Essential Questions 2.2

1. What is the difference between R-value and U-value? When are they used?
The U-value is the reciporcal of R- value
2. What are some leading causes of solar gain?
heat going thro windows and doors

3. What key areas of a building can minimize heat loss?
The walls with insalasion will minimize the heat loss.
4. Why is a cost estimate important to create before starting a project?
So you will now how much its going to cost and to also see if you can redus the priss of the project.