Now that the school semester has ended, volunteer workers have been in short supply. This will mean a slower construction pace until students return for the summer semester. This week the majority of the work will be focusing on preparing the building for window and drywall installation. For the most part, this means finishing attaching the exterior sheathing around the rest of the modules. Before this takes place sheets of expanded polystyrene (commonly referred to as XPS or XEPS) are being placed above the sprayed-in polyurethane where the roof parapet meets the roof and walls. This insulation will help limit air infiltration and heat transfer. Without it, air could more easily flow above the sprayed-in insulation (in front of the roof parapet) and down behind it into the house.
The Kitchen Module with XPS Being Installed In Front of the Roof Parapet
Also, before the rest of the exterior sheathing is installed, gaps in the wall insulation will need to be filled. These gaps have mostly occurred around areas where thicker conduit is running through the exterior wall. For more information on the sprayed-in insulation and the insulation installation, see “Construction Techniques: Spray Foam Insulation.”
