USE CATEGORY | SERVICE CONDITIONS | COMMODITY | Statistical Values | ||||
Construction Waste (%) | Mean Service Life (yr) | Standard Deviation (yr) | Geometric Mean of Service Life (yr) | SD of Lognormal Service Life (yr) | |||
UC1 | Interior construction Above Ground Dry | These uses not applicable regarding preservative usage | |||||
UC2 | Interior construction Above Ground Damp | ||||||
UC3A | Exterior construction Above Ground Coated & rapid water runoff | ||||||
UC3B | Exterior construction Above Ground Uncoated or poor water run-off | Sawn Product | 2.5% | 10 | 5 | 2.2 | 0.47 |
Plywood | 2.5% | 10 | 5 | 2.2 | 0.47 | ||
UC4A | Ground contact or fresh water Non-critical components | Sawn Product | 2.5% | 15 | 5 | 2.7 | 0.32 |
Posts | 0.0% | 20 | 5 | 3.0 | 0.25 | ||
Plywood | 2.5% | 15 | 5 | 2.7 | 0.32 | ||
UC4B | Ground contact or fresh water Critical components or difficult replacement | Sawn Product | 2.5% | 15 | 5 | 2.7 | 0.32 |
Posts | 0.0% | 20 | 5 | 3.0 | 0.25 | ||
Plywood | 2.5% | 15 | 5 | 2.7 | 0.32 | ||
UC4C | Ground contact or fresh water Critical structural components | Sawn Product | 2.5% | 30 | 5 | 3.4 | 0.17 |
Round piling | 0.0% | 50 | 10 | 3.9 | 0.20 | ||
Posts | 0.0% | 25 | 5 | 3.2 | 0.20 | ||
UC 4A, B, & C | Ground Contact | Poles | 0.0% | 60 | 15 | 4.1 | 0.25 |
Crossties | 0.0% | 40 | 10 | 3.7 | 0.25 | ||
UC5A | Salt or brackish water and adjacent mud zone Northern waters | Sawn Product | 2.5% | 40 | 10 | 3.7 | 0.25 |
Piles | 0.0% | 40 | 10 | 3.7 | 0.25 | ||
UC5B | Salt or brackish water and adjacent mud zone NJ to GA, south of SanFran | Sawn Product | 2.5% | 40 | 10 | 3.7 | 0.25 |
Piles | 0.0% | 40 | 10 | 3.7 | 0.25 | ||
UC5C | Salt or brackish water and adjacent mud zone South of GA, Gulf Coast, Hawaii, and Puerto Rico | Sawn Product | 2.5% | 40 | 10 | 3.7 | 0.25 |
Piles | 0.0% | 40 | 10 | 3.7 | 0.25 | ||
UC 5A, B, & C | Marine Exposure | Plywood | 2.5% | 40 | 10 | 3.7 | 0.25 |