1. Building Energy Code Requirements
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2. Florida – ASHRAE

3. ASHRAE
Commercial Code: State developed code, Chapter 13 of the Florida Building Code, meets or exceeds ASHRAE , mandatory statewide; can use Energy Gauge FLACOM to show compliance.

4. ASHRAE 90.1 2004 Florida Heated (condition buildings)
Roofs and Ceilings: U value of .065
Walls: U value of .113
In “R” value terms it means the following:
Roofs and Ceilings: In place R-15.3
Walls: In place R-9

5. Insulation compression and reduction of R-Values
A loss in R-Value occurs when the insulation is compressed between the roof and walls structurals and the exterior metal skin.

6. Metal Building Roof Requirements Conditioned Building
In order to achieve a U-Value of .065 (in place R-15.3) in the roof the following is required
6” of R-19 metal building fiberglass insulation
Thermal Blocks – are required
This will achieve an in place R-value of R-15.4

7. Metal Building Wall Requirements Conditioned Building
In order to achieve a U-Value of .113 (in place R-8.9) in the walls the following is required
4” of R-13 metal building fiberglass insulation
Thermal Blocks – not required
This assembly will achieve an in-place R-Value of R-8.9

8. ASHRAE 90.1 2004 Florida Semi-Heated
Roofs and Ceilings: U value of .167
Walls: U value of .184
In “R” value terms it means the following:
Roofs and Ceilings: In place R-6
Walls: In place R-5.5

9. Metal Building Roof Requirements Semi-Heated Building
In order to achieve a U-Value of .184 (in place R-6) in the roof the following is required
3” Thick of R-10 metal building fiberglass insulation
Thermal Blocks – are not required
This will achieve an in place R-value of R-6.5

10. Metal Building Wall Requirements Semi-Heated Building
In order to achieve a U-Value of .184 (in place R-5.5) in the walls the following is required
3” of R-10 metal building fiberglass insulation
Thermal Blocks – not required
This assembly will achieve an in-place R-Value of R-7

11. Summary
If you have any questions you can consult your local building code official.