The elemental provisions, or Deemed To Satisfy as it used to be called, provides the least flexible way to achieve compliance of energy Efficient home designs elements but can still be useful in some circumstances, particularly light weight constructions.
The elemental provisions dictate the insulation or performance levels you need to comply with for each Energy Efficient home designs elements.
So for a floor you have to have a certain R value, then the walls you have to have a certain R value and so on. You cannot increase the R value in the walls to compensate for less insulation in the floor. Each individual component must comply.
This often makes it difficult to comply with this method.
As always energy efficient home design will be more easier with Erating and we will find the the correct assessment method for your project.