Question

Eaves protection should extend from the end of the eaves to appoint at least _____ inside the exterior wall line of the house?

1) 6 inches
2) 12 inches
3) 18 inches
4) 24 inches

Answer 1

Eaves protection should extend to a point that is 24 inches inside the exterior wall line of the house.

Step-by-step explanation:

This is to ensure that the eaves provide adequate protection against water infiltration into the wall system. A well-constructed wall without leaks would have the rate of heat flow determined by the R factor of each layer and the temperature difference between the inside and the outside.

With the inside at 22 °C and the outside at -2 °C, and considering the R factors given for drywall and insulated siding. However, when 2-by-4 studs are added into the structure, the rate changes because wood has a different R factor, affecting the overall insulation of the wall.

Therefore, making guesstimates compared to carefully calculated approximations can lead to significant differences in the expectations for heat loss or gain in a house.