Fiberglass / Guides

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

How insulation works

...fiberglass or panels of foam) have their own specific R value, but if they are spaced between wooden studs, the lower R value of the studs must be factored in when determining the true R value of a wall. Wood has an insulation value of approximately R1 per inch, which is very poor, so it brings down the overall R value...

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

Basement renovations: How to prevent mold when finishing basements

...fiberglass insulation and a vapour barrier. Notice the difference between the studs against the foundation and the studs that formed an interior division wall; the vapour barrier did not protect the exterior wall from damage and mold growth. It caused the damage by prevented the wall from drying to the interior and ins...

Dense-packed cellulose wall insulation
Wall assemblies - new construction

Dense-packed cellulose insulation wall systems

...fiberglass or mineral wool batt insulation . These weaknesses are largely baseless and dense-packed cellulose for wall cavities should be more common in Canada than it is today. The concern of cellulose in wall cavities settling is probably the biggest misconception, though it is one that originates legitimately beca...

Roxul mineral wool batt insulation in LEED Homes
Insulation and soundproofing

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

...fiberglass (as seen in the main image above). Rock wool can be more costly per batt but has a higher R value than fibreglass per inch; less health risks during installation; easier installation; it performs better for fire and sound and is less harmful to the environment. Rock wool ComfortBoard rigid board insulation c...

When should you replace windows
Windows and doors

When should you replace old windows?

...fiberglass frames - or the new generation suspended-film insulating-glass windows or glazing units .. A truly accurate assessent of whether or not you should replace windows would take a quote of the windows you want and possibly energy modeling of your existing winodws and potential new ones to see how far out your ...

Exterior damp proofing and drainage mat to protect basements from wate
Insulation and soundproofing

Best practices for basement insulation in new home construction

...fiberglass batts if desired, particularly in areas of low flood risk. Liquid applied vapour barrier primer © Benjamin Moore Interior gypsum board: Latex paint ( or vapour retarder primer ) is recomended as an interior vapour control layer below grade. It is most important to not include a poly...

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

What causes ice dams and how to fix them

...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 recommending it except for very urgent circumstances and this can be such a case. For existing homes with limited space over the top of walls, replacing a lower...

Built to ENDURE: the Net Zero Heat Kenogami House
Efficient home design

The Kenogami House: designed to ENDURE

...fiberglass windows 0.5 ACH (Air changes per hour) at 50 PA Energy Recovery Ventilator rated at 94% efficiency 225 kg per sq.ft. of thermal mass to store heat and balance interior temperatures Alvia exterior automated blinds Non-toxic environment: It has been estimated that in North...

Vinyl record album
Healthy indoor air quality

Keep vinyl out of your home (albums excluded of course)

...Fiberglass window frames Wooden baby toys and chairs There are a lot of toxic materials in homes and they have a cumulative effect on indoor air quality . We aren't advocating stripping every home to the studs and starting over, but as you make repairs and changes or start a new building project, there are a lot ...

Choosing a building envelope
Wall assemblies - new construction

Choosing a building envelope - starting with the perfect wall

...fiberglass, and they are much easier to cut and install properly. To discover the appropriate use of insulation, see our guide to insulation, here . Prefab homes: Prefab home construction image via Wikimedia In years past Pre-fab homes were generally just 2x6 framing, and weren't known for high performance, b...

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

...fiberglass insulation can be. Create a durable air seal: low-expanding spray foam is commonly used around windows, which works fine for its insulation value but it is not flexible enough to withstand the normal shifting and still provide an air seal. Adding a bead of acoustic seal, caulking or taping window frames to...