Then rain falls on a roof and if the roof works properly the rain will drain off of the structure.
It is going to depend on how much rain you get! It will never be the same amount for each rain fall.
using 100 year rain fall data
wht is the name of the song
The duration of Rain on the Roof is 1.37 hours.
The roof wouldn't fall.
"Rain on the Roof" was created in 1967 and released as part of The Lovin' Spoonful's album "Hums of the Lovin' Spoonful."
By taking the square footage and the actual pitch of the roof and using a chart that will give you a 10 year frequency (average rain fall) per hr. Also a major factor is if the roof surface is for weather protection only or promenade
This is triangular in shape or peak that is created on the side. Because of its shape, it allows leaves, rain to fall from the roof away from the house. Gabled roofs differ in pitch and steep which serves the purpose of protecting the roof from the effects of water.
You can place it on the roof, but not on the sides. Blowing wind can create a "rain shadow" on one side, with drops blocked as they fall. Alternately, projections from the building could funnel rain from a large wall area into the gauge.
so rain water runs off the roof
Providing the roof covers the same surface area in plan view (looking down from above it, i.e. the ground area covered), then the rain landing on it will be the same. In other words, a high pitched roof would have to be bigger to cover the same plan view surface area as a low pitched roof. For a given area covered by a roof, the pitch of the roof won't matter. If the pitch is so steep that the rain flows off it so fast that your gutters can't cope, then you will lose the rain and fail to collect it. What you need to maximise is the ground area covered by roof. This will maximise the rain you can collect.