find pitch of roof

00:58

5:02

1:03

6:31

12:43

11:57

7:19

3:14

8:06

18:18

00:18

6:04

8:46

8:27

7:29

5:21

3:31

1:52

1:57

2:17

1:08

2:07

12:46

3:00

8:02

3:06

3:59

1:46

3:24

13:27

25:26

10:23

1:41

16:53

7:37

6:07

5:00

17:52

4:39

22:43

38:36

4:44

3:11

10:45

9:18

1:24

10:14

1:47

00:24

3:28

3:31

00:57

00:24

4:26

5:55

13:28

8:01

4:23

9:26

1:50