Insulating basement floors / Guides

Earthship in Taos, New Mexico, shame they don't work in cold climates
Concept and design

Do Earthships work in cold climates?

...floors) and includes thermal mass inside of the building envelope. I'm not here to criticize the fossil fuel use or foam insulation, but it's no more a 'natural phenomenon' or 'living breathing organism' than a normal basement with exterior foam insulation . Unfortunately for many Earthship owners around the world,...

Zero Carbon Homes - The S1600 Prefab Eco Home is affordably Close
Planning and Design

Zero Carbon Homes - The S1600 Prefab Eco Home gets affordably Close

...floors where heated liquid is passed through tubing in the concrete, this is an air-heated radiant floor which has 4-inch tubes that circulate hot air to warm the concrete. Solar air-heated radiant floor insulating forms details Important note – this is not a feature that is offered with the S1600. The first ...

Condensation on windows in our homes - why is it there? - how to stop it?
Walls and Roofs

Condensation on windows is a pain but is it a problem & how to stop it?

...basements or crawlspaces – When a home is built on a crawlspace or basement this can often be the cause of humidity in the home – even when the home is newer many areas building Code’s lock humidity in finished basement walls for years, causing damp and mold issues. Many basements were built with inadequate insulation,...

Crawl Spaces or Slab on Grade Foundations?
Crawl spaces

Should I Build on a Slab on Grade Foundation or a Crawl Space?

...basement, so you get most of the cost, all the durability issues and potential hassles of a basement, PLUS a sore back and bruises on your head if you try to make any functional use of it. A crawlspace requires a concrete footing, then a short foundation wall, all the insulation on the walls and floor (or crawl-space c...

Prefab frost-protected shallow foundation insulated form kit
Slab on Grade

Raft slabs - How to build Insulated Frost Protected shallow foundations (FPSF) on problem soils

...basement can be constructed by beginning with an insulated raft slab, followed by an ICF foundation wall. This provides a continuous layer of insulation separating the concrete from the ground. The result is a very comfortable and energy efficient basement, with no thermal bridging and reduced risk of mold. Basemen...

Insulated Radiant Floor ICF Foam Forms Heated with Air
Delivery: radiant, forced-air and decentralized

Air-heated radiant floor slab foam forming systems

...floors with electric wires and this is often the most affordable after-market solution for happier feet. Even in new homes with forced-air heating, electrically-heated mats are sometimes installed below the tiles in bathroom floors for added comfort. What you don’t see a lot of, are floors heated with air. ...

Slab-on-grade for Ecohome's upcoming video building guide
Slab on Grade

how to build a slab-on-grade on standard soil

...floors, in this case we used Rockwool mineral fiber insulation ( formerly known as Roxul) . Note: Engineers at Rockwool could not confirm with us that their product had the compressive strength to carry the load under the footing, so where the weight of the walls would bear, we installed EPS foam. Slab floors are o...

Passively-heated off-grid LEED house in Low, Quebec
Off-grid and Net-Zero Housing

Off-grid living blog: a firsthand account of building and living in a remote area

...basement concrete slab is 4" inches of EPS rigid foam giving R-16. A couple other finishing details really help to reduce the basement heating loads. First, the basement concrete slab is actually encased on 3 sides by foam, coming down from the walls, and then with the foam underneath it essentially looks like a foam '...

How much is Too Much Insulation in my Attic or Walls?
Insulation and soundproofing

How much insulation is too much in attics and walls?

...insulating homes and start planning to add heat, or risk spending money and embodied energy in materials that simply will not be recouped in a reasonable time period or over the life of the house. That is to say, there is a balancing point where generating heat is actually better for the environment than buying and i...