Thermalboard is the Retrofit Radiant Floor Heating Solution
Thermalboard features a low profile, a high efficiency aluminum surface and sustainable substrate. The standard panel’s 5/8” low profile can be accommodated in most existing structures for retrofit and remodeling; it is lightweight and easy to cut and is effective for smaller jobs.
Thermalboard is easy to install by any general contractor following our panel layout and step by step installation manual. It also provides a very quick responding and efficient solution for comfort and lowers energy bills.
Advantages
Cost Effective
Thermalboard delivers high performance at a competitive cost, especially when compared to gypsum cement or structural plywood radiant systems. The minimal labor and equipment required help reduce the total project budget while maintaining premium comfort levels.
Low Profile (5/8″)
Its slim 5/8″ thickness makes it an ideal solution for retrofit projects. This low-profile radiant heating panel integrates easily into existing floor assemblies without causing changes to thresholds or door swing issues.
Easy Installation
Designed for simplicity, Thermalboard panels come pre-engineered for quick layout and assembly. Standard tools are sufficient for cutting and fitting, making it DIY-friendly and saving professional installers valuable time on-site.
Factory Direct
By purchasing directly from the manufacturer, you reduce delays, avoid middlemen, and ensure product authenticity. Our factory-direct radiant heating panels come with full support, from CAD layouts to step-by-step manuals.
Retrofit & Remodel Friendly
Thermalboard is a top choice for remodelers. It integrates seamlessly with most existing structures, allowing radiant heat upgrades without major tear-outs or construction. Especially suited for remodel radiant heat flooring projects in kitchens, bathrooms, or full-home makeovers.
High Performance
With an aluminum surface that conducts heat far better than wood or gypsum, Thermalboard delivers superior heat transfer, energy savings, and a more comfortable living space. Fast response times ensure your space heats quickly and evenly.
Layout Design
We provide CAD-based layout designs tailored to your space and project goals. Each layout includes tubing paths, manifold locations, and panel arrangements, ensuring easy, foolproof installation.
Sustainable
Thermalboard is made using 92% pre-consumer recycled content, contains zero formaldehyde, and qualifies for LEED® v4 credits. A smart choice for environmentally responsible builders and homeowners looking to reduce carbon impact.
Light Weight
Its lightweight construction makes it easy to handle, transport, and install—even on upper floors. This cuts down labor, reduces strain, and makes it possible to do solo installations.
Save Hours With Our Design and Layout Services.
Our layout service includes the location of RadiantBoard panels, tubing and manifold locations. A CAD layout is highly recommended to ease installation and save hours of labor for inexperienced installers.
Common Methods for Retrofit Radiant Floor Heating and Remodeling
Radiant heat remodels can go into a new concrete floor addition, under an existing subfloor or in a thermal panel, like Thermalboard, on top of a subfloor or existing concrete slab.
While underfloor staple up radiant systems can resolve issues with existing flooring goods, underfloor systems are far less efficient, respond more slowly and are time consuming to install.
Radiant Heat Retrofit of Existing Hydronic System
If you have an existing baseboard or other type of system, Thermalboard can be an excellent upgrade solution. Just keep in mind that if you have an existing high temperature radiator or baseboard system, a mixing valve must be installed to lower the temperature entering the Thermalboard radiant section of your system.
Ideal Retrofit Applications for Thermalboard
Thermalboard shines in a variety of retrofit situations, offering flexibility, performance, and ease of installation in spaces where traditional radiant systems may not be feasible.
- Older Homes with Limited Floor Height
Older homes often feature unique architectural elements and fixed floor levels, making major floor height changes difficult or undesirable. Thermalboard’s low 5/8” profile allows it to be installed without the need to cut down doors, adjust baseboards, or alter transitions to other rooms. This makes it ideal for preserving the historical integrity of older homes while upgrading them with modern comfort. - Basement Finishing Projects
Basements typically have concrete slabs that are cold and uncomfortable underfoot. Thermalboard installs directly over concrete without requiring thick mud beds or additional structural layers. It not only helps regulate floor temperature but also creates a warm, inviting environment that transforms basements into livable, cozy spaces, perfect for home offices, guest suites, or entertainment areas. - Kitchen and Bathroom Renovations
Kitchens and bathrooms are high-traffic areas where comfort and quick temperature response matter most. Thermalboard’s aluminum surface provides fast and even heat transfer, ensuring the space warms up quickly when needed. It integrates well beneath tile, vinyl, and engineered hardwood, making it an excellent choice for small-area renovations that demand high performance. - ADU or Garage Conversions
When converting garages or building Accessory Dwelling Units (ADUs), you often work with minimal structural depth and unconditioned concrete floors. Thermalboard offers a practical radiant solution that doesn’t require thick pours or additional subfloor systems. It installs easily over existing surfaces and helps regulate temperature in these repurposed areas year-round, improving comfort and energy efficiency.
Step by Step Installation Guide
Follow the guide for a quick installation overview of Thermalboard. For more detailed instructions you can download our free Installation Manual here.
See the installation of a Thermalboard licensed product in a major remodel.
Why Choose Thermalboard Over Traditional Systems?
Thermalboard stands out from traditional radiant systems like gypcrete and structural plywood panels by offering superior efficiency, convenience, and adaptability. Here’s a closer look at its advantages:
- No Curing Time
Unlike gypcrete systems, which require several days of curing before floor coverings can be installed, Thermalboard is dry-installed and ready for immediate use. This allows faster project timelines and reduced labor costs, flooring can be placed the same day the radiant system is installed. - No Added Structural Load
Panels are lightweight, which means they won’t stress existing floor joists or require reinforcement like heavier concrete-based systems. This is especially beneficial for second-story installations or retrofitting older homes with limited load capacity. - Compatible with Multiple Floor Coverings
Whether you’re planning to install hardwood, tile, luxury vinyl tile (LVT), engineered wood, or even carpet, Thermalboard offers consistent performance. The even heat distribution provided by its aluminum top layer ensures compatibility and comfort regardless of the flooring material. - Precision Panel Layouts
Thermalboard includes custom CAD-based panel layouts, making installation easier and more efficient. These layouts include tubing paths, panel placements, and manifold locations, minimizing waste, preventing mistakes, and reducing time on-site.
Frequently Asked Questions
Can this system be used in every room during a remodel?
Yes! Its low profile and lightweight design make it ideal for any room, including basements, bathrooms, kitchens, attics, and even upper floors, without requiring structural changes. Perfect for whole-home remodels and focused upgrades.
Is this system energy efficient enough for older homes?
Yes, this system is designed to enhance energy efficiency, making it ideal for retrofitting older homes. It improves comfort and reduces heating costs in homes with less efficient systems.
How soon after installing can I place flooring over it during a renovation?
Once the system is installed, you can place the flooring after the recommended curing time, which is usually 24-48 hours depending on the installation conditions.
Does the system require special tools or advanced skills for retrofitting?
No, the system is designed for easy installation with minimal tools. It can be installed by professionals or DIYers with basic skills, making it perfect for retrofits.
Can this system be installed over old subfloors or concrete?
Yes, it can be installed over old subfloors or concrete. Its versatile design allows for installation in various conditions, ensuring long-lasting, efficient performance.
Is this system light enough for second stories or retrofits?
Yes, the system is lightweight and can be installed on second stories or during retrofits without adding unnecessary weight or structural concerns.
Is this system compatible with heat pumps for remodels?
Yes, it works perfectly with heat pumps, making it a great choice for energy-efficient remodels that incorporate hydronic systems or radiant heat pumps.
Will this system interfere with door thresholds or ceiling heights in a retrofit?
No, the low-profile design ensures that it does not interfere with door thresholds or ceiling heights, even during retrofits, ensuring a seamless installation.
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