Mueller 9x12 D.I.Y. Greenhouse - Manual (Page 10)

Mueller, Inc. 9 x 12 D.I.Y. Greenhouse Instructions; For additional information, see the D.I.Y Installation Video
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R-1
EC-1
EC-1
R-1
RP-1
RP-1
ROOF PURLIN
Open side of RP-1 faces to center of building.