How to set up greenhouse dimensions ?
Hereunder the orientation setup of a greenhouse :
-Gable 1 : South wall.
-Gable 3 : North wall.
-Length 2 : East wall.
-Length 4 : West wall.
Orientation is based on gutter axis or Gable 3. For instance, it is negative if Length 2 is towards North-East, and positive if Length 2 is towards South-East.
Examples :
If Gable 3 is perfectly north-facing, then your greenhouse’s direction in degrees will be 0. It also means that Length 2 is totally east-facing, while Length 4 is west-facing.
If Gable 3 is west-facing, then your greenhouse’s direction in degrees will be -90. It also means that Length 2 is north-facing, while Length 4 is south-facing.
If Gable 3 is east-facing, then your greenhouse’s direction in degrees will be 90. It also means that Length 2 is south-facing, while Length 4 is north-facing.
If Gable 3 is perfectly south-facing, then your greenhouse’s direction in degrees will be 180. It also means that Length 2 is west-facing, while Length 4 is east-facing.
If Gable 3’s direction is N-30°E, then Length 2’s direction is N-120°E and Length 4’s one is N-60°W.
If Gable 3’s direction is N-30°W, then Length 4’s direction is N-120°W and Length 2’s one is N-60°E.
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