Green Deal Scheme Launched to Make Homes More Energy Efficient

The video tutorial involves the speaker explaining a process as they perform it, followed by a confirmation of task completion.

What does the speaker mean by 'I'll explain as I'm doing it'?

How might the tone of the speaker change throughout the dialogue?

What could be the context of the question 'Is it?'

What can be inferred about the relationship between the speakers based on their dialogue?

What does the phrase 'I'm done' imply about the speaker's state?