In my last post about framing my new home, I wrote mostly about the insulation techniques that I am using and the layers of protection that I am adding to the wall construction to keep the indoor temperature consistent, along with techniques that I used in building the basement and first floor.
My framing design and insulation layout will be just as important on the second story and roof. However, there are a few extra items that I have to keep in mind as I proceed. I have to pay attention to the dead space between the rafters and the top of the second story frame when I insulate - the spots where the roof meets the walls of my home is a common area where heat tends to escape in many homes. In order to avoid that, I’m making sure the insulation makes a seamless transition from the rooftop down to the foundation.
My plan is to use cellulose or dry-oak on the inside between the rafters, with an R value of 38. On the outside, I will hang R20 to R30 insulation on the roof exterior. I know it may seem strange to some folks that I plan to hang insulation on the outside of the plywood, but this all fits in to an advanced framing technique that I am using in the construction of my new home that will create a nice, tight frame.
When it comes to framing for this home, one rule I follow is “you can never have too many studs”. I have placed a few extra studs in places where I think the structure will benefit from them, but generally I place studs every 16 inches. The extra studs will come in handy later on when I am installing drywall and other interior features.
Heat tends to escape homes through the corners, where an outside wall intersects an interior wall. I’ve paid special attention to the corners of my new home and placed the studs a little bit away from the corners to make them insulatable. I’ve found that in most conventional home construction, contractors tend to miss the corners or construct them with speed in mind. I think paying attention to the small details like corners and roof cavities will make a big difference when I get my first energy bill.
What do you think of the progress I’ve made so far? Join the conversation and let us know!