Quality Information for Energy Conservation

News - HERS Raters

The Whole House Approach

Posted in: HERS Raters

We sat down and interviewed one of our Raters, Roy Chatalbash, and got his view on what he calls the Whole House approach to HERS Rating. 

SEA: What does energy rating mean to you?

Roy: The Home Energy Rating System (HERS) methodology takes into consideration a large group of variables that help a Rater understand the relative performance of the different attributes of a home, and enables the Rater to compare one house with another.  For example, a home that has more window area than an average home may need to have a larger HVAC system to provide adequate comfort. So, one consequence of a possible design decision, more glazing (windows), creates higher energy use and therefore a negative effect on the HERS Index.

SEA: When you say a whole house approach, what does that mean for energy rating?