How can I put the following as a formula:

1. 1 hour or greater to count as "1"
2. or a cumulative total of 2 hours (or more) in any seven consecutive days
to count as "1"
3. If the 1 hour and the 2 hours are exceeded within a consecutive seven day
period should count as "2"

The table is set out as follows:
cols: A= Date
B= Hours

Cells: "P5"= a consecutive 7 day period ("G5" and "H5"= dates for a rolling
last 7 days).

I have tried 'COUNT' but having trouble with it.