The attic as a tuque

Properly insulating the attic is an important part of home heating. It’s also definitely a do-it-yourself job. Postmedia Network

There are two types of tuque people — those persons with a mop full of hair who selectively wear tuques as a fashion statement, and the follicly challenged, who on a cold winter’s day, depend on this garment for their ultimate survival.

The tuque, for all its simplicity, is nevertheless an effective tool in guarding our heads from two of the basic characteristics of heat. These being that heat rises, and that heat naturally moves from hot to cold.

Therefore, understanding that a warm entity, such as your body, or your home, doesn’t absorb cold, but conversely loses heat, gives us a better understanding of the value of insulating your head, and our related topic of today, your home’s attic.

Now, what about the row of shirtless guys with painted letters on their chests that frequent -25 degree Celsius professional football games, why aren’t they freezing, you may ask? Unfortunately, the science of heat transfer cannot be altered by applying paint to one’s chest, nor can it be subdued for any length of time with the use of alcohol, hallucinogenic drugs, or the vocalizing of inspirational chants. With heat escaping their bodies in great volumes with every second that passes, these brave souls will have approximately a 10-minute window in which to get themselves on camera. If their moment of glory should pass, the boys will have some humbling choices. Either continue their shirtless crusade, and die like real men or, toss on their jackets and huddle up like a gang of emperor penguins. Regardless, shame and humility is in their future.

So, your home, like a lettered body up there in row #102, requires insulation, not so much to keep the cold out, but to keep the heat in. And, due to heat rising, and cool air sinking, properly sealing the space between living area and attic space becomes even more critical to home comfort and energy savings.

In today’s age of rising heating costs, a homeowner should be looking to insulate their attic floor with at least R-60 of thermal resistance. This would translate into layering the floor space with 18-20 inches of fiberglass pink batt insulation, or filling the area with 22-24 inches of Atticat blowing wool.

Insulating, or adding insulation to a home’s attic space is a very do it yourself project, with the greatest challenge to success being your ability to manoeuvre up through the ceiling’s 22 x 30 inch attic hatch. If you’re capable of achieving this semi acrobatic feat, have your local building supply dealer deliver a sheet of 5/8 inch spruce plywood (cut in half, providing two pieces of 2’ x 8’ walking planks) along with the insulation. The 5/8” plywood, placed diagonally or perpendicular to the truss joists, will allow you to safely navigate the attic floor, in order to place the batts or blow in the wool.

Don’t omit the plywood or skimp on a thinner sheeting. Sure footing is key to the success of any operation. With the truss joists providing 1-1/2 inches of footing, spaced at every 24 inches on center, while being somewhat hidden by any existing insulation, the chances of a fellow’s eligibility in entering a gender neutral washroom facility, increases twofold with every attempted step. Plus, the plywood can be further ripped into 12 inch strips, providing excellent shelving, or be used to create a deeper shaft around your attic hatch.

Before insulating, ensure that there are attic vents (24” x 48” raised foam shields) stapled and fitted in between each truss, that stretch down into the soffit. These vents are essential in preventing the insulation from blocking the cool air from being drawn up into the attic space.

Finally, invest in a sheet of 2 inch ridged insulation, then cut it to size and glue the pieces to the back of your attic hatch door, effectively insulating this last cold spot.

Good building.

As published by the Standard-Freeholder
Handyman's Hints Standard-Freeholder Cornwall Ontario by Chris Emard

Leave a Reply