked by Chris August 11, 2020

Yes but it must be tinted at our factory. Sunshield has only about 12% added water and the rest is solid material, so in order to change colors, a lot of dye must be used. This will significantly decrease performance. If further help is needed, please contact help@spcinfo.com

Can Sunshield be applied to the underside of a polycarbonate roofing in a green house

Asked by Jimmy August 4, 2020

No. Sunshield is designed to face the sun. When applied at the proper thickness and facing the sun, Sunshield will prevent solar heat loading.

Can you paint over this? I want to repaint my house and I want to paint with this first then pai...

Asked by Michelle July 15, 2020

No. Sunshield is most effective when it faces the sun. It blocks 95% of the sun’s heat from loading. The roof is the largest surface area of your house that faces the sun and it is here where most of the heat gain takes place. Many clients paint the roof with Sunshield and the remainder with regular paint.

5 Gal. Radiant Barrier for Roofs and Exteriors - page 2

Customer Reviews

  • 4.5
    out of 44 reviews
  • 92% recommend this product
Filter by:
Showing 1-10 of 44 reviews
It just simply WORKS!!!
When we first bought the product, the price was concerning. Would the product work? How about company support? For us, this was a major investment into a product we knew nothing about. We were using it to coat the entire exterior surface of an old shipping container, which would house the entire contents of our home for about two years. We really needed a product that would keep the heat from doing damage to our furnishing and electronics. We took the leap and paid the price. We could not be happier. This product arrived timely and was as described and expected. AWESOME... it out performed beyond our expectations. You could touch the metal of the container and it would be so hot you could not keep your hands on the metal....YET....just inches away where we had already applied the product, it was cool (on the outside) and on the inside of the container, the metal felt like it had just been taken out of the refrigerator. Once we had the entire container completed, the inside felt like it was being air conditioned (outside temps over 80 degrees). We made the decision to apply two coats. One worked fine, but we found two was better. As for coverage, for us, the product covered way more footage than was advertised. Two 5-Gallon buckets covered an entire 40' High Cube container with two coats and almost half a second container with two coats. We had some concerns and questions about how we were applying it. We were always able to get right through to a human being at the manufacturer. We always got answers and assurances. They were wonderfully helpful. That is something special in these days and times or answering machines and never call backs. They were very helpful in all matters. Would I buy the product again? Yup, we already bought more and put it on other things, like the top of our 20 foot trailer. Was the price really worth the value of the product? ABSOLUTELY!!! Hands down, the value you get from the product is certainly worth the price. Advice: Before you purchase, give the guys at SPI a call and discuss what you plan to use the product for. They will give you guidance and talk about things you should be aware of. But, my best advice? If you have something that you want to reduce the heat build up on, run out and buy this product. It does exactly what they say it will do. We are HAPPY consumers of this product.
by Florida
3 people found this helpful
Extremely thick, hard to paint, but works greats. Cool to the touch as well as reflects heat to k...
Extremely thick, hard to paint, but works greats. Cool to the touch as well as reflects heat to keep cool on the inside.
by Texansun
Almost 4 coats on a 8x32 un-insulated race trailer, AC could not keep up in the summer, it was mi...
Almost 4 coats on a 8x32 un-insulated race trailer, AC could not keep up in the summer, it was miserable inside. Hope it will better next season. My un-scientific test on a plain sheet of aluminum laid on the roof revealed a 10 degree difference on a 70 degree, sunny December day here in Alabama. Stuff is thick, stirred with a 1/2 drill and paddle mixer. Washed and scrubbed roof with TSP week one, then a week later put the first coat on, then a week later the remaining coats. Dried to touch pretty quick. Waited just over an hour between the other coats, otherwise would have been painting in the dark. Used a 1/2 nap roller.
by TF
1 person found this helpful
EXCELLENT product. Does everything the manufacturer says it does! I noticed my air conditioner cy...
EXCELLENT product. Does everything the manufacturer says it does! I noticed my air conditioner cycles ON much less and that the house stays cooler throughout the hot parts of the day. Easy to apply - I used a 9 inch roller and it took one day (6 hours) each to cover 1,000 sq ft with the primer and then the next day I applied the SUNSHIELD. READ the spec sheet - manufacturer's specs for coverage are spot on.
by HDChuck
8 people found this helpful
I used it for a flat roof in Downtown Manhattan over SBS. Excellent product but you need to use ...
I used it for a flat roof in Downtown Manhattan over SBS. Excellent product but you need to use Super Base (sold at HD also) from the same company as a primer.
by Coil
2 people found this helpful
Exellent for my application.
The back side of my two story house faces west. The lower half is block with stucco applied. The upper half is wood siding. (50 yrs. old) The stucco area got so hot, that you could not touch it. I applied 2 coats of this product and the difference is AMAZING! The temperature is 85-95 degrees and the stucco is barely warm to the touch in the hottest part of the day. I am now working on the wood siding. (Got to replace some of it). Pricey, but well worth it. My AC is working much better and I'm only half done. My neighbor installed vinyl siding 3 years ago and it is warped and distorted on the back of his house, due to the heat. I hope it will last for a few years.
25 people found this helpful
Stuff is fantastic! No heat gets through it....
Stuff is fantastic! No heat gets through it.
by TED
Product was great as advertised. However, for me, the best part was the ability to contact the wa...
Product was great as advertised. However, for me, the best part was the ability to contact the warehouse and order department for expert advice. Knowledgeable and eager to share product knowledge, the Orders department did a fantastic job of answering my questions.
by Houdinis
Based on some reviews I expected this product to be thicker than normal paint and I ordered 10 ga...
Based on some reviews I expected this product to be thicker than normal paint and I ordered 10 gal total- 5gal pail x2. Product description said that 1 gal covers only 50 sqft, and I had about 500 sqft to cover. It turned out to be watery and not any thicker than basic paint. Even after applying double coat there was still paint left in the first 5 gal pail. I returned the second 5 gal pail to Home Depot. One of the rooms that this product was supposed to insulate from the sun still got very hot while outside temperature was under 90 deg (this is way below the 115 deg we see sometimes). So I cannot say it was worth the cost and the trouble of ordering it online. Maybe I got unlucky and received a substandard batch...?
by Disappointed
Response from Spc HelpdeskNov 1, 2020
Disappointed, we are sorry that your experience with Sunshield did not meet your expectations. Sunshield has been sold in Home Depot for more than 10 years and we have never received a product review that stated that Sunshield did not work performance wise. Sunshield is designed to be applied at 95 square feet per gallon and not 50 square feet per gallon as you stated. You mentioned that your use of Sunshield was for a room. Did you use Sunshield in the inside wall of the room or the outside wall of the room facing the sun? Sunshield is designed to be applied on the outside surface area of your structure, facing the sun.

Sunshield will prevent solar (Sun) heat loading on any external surface type and in any application where solar heat loading is a problem when painted on the outside surface of the structure. Sunshield is an amazing product when used properly. Sunshield shatters high cooling cost and prevents solar heat loading. Please reach out to us at help@spcinfo.com. We would like to discuss your application and how Sunshield was used, with the hope of finding out what went wrong.

As stated, we have only received a few bad reviews with Sunshield over the last 10+ (plus) years from clients and none have been because it did not work. We have shipped Sunshield to tens of thousands of satisfied clients and your review is the first one to say it did not work in blocking solar heat. We would like to understand more about your application and how you used Sunshield. We have never had a review that states Sunshield was watery. Again, we would like to know more of your application. So, please contact us to discuss. Thank you.
Sunshield was applied by roller and brush - it was...
Sunshield was applied by roller and brush - it was certainly thick as prior reviews mentioned but application was no problem. When the second coat was applied, it was obvious that the reflective properties of Sunshield were at work; in blazing sun and with temps in the mid to upper 90s, the surface remained cool to the touch; indoors, the AC was able to run less and temperatures were significantly lower.
1 person found this helpful
Showing 1-10 of 44 reviews