Roof insulation / Guides

Mineral wool insulation in roof by Rockwool - LEED Platinum V4
Roof assemblies - new construction

Mineral wool insulation in roofs by Rockwool

...roof insulation used to best effect: Watch more Green Building Video Guides on the EcoHome YouTube Channel here The Ecohome's Edelweiss House LEED Platinum certified V4 roof is a 2/12 pitch insulated to R95 with Rockwool (formerly Roxul) mineral wool batts. R95 far exceeds the most rigorous Canadian building code...

Living green roof installation on the Edelwiess house
Roof coverings

DIY green roof installation video

...roof assembly is that it manages moisture properly. Read here about why roofs need to be ventilated and how to ventilate a roof properly. Watch the video covering Green Roof insulation with mineral wool here

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

What causes ice dams and how to fix them

...roofs, letting water penetrate and cause damage to the interior of walls and roofs. When snow melts on a roof it runs down until it meets the unheated bottom edge of a roof and then freezes. This chunk of ice is called an ice dam, and it can cause water to backup beneath shingles and Ice dams cause damage to walls and ...

R values and insulation performance
Efficient home design

Understanding thermal performance

...insulation combinations to minimize building energy consumption, though increased insulation will probably be the best option in most cases. The Big Picture: Energy While insulation R-values are important, what really matters is energy consumption. To assess the impact of different roof insulation types on whole bu...

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

...roof in a hot climate is the best plan. What’s better - a ventilated roof or unventilated roof? This is as good a time as any to tell you where we stand, which is that we much prefer ventilated roofs over unventilated roofs for durability and resilience. An un-ventilated roof should be done either with perfectly ...

Metal roof with solar panels
Roof coverings

How to choose roofing materials

...roofs- intensive and extensive: Green roof © Ecohome An intensive green roof, also known as a ‘rooftop garden’ refers to planting areas that have a depth of 6 inches and up. Deeper soil supports a greater variety of plants such as vegetables, shrubs and even small trees. Extensive roofs are designed primarily...

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?

...roof problem like a leak, that maybe their roof covering has been damaged over winter, but it probably isn't if the problem wasn't there before. Ironically, in our experience, ice often forms in the attic after DIY roof insulation projects where new insulation covers up ventilation access. If you discover you have ice ...

Passive House wall system ; Larsen Trusses & dense-packed cellulose insulation
Wall assemblies - new construction

Larsen truss wall systems with double-stud construction & extra insulation for new homes & energy efficient home renovation

...roof to create a seamless envelope of exterior insulation (and therefore cathedral ceiling) covering all of the walls and roof. Larsen trusses are not structural or load bearing, ; their intention is simply to facilitate a thicker wall assembly for added insulation, and to place the vapor barrier at the 2/3rds point ...

Balanced insulation levels in a green home
Efficient home design

Insulation in Green Home Building, a balanced approach to putting it where it does the most good

...insulation level slightly and applying that money to a much higher quality window. In Conclusion, How much Insulation is best? Balancing insulation is about respecting the laws of diminishing returns. Example - If I have a wall with just 2 inches of insulation and I add another 2 inches, I will certainly get my mon...

Installing foam panel insulation, which is best?
Insulation and soundproofing

Rigid insulation panels: which ones to use for different applications

...Insulation Products, Like Hemp Insulation panels or Batt Insulation or mineral wool - demonstrated here in roof insulation . Polyisocyanurate Foam Panels: PIR, polyiso, or ISO, is a thermoset plastic product typically produced as a foam and used as rigid thermal insulation panel - most often with aluminum foil faci...

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...