Concrete / Guides

Patio stones with very low greenhouse gas emissions
Concrete and masonry

Reducing emissions with CO² cured-concrete

...concrete also hardens in less than 24 hours compared to conventional concrete, which takes several days to sufficiently harden. Low-emission concrete blocks © Solidia Technologies® The end result is a 70% reduction in the total ecological footprint of conventional concrete, including 6...

Polished concrete floors and counters
Paints, finishes and natural coatings

Finishing concrete floors with silicate densifiers

...concrete: Terrazzo floor © Alain Hamel When you drop something heavy on a concrete floor or countertop, the action that you can't see happening in that split second is that the concrete actually compresses and then springs back, often releasing a chip. Silicate densifiers will make concrete stronger, and add ...

Low Carbon Concrete - Lowering the Carbon Footprint of Eco Homes
Concrete and masonry

Low-carbon concrete by CarbonCure Canada - lowering the carbon footprint of buildings

...concrete the solution we've been waiting for to reduce the carbon output from home building? Concrete in homes = high carbon footprint Have you seen a house without any concrete in it? it’s not impossible to build a home without concrete as you could rest a home on screw piles, but you really don’t see that very of...

Concrete, wood and steel structures compared - Timber Frame wins!
Materials and resources

How wood structures compare to steel and concrete for Carbon Footprint

...Concrete, Straw Bale? Sources: Sustainability and life cycle analysis of residential structures Timber vs concrete and steel structures Building Green: environmental product declaration (EPD) of wood, concrete and steel Green Building Advisor: wood as replacement for concrete and steel in skyscrapers

Basement wall insulation
Insulation and soundproofing

Properly insulating basements and concrete slab floors

...concrete floor in a typical cold climate, either in Canada or Northern US; first un-insulated, the second insulated to meet Building Code (R10) and the third insulated to R20, the minimum we would recommend in Canadian and US cold climate zones, for comfort and a good return on investment. Modelled using a 4-in...

Gabion walls can be used for building homes
Concrete and masonry

Gabion Walls - what is a gabion cage & how to build with them?

...concrete: carbon emissions The gabion wall has many advantages both economically and ecologically. From an environmental aspect in terms of reducing the impact of the built environment on climate change , avoiding concrete is always a good thing. Unless you choose a carbon storage concrete option with a lowered carbo...

How to Fasten Cement Board Facing to slab on grade insulation
Slab on Grade

Finishing the exterior of an insulated slab-on-grade floor

...concrete. It did hold as planned, though there is more play in it than we ideally would have liked and if we were to do it again we would increase the amount of fasteners. Like many things, this did work but we found it to be labour intensive compared to finishing an EPS foam slab exterior. To learn more about Slab o...

Radon and vapour barrier below slab on grade floor
Radon in Homes - Mitigation

Vapour / radon barriers below slab floors

...concrete and disbursing it into homes, also to create a radon barrier. Radon gas occurs naturally in the soil, a result of decomposing uranium in the ground. So it's everywhere, but more intense in some locations than others. A passive radon stack are also a prerequisite under the LEED for Homes program. Radon gas is...

Slab on grade for a Passive Solar LEED Home insulated by Rockwool © Ecohome
Insulation and soundproofing

Insulating below slab-on-grade floors

Insulating below slab-on-grade foundations Why insulate under a slab on grade foundation? For comfort, and to save money, that's why! In many areas Building Code has fallen behind common sense on what specification of insulation to use under a slab , It is common to install as little as R5 insulation below slab floo...

Slab-on-grade construction technical guide
Slab on Grade

Slab-on-grade technical guide

...Concrete is very expensive to purchase and extremely energy intensive during manufacturing. The process of building a basement requires 3 costly visits from a team of concrete trucks; once to pour a footing, again to pour walls, and a third time to pour a basement floor. For every ton of concrete produced, one ton of g...

Crawl Spaces or Slab on Grade Foundations?
Foundations and Basements

Slab on grade or crawlspaces, which is better?

...concrete into it. So, there are more materials, more stages of construction and more labour with a crawlspace than a slab. Passive House slab on grade form kit ready to pour concrete © Ecohome The drawbacks of building on a slab on grade: Building your home on a slab on grade means you will have no basement...