Radiant Barrier Insulation Blog - InsulationStop.com
Radiant Barriers and Reflective Foil Insulation
Take a look at this short post showing Infra insulation, the original reflective foil insulation used to insulate wood floor joists. The three examples are:
- In Floor Joist
- In Floor Joist – Radiant heat in floor joist
- In Floor Joist – Radiant heat imbedded in concrete
The italics text below is an excerpt from the Simplified Physics of Vapor and Thermal Insulation, by Alexander Schwartz.
The applications are the same today, see how to insulate floor joists with modern materials.
Radiant Heat and Wood Floor Techniques
Heat flow in Conduction and Radiation is from warm to cold in any direction. The ground or the cellar area below a floor is usually colder than the inhabited rooms above, so there is considerable wasteful heat flow downward; first by direct conduction through the floor, then by radiation from the under-surface of the floor to the cold ground or cellar floor.
Multiple accordion aluminum has negligible conduction through its air spaces. (In any air space, heat flow by conduction is only 5% to 7% at most.) There is no convection downward. The preponderant heat flow downward is by radiation. This will be reflected back 97% to augment the heat which the floor emits upward at a 90% rate. Multiple accordion aluminum can reduce original and upkeep heating cost.
Here is a short post from our archives showing InfraStop® bubble foil insulation being used in a metal building application west of St. Louis, Missouri. This large 36,000 square foot building is used for horses. For this project we custom produced 72” x 75’ double bubble white rolls to accommodate our customer. Click here for our standard size white double bubble insulation roll.
This is great customer project to share. Thanks H .J for sharing your photos. H.J. wanted the HVAC lines running to his metal building located Southwest of St. Louis, Missouri insulated.
InfraStop® double bubble foil insulation is a perfect product to use as it is inexpensive, easy to work with, performs well, and is impervious to moisture.
H.J is very detailed as you can see in the pictures he sent over of this project. Prior to ordering, we discussed his project and shared ideas on how to best insulate his exterior HVAC lines. From here you can see how he insulated the lines from start to finish. Look at the pieces he cut to work the 90 degree elbows. What a great project!
We explained the 3 different options available when working with double bubble foil insulation and the different R-value’s associated with each option.
Option 1 (all seams taped, maintain airspace): Loose wrap the insulation, R-4.1 Option 2 (all seams taped, maintain airspace): Wrap the insulation around spacers, R-6.0 Option 3 (all seams taped, maintain airspace): Wrap insulation around spacer 2 times, R-8.0
Thanks again H.J for the photos and sharing your project. This perfectly demonstrates how to insulate HVAC duct work located outside.
Check out this video showing a shipping container insulated with reflective bubble foil insulation. Awhile ago, we provided the insulation for a shipping container building overlooking the Freedom Tower and Statue of Liberty in New York City.
We’ve been slow to get the footage of the project out, finally putting the video up on YouTube last month and now finally getting the blog post up. See the video of insulating this shipping container here.
This 3 story shipping container structure is actually an art exhibit that lies on the property of Pioneer Works, Center for Art and Innovation in Red Hook, Brooklyn. The first floor bar is topped by a second floor recording studio, where the InfraStop® was used. On top of the recording studio is a third story open air terrace.
It took a few months for the crew of 4 including artist Gregory Kloehn to cut and weld the containers, deck, staircase, and window and door openings. They also welded hundreds of threaded rods on the inside walls of the second floor to hold the wall framing members, insulation, and acoustical wall board.
The studio took an additional several weeks to complete. Here are some images of the inside at Pioneer Works, the grounds that the shipping containers are on, the shipping container second floor, and some great pics of the Statue of Liberty and Freedom Tower. If you are interested in seeing some of the actual installation of the InfraStop® foil insulation click the link to the video above.
What a great project. Look at InfraStop® insulation in action in this beautiful masonry home in Costa Rica. We spoke with our customer M.F prior to him building his home. He told us he wanted to use our insulation and explained the building and roof design. We developed a good a rapport from there.
Take a look at the project photos he forwarded to us. Even though this is a beautiful masonry home, the roof structure and design is very similar to what we do with metal buildings here in the United States. Notice the addition of wood furring over the purlins. This creates a solid thermal break and eliminates the need for the recommended ¾” drape for this same installation without furring strips.
A masonry home with a metal roof located in the tropics is a perfect InfraStop® project. All of the attributes of the insulation are needed and InfraStop® fills them all. A low profile, moisture proof insulation that reflects radiant heat, provides a vapor barrier, and provides some decent R-value. Plus, when looking at the cost of all your building components, the cost of InfraStop® is minimal.
Thank you very much for the images M.F. Thank you for sharing. We wish you well with your beautiful home. Thank you for being our customer.
How do Reflective Pallet Covers Work?
Reflective pallet covers are usually made up of a few core components all working together to shield the items inside from irregular temperatures. In addition to specially-designed sheets that are usually made of plastic or foam, the covers also include metalized films that act as reflective material.
To this end, these covers are designed with two goals in mind: minimizing the transfer of heat outside the pallet and preserving the temperature inside. In normal situations, radiant heat from sunlight exposure (for just one example) could be absorbed by a traditional pallet cover or other packaging materials, quickly causing the temperature of the associated items to rise in an unpredictable way. The right pallet cover, however, can stop this from happening no matter what is going on in the environment around it.
Even in situations where a pallet of goods may be exposed to direct sunlight, reflective pallet covers block radiant heat entirely - allowing the condition of the goods inside the pallet to be unaffected regardless of the temperature in the surrounding environment.
Extreme temperatures are one of the natural enemies of a wide range of different products. In the case of pharmaceutical goods, for example, allowing the temperature to get too high could alter the chemical composition of something like medicine, causing it to lose effectiveness or possibly to not work at all. In the case of fruits and vegetables, heat could artificially limit their lifespan - leading to a pallet of food that arrives at its destination in such poor condition that it needs to be disposed of right away.
The Major Benefits of Reflective Pallet Covers
By far, the number one benefit of using reflective pallet covers comes down to the superior temperature control capabilities they provide. Certain items that are shipped like food, flowers, pharmaceuticals and more could be harmed or totally damaged if they're allowed to heat to beyond a certain temperature. Unfortunately, due to the way that shipping facilities operate, you can't guarantee that a particular pallet will stay out of direct sunlight all day long.
With a reflective pallet cover, however, these concerns can be eliminated because they're specifically designed to block radiant heat in the first place. This is especially true when you're talking about items that are shipped in steel containers, as the heat absorbed by the metal can cause the temperature to rise to extreme levels very quickly.
By blocking radiant heat, reflective pallet covers can help preserve a safe temperature for the aforementioned types of perishable items and more, guaranteeing that they arrive at their destination as safely as possible every time.
Thanks P.G for sharing your project with us. P.G’s shop is in Central Florida, West of Orlando and was not insulated. With a metal roof, this wood framed building was unbearable in the summer months. P.G. was looking for a tough radiant barrier so we sent down samples of our InfraStop IR radiant barrier, the heaviest and toughest product on the market today.
Take a look at his project pictures he was kind enough to share with us. We checked back with P.G. after the install to see how our insulation was reflecting the Florida heat and here is what he had to say. You won’t believe the temperature difference is his shop.
InsulationStop: Regarding the insulation, how is everything working out? Do you notice a difference?
P.G: The installation process was smooth and easy. The product has made a huge difference for us. Our building has seen a 30 degree temperature drop. I am very pleased! Thank you, P.G
Thanks again for being a customer of ours and sharing your project. We really appreciate your business and feedback.
Recently we were contacted by a customer looking to use our foil insulation for creating outdoor sun shades in a desert application. Take a look at our email correspondence and his project images below. Thanks S.J for sharing your project and using one of our radiant barriers. Thanks also for the descriptive feedback. The results looks great!
Hi, I have an unusual application, and I wonder if this product would work. I live in the desert in an RV, and the direct sun here is unbearable. It heats the sides of the RV until the heat comes through.
I made 9' tall "curtains" out of 90% sunblock shade cloth (like they use in greenhouses) that cover the entire sides of the RV from the roof line, down to about 18" from the ground, and they are suspended about 8" away from the sides of the RV to allow for airflow.
Unfortunately, the sun is SO hot, that the UV & heat is mostly going right through the cloth, so I had the idea to use a product like this to line the back side of the shade cloth curtains. They are only attached to the rv at the top, and hang freely, so on a windy day they do blow & move with the breeze.
Would this product be durable and effective for this application, or would it come apart in the breeze, or from the direct sun and rain storms?
Thank you very much for your help, have a great day. S.J
After following up with S.J we were pleased that to hear his response. See below:
Hi Nick, Yes, I have used it and I'm impressed so far. It's strong, and hopefully it will not tarnish or dull from the UV & weather exposure.
I used it to line between the beams under my solar panels which are mounted flat on the roof, and it definitely lowered the temperature of the roof. I also made curtains to use under the shadecloth curtains I mentioned to you earlier. In addition to the aluminum tape you sent (which tears very easily, and would not have been nearly enough on it's own) I used nylon filament tape to go around all edges on the back side & every few inches across the seams under the foil tape to give strength & provide anchor points along the bottom. I also used heavy shipping tape on the back side to reinforce the seams. I have 1" nylon webbing that I plan to use to sew all seams & edges with in the future, once I make sure the curtains will last.
I did take a pic of the roof under the panels, it's attached below. I'll take pics of the curtains too.
Thanks and have a great day. S.J
Although we do not warrant InfraStop® for outdoor use, this doesn’t stop our customer from using it effectively in their projects.
Folks ask us all the time how the product will perform outside. Here’s a quick post showing what’s left of one of our customer’s wood racks. Thanks S.N for the photos. S.N used InfraStop® to cover 2 cords of wood. The 24” material was the perfect width to cover just the top leaving the sides exposed. S.N grommeted holes in the InfraStop® and tied off cut sections of 2x4”s for weights.
The InfraStop has been outside continuously since 2013 and as you can see is holding up fine. Note how the grommets are rusting out already.
Thanks S.N for the pictures. We appreciate them. In the next few months we put up some more posts showing InfraStop® insulation used outside. Here's a link to the roll size S.N used for a firewood tarp.
We are always happy to show off all the ways our InfraStop® insulation can be used. Although we are primarily geared to provide InfraStop® to the construction industry, we know there are many other applications are products are used in and this project is no different.
We would like to send a special thanks to our customer S.F in the rural outskirts of Houston, Texas for sharing his project with us. S.F called in and wanted our InfraStop® for use as 5th wheel trailer insulation.
Although we insulate campers and trailers all the time, S.F’s project is unique for two reasons. The first is, as you can see from the pictures, he chose to insulate his trailer from the outside. From understanding the blistering heat in Texas and also understanding that this would be the most effective way to keep this 5th wheel cool this is what he decided to do, well before he called us.
The second reason that S.F’s project is unique is he wanted an easier install so he ordered a custom roll of 10 foot wide InfraStop® double bubble insulation. Although typically used for large metal building or pole barns, allowing us to tape the seams and create the ten foot roll in the factory was much easier than him assembling on the ground or on top of his trailer.
We would like to save thank you to S.F for sharing his project. We have reached out to him to see how the insulation is performing and will update this blog post with his comments.