A wall is not a ventilation system, therefore airtightness is not the enemy.

The requirements for airtightness in a passive house are an important factor when looking at energy efficiency and comfort.

Following on from last month's blog about roof underlays and general roof construction details we will now take a closer look at skillion roofs.

Following on from last month’s blog about WUFI, we would like to take a closer look at specific construction details in New Zealand.

In this blog I give a brief overview about how to simulate heat and moisture flow to prevent Leaky Building 2.0, in both stationary and non-stationary methods.