How insulation works / Guides

Thermal image showing where home heat loss is occurring.
Insulation and soundproofing

How insulation works

...Insulation slows the rate of heat transfer, helping keep homes warmer in winter and cooler in summer. How well-insulated your home is will determine how comfortable it is and how much you will spend on energy for heating and cooling, and in some respects, how durable it will be. The transfer of heat (or heat loss) oc...

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

Insulating below slab-on-grade floors

...insulation to use under a slab , It is common to install as little as R5 insulation below slab floors, making that about the weakest point in a building envelope, as walls are generally at least R20 and ceilings R40. There is a misconception that heat rises (hot air rises, but heat travels evenly in all directions) so ...

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

What causes ice dams and how to fix them

...insulation. Wires to melt ice dams are a solution, but hardly an energy efficient one, make this a last resort! Fibrous insulation like cellulose and fiberglass insulation range around R3-4 per inch where spray foam is closer to R6 per inch. The high ecological cost that comes with spray foam stops us from re...

Roxul mineral wool batt insulation in LEED Homes
Insulation and soundproofing

Choosing the right insulation: the pros, cons and applications for walls, slabs & basements

...insulation first to learn the basics. Understanding the physics behind how walls work is the key to designing well-insulated, airtight and durable wall systems. Loose fill or dense-packed cellulose insulation Blowing cellulose insulation in roof © Ecohome Recycled Content : 80% to 100% Method and form...

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

How much insulation is too much in attics and walls?

...How much loose blown cellulose insulation is too much in an attic? What does ‘diminishing returns’ for insulation mean? It's as simple as this - adding one inch of insulation to a wall that has only one inch of insulation is certainly well worth the investment, in any climate. Adding one inch of insulation to a w...

How to Insulate Exterior Walls from the Outside US Canada Ecohome
Walls and Roofs

The easiest way to insulate walls from the exterior in older homes

...insulation levels and attaching exterior wall insulation successfully. Larsen trusses with cellulose or batt insulation A Larsen truss wall is one with engineered I-joists attached to the outside of a stud or brick wall, which then creates a cavity that can be filled with additional insulation . You can add batt in...

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?

...how to fix it , find more info pages about ice dams & ice damming as well as sustainable home improvement & resilient green building techniques here : How to prepare your home for winter Easy energy efficient home upgrades When to replace old windows and when to repair them How to choose the bes...

Building science for LEED v4 wall design made easy
Concept and design

Building science for LEED v4 wall design made easy - video

...insulation is installed outside of that. Stud cavities are still insulated with batts, but the majority of insulation is on the outside of the sheathing, this way the vapour control layer is sandwiched between layers of insulation where it can perform best in a wildly varying climate like we have in Canada. There a...

An attic with 'insulating paint' which doesn't insulate
Insulation and soundproofing

Does 'insulating paint' work?

...insulation, why in the world would we put any insulation in our walls at all?" - Jon Eakes Learn all about real insulation here , in the EcoHome Green Building Guides

Correctly installed Triple pane south facing windows on Ecohome's Demo House
Windows and doors

Installing doors & windows for the best performance in high efficiency homes, LEED & Passive House

...insulation (Roxul Comfortboard) makes leveling and placing windows quite easy. It is somewhat compressible and it holds its R value when compressed, and it isn't harmed by moisture the way fiberglass insulation can be. Create a durable air seal: low-expanding spray foam is commonly used around windows, which works fi...

Better Basement Design on basement walls prevents mold and midlew
Healthy indoor air quality

Basement renovations: How to prevent mold when finishing basements

...How to choose between an ERV & HRV system for basement ventilation & Mold prevention - EcoHome Guide How much insulation does a basement need - EcoHome Guide 'How to build basements that don't stink' - Dr. John Staube, University of Waterloo