|
Roofing Comparison |
Characteristic |
LifePine |
Western Red Cedar |
| Durability, above ground |
Excellent |
Good 1 |
| Durability, ground contact |
Excellent |
Low |
| Bending strength |
High |
Low |
| Stiffness |
High |
Low |
| Hardness 3 |
High |
Low |
| Nailholding capacity |
High |
Low |
| Dry weight |
Moderate |
Low |
| Impact resistance 4 (inches) |
30 |
17 |
| Density (pcf) |
35.6 |
22.4 |
| Modulus of elasticity (x10 6 psi) |
1.79 |
1.11 |
| Specific gravity 5 |
0.51 |
0.32 |
| Modulus of rupture (psi) |
12,800 |
7,500 |
| Price |
Moderate |
High / Moderate |
| Availability |
Excellent |
Inconsistent |
| Color when new |
Golden Tan |
Tan |
| Color weathered |
Driftwood Gray |
Gray |
| Warranty |
50 years |
0 to 30 years |
| R Value |
85% Greater than Cedar with R-value 1.852 |
- |
| Wind Resisitance |
200% over requirements for Hurricane Zone |
- |
| Hail Resistance |
75% Greater than Cedar -
UL-2218 passes class 4 |
- |
| Treatment |
Meets AWPA standards for pressure treated lumber |
Usually Untreated |
| Re-Treatment |
Never |
Every 2 to 4 years |
| Quality |
100% of LifePine products are 3rd party certified -
TPI inspected |
Extreme Variations in quality between Suppliers |
| Sustainability |
Plantation Grown |
Old Growth Nearly Depleated |
| Flammability |
1/3 that of Cedar with
ASTM e-84 Class B |
- |
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• Wood Handbook: Wood as an Engineering Material; 1999; USDA Forest Products Laboratory
• How to Buy Construction Lumber; University of Wisconsin - Extension/Madison; September, 1979
• Price/availability data; Wood magazine survey, Better Homes & Gardens, June/July 2002 
• USDA Forest Products Laboratory; Madison, WI
