>3 bats under summer house roof

Date of Observation
Roost Details
Give specific details on the location e.g. is it in the attic, under roof tiles, inside the building, in a tree hole, underneath bark of a tree:

Under roof tiles in a summer house. Usually see them hunt close-by and around the house, 1.5-4 m above the ground. 

Can also hear them move around with scratching noises under the roof in late evening and during the night.

Have returned to the same site the last 3-4 years. 

Where is the Roost
House / Cabin
How long has it been used by Bats
2-5 Years
How do you know it's a Bat Roost
Seen Bat Flying
How many Bats use this Roost approximately
Do you have sound files of recorded Bats
How did you hear about BatMapper?: -radio -tv -newspaper -online news -social media - other (please give details)