What Performance Grade ratings are listed for 400 Series Stormwatch windows?
The PDF lists multiple 400 Series Stormwatch products with Performance Grade values such as LC-PG70, LC-PG60, and LC-PG50 depending on configuration and tested size.
Why this matters
Performance Grade connects a product configuration to standardized testing requirements. It is more than a wind-load number because it includes air leakage, water penetration, operating force, structural testing, and other requirements.
Example values from the source
| Configuration | Example PG | Example DP |
|---|---|---|
| Casement | LC-PG70 | 70/70 |
| Awning | LC-PG60 | 60/65 |
| Tilt-Wash Double-Hung | LC-PG50 | 50/65 |
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