GP Forcefield over old farmhouse board sheathing/asphalt siding – GreenBuildingAdvisor

Zone 6A.  I’m wondering if there is any reason I can’t install GP Forcefield over old board sheathing that has asphalt siding attached to it.  I’d like to use forcefield so I can create an air barrier.  Also, the old cladding would be extremely labor intensive to remove.  The sheathing and cladding is 1.75″ thick and seems to be structurally sound.  I would be fastening the ForceField through to the rough sawn 2×4 studs.

The end result retrofit assembly would be…

1/2″ drywall

4″ rough sawn 2×4 stud cavity with R15 Rockwool

1.75″ old board sheathing + old asphalt siding

7/16″ GP ForceField taped as primary WRB

2″ polyiso foam (two one inch layers staggered, outer layer taped)

3/4″ rainscreen 1×4 strapping

LP SmartSide