Soils / Guides

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

...soils, low-bearing capacity, high water tables, etc.) may require significant investment in drainage, soil replacement and compaction before an engineer will approve a project. The photos below are images of drainage measures that were required to support a thickened-edge footing slab-on-grade floor on a site with a ...

Lasagna Gardening - How to Build an Easy Vegetable Garden
Food production

Lasagna gardening - the easiest vegetable garden at home?

...soils and sandy soils Lasagna gardens are low maintenance – no-till and easy to do by following the simple instructions below Lasagna gardening gives quick results - prepare a bed in the early spring and have fresh vegetables all summer Secondly, the cons of lasagna gardening: The carbon sources in Lasagna ...

Crawl Spaces or Slab on Grade Foundations?
Crawl spaces

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

...soils or high water tables instead of a slab with a thickened edge footing. A raft slab distributes the weight evenly over the whole surface instead of resting on an edge-loaded footing, so the risk of differential settlement or shifting is greatly reduced. A raft slab requires almost no excavation so high water tabl...

Crawl Spaces or Slab on Grade Foundations?
Foundations and Basements

Slab on grade or crawlspaces, which is better?

...soils or high water tables instead of a slab with a thickened edge footing. A raft slab distributes the weight evenly over the whole surface instead of resting on an edge-loaded footing, so the risk of differential settlement or shifting is greatly reduced. A raft slab requires almost no excavation so high water tabl...

Radiant floor tube installation
Delivery: radiant, forced-air and decentralized

DIY radiant floor tubing installation video

...soils , and anything else about sustainable green home construction in Ecohome's green building guide pages.

The Pros & Cons of Lasagna Gardening for Growing Food
Food production

Lasagna Gardening: the pros & cons of a lasagna garden

...soils. Another ‘pro’ for lasagna gardening is that the process of building on grass improves the soil quality of your garden, and you can build up additional levels as needed. If you are building in an area of poor quality or clay soils, a lasagne garden construction will ensure a fertile top layer of free-draining s...

Solar Radiant Heated Floor Slab Kit
Delivery: radiant, forced-air and decentralized

Solar heated radiant floor with radiant heated hot water for a site with problem soil - expansive clay

...soils and air-heated radiant floors , to see if high efficiency solar air panels could feed air directly into their existing in-floor duct work. They welcomed the challenge and engineered the system that will be the main heat source of our new (as close as we can get it to ) Zero Energy home . Needless to say that we w...

LEED Homes

The 19 LEED for Homes Prerequisites

...soils in sloped areas are disturbed during construction use tiers, erosion blankets, compost blankets, filter socks, or some comparable approach to prevent soil runoff. 2.1 No invasive plants: Introduce no invasive plant species into the landscape. To find out more about invasive plant species, consult the Canadi...

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

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

...soils see our pages on raft slabs and building on problem soils. 1. Creating a level building surface After the land was cleared, compactable fill was brought in to bring the site to a workable level. The house sits at about grade at the north side, but needed about 3 feet of fill at the south edge to level the bui...

Step by step guide for slab-on-grade home construction
Slab on Grade

Slab-on-grade construction: the ecoHOME A to Z Slab building guide

...soils and high water tables EXCAVATION for Slab on Grade foundation: Hire an engineer to establish how to seat the footing for the foundations. Soil tests will often be ordered to determine how to proceed. On expansive clay, unknown soils or infill, engineers will sometimes insist on the construction of a compa...

tidal power generators
Renewable energy

Tidal generators offer a predictable supply of renewable energy

...soils. Greenhouse gas emissions as methane is released from rotting vegetation in reservoirs. As methane rises to the surface, oxidization causes it to change into carbon dioxide, a less harmful gas. So rather than at the surface of reservoirs, 95% of the problem is at the dam itself where methane-rich deep water...