
RADIANT X
RADIANT BARRIER
Reduce radiant heat transfer and help improve attic performance with Radiant X spray-on radiant barrier technology.
WHY RADIANT BARRIER?
Radiant heat is one of the largest contributors to attic heat buildup. As the sun heats the roof surface, that energy radiates into the attic, increasing attic temperatures and forcing HVAC systems to work harder.
Radiant X is a spray-on radiant barrier coating applied directly to the underside of the roof decking. By reflecting up to 81% of radiant heat before it enters the attic space, Radiant X helps reduce heat gain where it starts.
Unlike traditional insulation, which slows heat after it enters the attic, radiant barriers address radiant heat at the source. The result is a cooler attic, reduced HVAC strain, and improved overall energy efficiency.
Key Benefits
• Blocks up to 81% of radiant heat transfer
• Helps reduce attic temperatures
• Reduces HVAC workload
• Supports improved energy efficiency
• Works alongside existing insulation systems
• Easy spray-on application

WHY CONTRACTORS CHOOSE RADIANT X
MORE REVENUE
Radiant X gives contractors an additional service offering that can be sold alongside insulation, solar attic fans, roof cleaning, roof rejuvenation, and other energy-efficiency solutions. Expand project value without adding complex installation requirements.
SIMPLE APPLICATION
Radiant X is applied directly to the underside of the roof decking using standard spray equipment. The straightforward installation process allows contractors to complete projects efficiently while minimizing labor time and costs.
HIGH DEMAND
Homeowners are increasingly looking for ways to improve comfort, reduce energy consumption, and lower cooling costs. Radiant X helps contractors offer a proven attic-performance solution that addresses these common concerns.
CUSTOMER VALUE
By helping reduce attic temperatures & HVAC workload, Radiant X delivers measurable benefits homeowners can understand. Contractors can provide a solution that improves performance while building customer trust & satisfaction.
BENEFITS OF RADIANT X
Blocks Radiant Heat Transfer
Radiant X helps reduce the amount of radiant heat entering the attic by reflecting up to 81% of radiant heat away from the attic space. By addressing heat at the roof deck, Radiant X helps limit attic heat buildup before it reaches insulation, ductwork, and living areas.
Reduce Attic Temperatures
Attic temperatures can climb well above outdoor temperatures during the summer months. Radiant X helps reduce excessive attic heat, creating a cooler attic environment and improving overall attic performance throughout the year.
Lower HVAC Workload
When attic temperatures are reduced, HVAC systems and attic ductwork operate under less thermal stress. This can help improve cooling efficiency, reduce system runtime, and support long-term HVAC performance.
Improve Energy Efficiency
By reducing heat gain in the attic, Radiant X helps improve the effectiveness of existing insulation systems. Many homeowners experience greater comfort and improved energy efficiency as part of a comprehensive attic improvement strategy.
Works with Existing Insulation
Radiant X is not a replacement for insulation—it complements it. Traditional insulation slows conductive heat transfer while Radiant X addresses radiant heat, creating a more complete thermal protection system.
Improve Indoor Comfort
Excessive attic heat can transfer into living spaces, making rooms harder to cool and creating uneven temperatures throughout the home. Radiant X helps reduce this heat transfer, supporting more comfortable indoor conditions.
Fast and Efficient Installation
Radiant X is applied directly to the underside of the roof decking using professional spray equipment. The application process is straightforward, allowing contractors to complete installations efficiently while adding value to existing attic improvement projects.
Long-Term Attic Performance
Once applied, Radiant X becomes part of the attic system, continuously helping reduce radiant heat gain year after year. It works silently in the background to support lower attic temperatures, improved efficiency, and enhanced overall home performance.
TOP 5 QUESTIONS ABOUT
RADIANT X RADIANT BARRIER
1. HOW DO I APPLY RADIANT X?
A. Radiant X is applied using a traditional airless sprayer with a 619 or 621 tip
2. HOW MANY SQUARE FEET DOES A 5 GALLON BUCKET COVER?
A. Radiant X comes a s 2-part kit. Each kit covers approximately 1,500 square feet.
3. DOES RADIANT X HAVE A STRONG ODOR?
A. No. Radiant X has a slight odor when first applied but the odor dissipates in approximately an hour.
4. WHERE IS RADIANT X APPLIED?
A. Radiant X is spray applied to the underside of the roof decking. It is not necessary to spray the roof rafters.
5. ARE THERE INSTALLATION TRAINING AND SALES MATERIALS AVAILABLE?
A. Yes. The Attic Depot offers in-person training and have great sales tools and brochures available. Visit Attic Depot World to learn more.
RADIANT X EXPLAINER VIDEO
Why Radiant X Matters
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Reflects Up to 81% of Radiant Heat
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Helps Lower Attic Temperatures
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Reduces Heat Transfer Into Living Space
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Helps HVAC Systems Efficiency
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Helps Improve Energy Efficiency
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Fast Professional Installation
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Ideal for New and Existing Homes
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Whether you're a contractor looking to improve a home's energy performance or a homeowner wanting a cooler, more comfortable home, this video explains how Radiant X helps reduce radiant heat gain and complements traditional attic insulation for better overall efficiency.
Did You Know?
During the summer, radiant heat from the sun can account for a significant portion of the heat entering an attic. Radiant X is designed to reflect up to 81% of radiant heat, helping keep attic temperatures lower and reducing the amount of heat that reaches the living space.
RADIANT X + INSULATION = BETTER TOGETHER
Many contractors mistakenly believe they must choose between a radiant barrier and traditional insulation. In reality, the two products perform different functions and are most effective when used together as part of a complete attic performance system.
Radiant X works at the roof deck. Applied directly to the underside of the roof decking, Radiant X helps reflect up to 81% of radiant heat before it enters the attic space. By reducing heat gain at the source, attic temperatures can remain lower throughout the day.
Insulation works at the attic floor. Traditional insulation slows conductive heat transfer between the attic and the living space below, helping maintain more consistent indoor temperatures and reducing the workload placed on HVAC equipment.
Because each product addresses a different form of heat transfer, combining the two creates a more effective thermal barrier than either product alone.
For contractors, this creates an opportunity to offer homeowners a more complete energy-efficiency solution. Radiant X and insulation work together to improve comfort, support HVAC efficiency, reduce attic temperatures, and help maximize the performance of the home's thermal envelope.
Key Benefits of Combining
Radiant X and Insulation
• Addresses both radiant and conductive heat transfer
• Helps reduce attic temperatures
• Improves insulation effectiveness
• Reduces HVAC strain and cooling demand
• Supports greater indoor comfort year-round
• Creates a more complete attic performance system
• Helps improve overall energy efficiency
• Delivers additional value to homeowners without replacing existing insulation

HOW RADIANT X WORKS

STEP 1: SPRAY APPLICATION
Radiant X is sprayed directly onto the underside of the roof decking, creating a reflective barrier where radiant heat first enters the attic

STEP 2: HEAT REACHES ROOF
As the sun heats the roof surface, Radiant X reflects a significant portion of radiant heat away from the attic before it can build up inside the home.

STEP 3: RADIANT HEAT REFLECTED
With less radiant heat entering the attic, temperatures remain lower throughout the day, helping create a more efficient attic environment.

STEP 4: IMPROVE OVERALL PERFORMANCE
Lower attic temperatures help reduce HVAC workload, improve comfort, and support the performance of existing insulation systems.
