The existing bath fan was sealed with foam to prevent conditioned air from escaping into the attic. It was then properly vented.
Top plates are the tops of walls that are visible inside the attic space. These are sealed with foam, as they often have small gaps that allow conditioned air to escape.
Chimneys often have air gaps around them. This particular chimney did not have a large gap, but it was still sealed so to prevent heat loss. This is done using fire caulk so that it is safe at high temperatures. The chimney is then wrapped with Rockwool (not pictured) so that cellulose insulation can be safely blown up against it.
The bath fan was vented out the roof using an insulated duct to prevent dumping warm, moist air into the cold attic.
We created this custom scuttle hatch cover to prevent heat loss in from the large attic access hole in the home. It is created using several layers of SilverGlo board foam.
The rim joists of the home were sealed up using spray foam insulation to prevent the infiltration of unconditioned outside air.
This homeowner was having issues with a cold bedroom and thought there was an issue with wall insulation. After looking into the problem we discovered it was an air sealing issue in the attic and the basement. We remedied their issues and they now have a warmer, more comfortable home!