Hi guys, Could I ask what is the about infiltration rate of old townhouse in NYC? Where could I find the standard? 0.2cfm/ft2? Is it correct? Thanks Yang -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20120424/6f828795/attachment.htm>