Inside the Envelope

January 28, 2015

How Long do Buildings Last?

We have tracked 1,651 buildings over a 20+ year period and have identified five life...

From Building Rehabilitation to Deep Energy Retrofit: An Opportunity for Rental Apartments

There is a ‘glass half-full’ perspective worth considering: upgrades that increase the market value and...

January 7, 2015

Specifying with Class – Four NAFS Performance Class Mistakes and How to Avoid Them

Performance Class is a brand new concept to many in the Canadian fenestration industry and...

Developing a Roadmap to Low-Carbon Buildings

How can governments and consumer associations transform the market so that we can achieve deep...

November 27, 2014

When Should We Update Our Depreciation Report?

Our clients have asked when they should start preparing for the update report – essentially...

Performance Class—The Key Concept at the Heart of NAFS

Performance Class is the master organizing principle within the NAFS standard. Classification of products is...

November 5, 2014

NAFS and the Problem with Mullions

Confused about NAFS and mullion testing? New Canadian guidelines clear things up for window manufacturers...

November 4, 2014

7 Reasons Why Buildings Don’t Get Maintained Properly

As a consultant I have heard the same old stories over and over again. It...

October 3, 2014

NAFS and Folding Doors

NAFS-08 doesn't have a Folding Door product type, but that hasn't stopped some manufacturers from...

September 10, 2014

What you Need to Know about NAFS in Canada

NAFS, the North American Fenestration Standard, changes how we test and specify fenestration performance in...