Allowable Uplift Pressure

Metl-Span 2″ CFR 30 Roof Panel

Maximum Allowable Uplift Pressure (PSF)
Span 16GA Purlins 14GA Purlins
1.50 163.30 176.40
2.00 122.40 132.30
2.50 97.90 105.80
3.00 81.00 88.20
3.50 69.90 75.60
4.00 61.00 66.10
4.50 54.00 58.80
5.00 48.50 51.60
See Notes

 

Metl-Span 2″ CFR 36 Roof Panel

Maximum Allowable Uplift Pressure (PSF)
Span 16GA Purlins 14GA Purlins
1.50 135.00 160.30
2.00 102.00 120.30
2.50 81.00 96.20
3.00 68.00 80.20
3.50 58.00 68.70
4.00 51.00 60.10
4.50 45.00 53.40
5.00 39.90 46.70
See Notes


Metl-Span 2″ CFR 42 Roof Panel

Maximum Allowable Uplift Pressure (PSF)
Span 16GA Purlins 14GA Purlins
1.50 115.00 136.30
2.00 87.00 102.20
2.50 69.00 81.80
3.00 58.00 68.10
3.50 49.90 58.40
4.00 43.00 51.10
4.50 38.80 45.40
5.00 34.90 39.70

Notes:

  1. All panels have a 26ga interior steel skin and a 24ga exterior skin.
  2. All roof panel clips tabs are fabricated from 20ga steel.
  3. All roof panel clip bases are fabricated from 12ga steel.
  4. All interior suport clips are attached to 16ga purlins with (3ea) 1/4-14×3″ #3SD.
  5. All interior support clips are attached to 14ga purlins with (2ea) 1/4-14×3″ #3SD.
  6. All 14ga purlin uplift values are baed on ASTM E1592 uplift testing & NOA 05-0830.04 Evaluation Report.
  7. All 16ga purlin uplift values are based on empirical data derived from Dade Cty NOA 05-0830.04.
  8. All 16ga purlin uplift values are based on a pullout safety factor of 3.0 per AISI 2001.
  9. All 16ga purlin uplift values are based on a clip prying coefficient of 1.6 applied to the interior uplift reaction.
  10. All uplift values are based on a minimum of a 3-span or 4-span condition.
  11. All uplift values are based on a maximum deflection of L/240.