How To Insulate Concrete Floor For Radiant Heat

Radiant floor heating concrete slab insulation.

How to insulate concrete floor for radiant heat.

Q how much insulation is necessary under a typical radiant slab. How does radiant heat work. Due to it s density and low conductivity concrete retains heat very well. Cerazorb is a 3 16 inch 5 mm thin synthetic cork underlayment that is highly recommended when installing a floor heating system over an existing concrete slab or under tile and stone.

Radiant heat insulation is installed to prevent heat loss from a pex radiant floor heating system most commonly pex embedded in concrete slab or stapled underneath the plywood subfloor. Javascript seems to be disabled in your browser. Here we look at why insulating concrete floors is so important and offer tips on choosing and installing concrete floor insulation. Different insulation types help to minimize heat loss from convection air circulation conduction direct contact or radiation energy waves modes of.

There s two basic types of concrete floor heating hydronic and electric. Need insulation for under concrete slabs slabs with radiant heat. The heat is made possible in two ways. Instead of blowing hot air through a vent or pumping hot water to a baseboard radiator along the wall radiant heat warms up the entire floor.

Insulationstop is the best source for top quality products at the best price. A john siegenthaler a consulting engineer who specializes in hydronic heating system design responds. Either through pipes carrying hot water embedded in or directly below the floor or via electric mats in or below the floor. Downward heat loss from a radiant slab should not exceed 10 percent of upward heat output a ratio derived from european installation standards for floor heating systems it s possible to calculate the r value needed to meet.