Frost wall / 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

...wall, and finally the slab floor. Rarely are footings insulated, and depending on how the walls are insulated, the result can be a thermal bridge between the footing and walls or floor. This brings unwanted heat loss, as well as a greater risk of condensation forming on those colder portions of concrete. Alternativel...

Frost in Attics: What causes Attic Ice? How to Fix it?
Roof assemblies - renovation

Why is there frost in my attic? Is ice in roofs a problem & How do I stop it?

...Frost and ice forms in attics when warm, humid air accumulates and condenses on the underside of your roof sheathing. Depending on the temperature, and the insolation (ie. can sun get to the roof) you will have either frost or water collecting. A little bit of frost forming is not unusual after really low nighttime tem...

Insulating a Slab on grade for a Passive Solar LEED Home with Rockwool © Ecohome
Insulation and soundproofing

Insulating below slab-on-grade floors

...frost heave, using dirt to insulate. With a slab-on-grade, the difference is you use 'insulation' to insulate, rather than dirt. This effectively moves the frost line from 4 feet down to just 6 inches, problem solved. Building above grade on a slab can be a much cheaper starting place than a basement, and leads to a ...

Slab-on-grade construction technical guide
Slab on Grade

Slab-on-grade technical guide

...wall with much better insulation. By building a slab-on-grade home, you are choosing to substitute foundation walls with above-ground walls. In other words, you are replacing concrete walls with a much more affordable and energy efficient wall assembly. This is why Slab-on-Grade foundations are frequently chosen fo...

Ice dams on roofs & how to fix them
Roof assemblies - renovation

What causes ice dams and how to fix them

...wall where the roof and wall meet. The inside of kitchen cupboards can be a tell-tale sign as well – since the air in kitchens is often more humid and cupboards are closed with little air movement, condensation can form on the walls in the back of cupboards. Whether or not you have indentified an ice damming problem,...

How to Vent Roofs - the Methods, Vent Types, Fans
Walls and Roofs

Why Roofs need to be ventilated and how to ventilate a roof properly

...wall assembly and meets a cold surface; this causes frost and ice to form. In spring when this ice melts, it will seem like you have a roof leak when in fact there is none (spoiler alert – if your roof ‘leak’ happens on a sunny day, it’s not a ‘leak’). All these effects are why air barriers in homes are so important fo...

Crawl Spaces or Slab on Grade Foundations?
Crawl spaces

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

...frost-protection skirt will outlast a house built on a crawlspace; full stop. • EPS foam can be used as a vapour barrier when installed with multiple layers and offset joints as it will not absorb moisture from the ground. • Building on high ground eliminates any risk of flooding. • A slab on grade with a frost-p...

Crawl Spaces or Slab on Grade Foundations?
Foundations and Basements

Slab on grade or crawlspaces, which is better?

...frost-protection skirt will outlast a house built on a crawlspace; full stop. • EPS foam can be used as a vapour barrier when installed with multiple layers and offset joints as it will not absorb moisture from the ground. • Building on high ground eliminates any risk of flooding. • A slab on grade with a frost-p...

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

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

...walls would bear, we installed EPS foam. Slab floors are often built in a way that requires footings and sometimes frost walls to be poured first, with the interior slab floor being poured later once the footing has set. Insulation underneath the footing is often omitted with this technique, which leads to thermal br...

Heat Recovery Ventilation - Lunos video
HRV and ERV

Lunos ductless air exchanger

...walls, making it the ideal compact HRV unit for reno's and retrofitting . Consequently, there is no need for ductwork or reserving space in your mechanical room for an air change system. Wall sleeve for Lunos © Ecohome Wall sleeve for Lunos © Ecohome These systems are a direct interface between the insi...

Basement wall insulation
Insulation and soundproofing

Properly insulating basements and concrete slab floors

...walls also varies between below-grade and the parts above. Over a heating season, there will be much more heat loss through above-grade walls than those below. Therefore, with one wall and two rates of heat transfer, this leaves the dilemma of insulating more than you need below, or less than you need above. There is...