Continuous insulation is the foam insulation board most contractors use to help insulate the exterior of your roof. However, this rigid foam board insulation can be used for other things, not just insulating the roof on your house. Here are just three examples of what this versatile foam insulation can be used for.
Insulating the Walls in Your Garage or Shed
Continuous insulation is often sold in massive sheets, ergo the moniker "continuous." However, it can be cut to fit with little difficulty (a table saw is most effective at cutting it quickly and with clean straight edges). That said, if you want to insulate the walls in your garage or shed, and you currently have open spaces showing between the vertical stud boards of these structures, you can cut a couple of sheets of continuous insulation to fit in between these spaces. Then you can either wedge the the strips in and leave them, or use small tacking nails to secure them in place. Either way, it will make your garage or shed a little less chilly in winter.
Insulating Your Ice Fishing Shanty
If you live in the Midwest, and you enjoy ice fishing every winter, chances are you have an ice fishing shanty. Despite the fact that these shanties are supposed to keep you from freezing, they are often made of metal and are only effective at cutting off the biting Arctic winds that tend to blow in with Midwestern winters. To make your ice fishing shanty more comfortable and cozy (without using a space heater that could send you plummeting through the ice into the freezing cold lake!) cut sheets of continuous insulation to fit the sides and roof of the exterior of your shanty. If you want double the blockage on the freezing temperatures, cut strips of this stuff to fit the inside walls of your shanty as well. Bolt it on or adhere it with a waterproof, sub-zero-tolerant construction adhesive.
Insulating a Warming Hut for the Homeless
If you currently contribute your time and energy to helping the less fortunate, you could build a warming shelter for the homeless. Many cities have these, and they are equipped with a space heater (which is locked up behind the shed but vents warm air into the shed), and are well-insulated against the cold. If you are going to build one on a smaller scale, or help with one for the city, be sure to use continuous insulation to line the interior walls and to fill the spaces between the interior and exterior walls. This prevents any of the heat provided from escaping to the outside.