Warm weather provides the perfect time to begin preparing the home for the cooler seasons. Radiant heat subflooring keeps you warm when outdoor temperatures are cold. After installing this flooring, you can turn down your central heating system and let the flooring do some of the work. This project is not inexpensive but will end up paying for itself over the long term.
You will need:
• Radiant flooring
• 100-pound roller
• Circular saw
• Hand saw
• Plunge router
• Alignment tool
• Angle grinder
• Forstner bit
• 3-inch framing nails
• Framing nailer
• Screw gun
• Construction adhesive
• Chalk line
• Chalk gun
• Tape measure
• Safety glasses
Step 1: Create a reference line for your first radiant flooring panel using the chalk, chalk gun, and tape measure.
Step 2: Cover the subfloor with construction adhesive. Put the first radiant flooring panel in place, using the plan from the panel manufacturer. Secure the panel to the floor joists with the nailer and framing nails.
Step 3: Use the alignment tool and hammer to adjust panels so the subfloor channels align perfectly.
Step 4: Stagger joints during subfloor installation. Cut panels in half with your circular saw and use your handsaw to make small cuts.
Step 5: Some panels will need to be tied together to accept the radiant floor tubing. Align the jig on adjacent panels, temporarily securing it with the screws. Use your plunge router to notch out a channel.
Step 6: Tubing can become damaged by metal shards so debur each channel with your angle grinder.
Step 7: Make a hole for the panel tubing by drilling down into the subfloor so the tubing can run into your basement. Use the unibit to drill through metal, following it with the forstner bit that drills through plywood.
Step 8: Place the tubing into the hole created in Step 7. Run this to your boiler, allowing slack of about 5 feet.
Step 9: Follow the panel manufacturer guidelines to run tubing into the panel channels. Use the roller to press the tubing into the channels.