Energy & Efficiency

Xyla Exterior

New Xyla exceeds Passive House Air-Tightness Standard

We recently did a blower door test on a Xyla in northern New Hampshire to measure its air tightness—i.e., how “leaky” it was. The result was .38ACH@50 pa, which is well under the rigorous Passive House standard of .6 and almost seven times as […]