radiant-floors / Green Building & Sustainable Home Renovation Information & Advice

Radiant heating systems are very common in concrete floors now because they provide a very balanced and comfortable distribution of heat. Those systems are most commonly hydronic, meaning heated liquid is pumped through tubing in the concrete which then radiates that heat into the house. View the slab on grade foam for...

Here is our DIY video of  how to lay down tubing for our radiant floor in the Edelweiss House. We have a 10 zone system, allowing floor temperatures in each room to be controlled independently. HePex tubing was provided by Uponor, who also use building plans to give customers a zone plan to follow making the install q...

There is some debate in performance building circles, particularly in the Passive House community as to whether or not you can add enough insulation below a concrete floor to eliminate the need for heating it. We have been on the fence about this and leaned to both sides at different times, but it seems we have now fa...

Similar to electric baseboards, hydronic heating systems facilitate zone heating as you can keep different rooms at different temperatures. Though different from electric resistance heating, hydronic systems are ultimately still using electricity to generate heat, so all the same environmental realities apply. Heating ...

  Insulating a basement is a great idea if it wasn't insulated when built, as before we began insulating foundation walls and below slabs (see slab on grade), it was generally estimated that basement heat loss accounted for about 1/3 of the total heat loss of a house. It is likely that such an abysmal starting place ma...

Polished concrete floors are extremely durable and non-toxic; silicate-based densifiers keep them that way and make it a great start to safe indoor-air quality in a home. This is an excellent flooring option for anyone with chemical sensitivities who wants a beautiful and durable eco-friendly floor in their passive sol...

This is the fourth piece in a blog series written by Craig Anderson as he documents the design and construction of an off-grid LEED Gold passively-heated home. See post 1 of the off-grid homes blog here, the overview . or post 2 in the off-grid homes blog here covering design and construction choices. or here see post ...

Sanding and Refinishing a hardwood floor, when is the best time to do it? It may seem weird to say, but the best time to refinish a hardwood floor is before it shows severe signs of wear and tear. Hardwood floors and hardwood laminated or engineered floors are durable and can withstand a lot of traffic, but over time, ...

Is Polyurethane floor seal non-toxic? In North America, polyurethane varnish is used almost exclusively as a wood floor finish, but the majority of them are high in VOC's which are detrimental to interior air quality and health. For this reason non-toxic wood floor finishing oils are gaining in popularity. There are a ...

Remember linoleum? Meet marmoleum! Remember linoleum, that durable but boring material found on most kitchen and bathroom floors of older homes? These days, its called marmoleum and it comes in bright colors and faux finishes. Whatever name you call it, it’s generally considered both the greenest and healthiest floor c...

Why build a frost protected shallow foundation using prefabricated foam forms ? Building a frost protected shallow foundation (FPSF) is a well-proven alternative to building deeper, more-costly foundations in cold regions with seasonal ground freezing and the potential for frost heave. Traditional foundations for cold ...