PERSIST/REMOTE variation for a greenhouse
– 3/4″ DF-L Plywood Sheathing (painted with two coats acrylic paint for durability, considering edge treating with PENTOX or similar before paint)
– 2″x4″ SPF Studs (treated with surface applied borate treatment and two coats of acrylic paint for durability). 2″x4″ will attach to a pressure treated sill.– Closed cell foam insulation in between studs R15 to R20 (not sure if cavity will be completely full – budget restrictions)– 1″ DOW EPS Cladmate outside studs (doubles as Water-resistive-barrier (WRB))
– Flashing to protect bottom edge of EPS– 1″x4″ SPF furring (rainscreen)– Siding
- Do I still need a WRB on the plywood if I blow in closed cell between studs in either approach – this is a greenhouse moisture is ok inside?
- If I apply Approach 2 to the north facing roof (45 deg pitch) do I need a vented air space / WRBs on either plywood sheathing?
- Put my plywood on inside as 3/4″ ply would give me great racking rigidity and based on recent articles appears a recognized thermal barrier?