FPSF / 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

The soil conditions of some building sites are not suitable for a slab-on-grade foundation with a thickened-edge footing without first beginning with extensive and costly soil remediation. Opting for a raft slab in such conditions can be a much cheaper option. A raft slab is a frost-protected shallow foundation, or ...

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

Slab on Grade foundation, detail design; the basics There are many different soil conditions and corresponding slab designs. This page is about how to build a thickened edge concrete slab on grade FPSF footing on soil with a high water table to prevent frost heave, by first installing drainage below the slab. Rela...

Naugler House: the most energy efficient Passive House design in New Brunswick
Efficient home design

New Brunswick's most energy efficient home is Passive House designed

...FPSF Frost Protected Shallow Foundation Perimeter skirt insulation detail Above grade Passive House wall assembly: Locally-milled eastern white cedar clapboard siding and stained white cedar trim. Strapping for a 1.5’’ rainscreen 16’’ Larsen truss wall system clad with 1x8 board sheathing and filled w...

Frost Heave Prevention Helps Stop Frost Heaving Breaking up Home Foundations
New foundations and slab-on-grade

What causes Frost Heave? Preventing frost heaving is down to good foundation design

...FPSF . So if a general contractor tells you that you 'must' have a basement, they are simply wrong. That’s often someone who doesn’t know how to build a FPSF slab but still wants your money, so they may try to fill your head with their own misconceptions to get the job. In most cold climates we have grown accustome...

Resilient home construction - Kenogami House of the Year
Efficient home design

"The Most Resilient House in North America"

A resilient home for Sustainability Northern Quebec isn’t a place where one might expect to look for a model of resilience . It’s bone-chilling cold in the winter with 10,450 heating degree days per year (Fahrenheit degree-days, base 65°F); there isn’t all that much sunlight in the winter, and Quebec—let alone north...

Passive Solar Home design at it's best - Kenogami House - EcoHome
Passive solar home design

Ecohome Kenogami House wins Home of the Year Award

Along with its unprecedented achievements, the Kenogami House continues to act as a laboratory for resilient, cold climate building practices. Through software energy modeling it was determined that the Kenogami House would likely require 14.6 kWh of heat per square metre per year, but its actual performance seems to ...