Where is the drip edge fitted between?

The drip edge is specifically designed to be fitted between the roof decking and the roof covering. Its primary function is to direct water away from the roof and prevent it from seeping under the roofing materials. By positioning the drip edge in this way, it effectively guides rainwater that accumulates at the roof's edge into the gutters or away from the fascia, thus protecting the underlying structures from water damage.

The other options do not accurately reflect the intended placement and purpose of the drip edge. For instance, fitting it between the roof covering and insulation would not provide the necessary drainage function and could trap water against the insulation. Similarly, placing it between the roof decking and the underlayment, or between the fascia and the soffit, does not allow the drip edge to fulfill its role in directing water off the roof efficiently. Overall, locating the drip edge between the roof decking and the roof covering maximizes its effectiveness in safeguarding the roofing system.