Here are some progress photos on a current project which should interest those interested in building science. The AH project is under construction fairly close to my own home so I can get over there frequently. This will be a fairly modern house with large windows, double stud cellulose filled walls, a high level of air sealing and an amazing three season porch using the Kent Webster's (the builder) most excellent system of removable panels. The most interesting thing in these photos for many readers will be the use of board sheathing. Local builders are returning to this method as it provides a vapor open layer in a location within the wall where a barrier to moisture (plywood, OSB) can cause problems in a heavily insulated wall. Plus it's local wood. plus it's more fun - carpenters don't get to cut many actual 1x boards anymore. The exterior will be sealed up with Mento to prevent air movement through the wall - an excellent combination with the board sheathing.