Square Footage

Kitchen Wall

• 14' x 12' = 168 sq feet

Back Wall

• 32' x 10.5' - 84 sq' (doors) = 336 - 84 = 252 sq'

Garage Wall

• 20' x 13' = 260 sq'

Garage Front

• 11' x 13' - 64 sq' (door) = 143 - 64 = 70 sq'

Total:

• = 168 + 252 + 260 + 70
• = 750 sq'

Layers

• house wrap
• rigid insulation (1")
• strapping at 16" centers (PT??)
• house over strapping ?
• barn board horizontally run

Rainscreen System

https://joneakes.com/jons-fixit-database/910-what-is-a-rain-screen-wall

Rigid Foam

I think we don't need rigid foam when using an inner airchamber/rainscreen. In the above pictures, rigid foam is shown.

If we do decide to use rigid foam, we could use 1" CodBoard 

CodeBoard

http://insulation.owenscorning.ca/builders/products/codebord.aspx#:~:text=CodeBord%C2%AE%20insulation%20is%20GREENGUARD,%C2%AE%20insulation%20with%20shiplapped%20edges.

FOAMULAR Extruded Polystyrene Rigid Insulation is made in Canada and offers a combination of characteristics that result in long-term thermal performance of R-5 per inch, compressive strengths of 20-100 PSI and exceptional moisture resistance. Using FOAMULAR insulation can create comfortable living spaces in basements, as well as minimizing heat loss or gain when using it on above-grade exterior walls and the interior of foundation walls. FOAMULAR Extruded Polystyrene Rigid Insulation is lightweight and durable making it easy to handle, saw, cut and score.

• For use in below grade walls against the interior or exterior concrete foundation wall.

• Long-term thermal resistance and moisture resistant

• R-5 per inch of thickness

• Easy to install, lightweight and durable

• Minimum 20% recycled content, SCS Certified

• GREENGUARD Gold certified for indoor air quality.

Jay's Siding

Pricing

Suppliers

Other Siding Options

References