Wind Washing and Insulation R-Value
An explanation of the potential effect of wind on insulation's capacity to resist heat transfer
Heat Pumps for Cold Climates
Advances in air-source heat pump technology have led to equipment that is effective at low temperatures. Here’s a look at how they work and why they are a viable option.
Will a Heat Pump Water Heater Freeze Your Basement?
Study demonstratesthe effects of heat pump water heaters on surrounding air temperature
Measuring Natural Air Leakage
How to calculate ACHnat and reasons it can be a useful metric
Why is There Frost in the Attic?
If you've ever seen frost in the attic in winter, it's pretty to easy to understand why it's happening. It's the same thing that causes morning dew on the grass,…
Calculating Thermal Bridging in a Wood-Framed Building
An explanation of how to account for heat loss through lumber framing
Continuous Air Barrier Between Garage and House
A method for controlling air movement between garage and house to ensure healthy indoor air quality in living spaces
Make-up Air in Tight Houses
When homes are well air-sealed, negative pressures and supply air pose unique challenges
House Size and Air Leakage
The 2021 IECC helps close the large-house loophole
Make It a Mechanical Room, Not Just a Closet
HVAC equipment is expensive and critical for the health of occupants and buildings, so design the right-sized conditioned space to house it