Chris applied three coats of Railroad Varnish from Liberty Paint Corp in Hudson, NY. Susan looked up the CAS numbers listed on the label, not entirely trusting the “environmentally friendly” and “VOC compliant” claims. The top five ingredients are the same as Waterlox — solvents, Tung Oil, gum and resin. Tung Oil is considered a green finish and a favorite of environmentalists, websites say. And, yes, the VOC level is within New York State limits.

After leaving the windows open during the coldest week of winter, Chris decided to crank up the HRV for some serious ventilation. The fumes have dissipated and the children are testing how fast they can slide across the floor in their socks.