Ventilation Air In SIP Construction
Ventilation Air In SIP Construction
(OP)
I'm building a home using structural insulated panels. According to all the reports that I read, a home built using sip construction, if built right, is tight and requires outside air for ventilation. According to the North Carolina building code you need .35 ACH. What would be the best way to introduce outside air and how much air would be required? Could I use an exhaust fan only and assume outside air is coming in thru infiltration? Would I include a heat/energy recovery ventilator? If so, would it stand alone or connect to hvac unit? What manufacturer makes a heat/energy recovery ventilator for residential use?





RE: Ventilation Air In SIP Construction
2nd, You can't really count on infiltration anyway. "Tight" construction means a lack of infiltration.
3rd, In order to ensure that outside air is really ventilating the house, you must include some form of exhaust. A mechanically driven exhaust is the most positive, although pressure reliefs will work, too. It depends on the amount of outside air brought in through the unit.
Lastly, technically speaking, ASHRAE bases their ventilation standard on the number of occupants, not air changes.
RE: Ventilation Air In SIP Construction