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Building Energy Code Requirements . Presented by: The leader in metal building insulation . Tennessee No State Building Energy Code. ASHRAE 90.1 2004 .

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building energy code requirements

Building Energy Code Requirements

Presented by:

The leader in metal building insulation

ashrae 90 1 2004
ASHRAE 90.1 2004

Commercial Code: ASHRAE 90A-1980 and 90B-1975 statewide, voluntary. Jurisdictions can adopt a more stringent code; IECC 2000 with 2001 amendments is an option.

ashrae 90 1 2004 tennessee
ASHRAE 90.1 2004Tennessee
  • 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
insulation compression and reduction of r values
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.

metal building roof requirements conditioned building
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
metal building wall requirements conditioned building
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
ashrae 90 1 2004 tennessee8
ASHRAE 90.1 2004Tennessee
  • Semi-Heated
    • Roofs and Ceilings: U value of .097
    • Walls: U value of .134
  • In “R” value terms it means the following:
    • Roofs and Ceilings: In place R-10.3
    • Walls: In place R-7.5
metal building roof requirements semi heated building
Metal Building Roof Requirements Semi-Heated Building

In order to achieve a U-Value of .097 (in place R-10.3) in the roof the following is required

  • 6” Thick of R-19 metal building fiberglass insulation w/o thermal blocks (achieves an in place R-value of R-10.2)

or

  • Standing Seam Roof: 3” Thick of R-10 metal building fiberglass insulation with thermal blocks (achieves an in place R-value of R-10.3)
metal building wall requirements semi heated building
Metal Building Wall Requirements Semi-Heated Building

In order to achieve a U-Value of .134 (in place R-7.5) 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
summary
Summary

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