Heavy Commercial 7000 Series
Fiberglass Windows
Serious Energy introduces the next generation in high-performance, energy-efficient commercial window systems with the Heavy Commercial 7000 Series Fiberglass. We offer one of the highest combinations of thermal and structural performance on the market today and are proud to offer the superior durability, strength-to-weight, and dimensional stability benefits of heavy-duty, fiberglass frame and sash SeriousWindows™ as part of the DOE Volume Purchase Program for the very first time.
SeriousWindows Outperform
SeriousWindows incorporate super-insulating SeriousGlass™ systems and fiberglass frames to deliver superior cost-savings and greater indoor comfort. Full-frame insulation values range up to R-5 (U-factor 0.2), nearly 2 times the performance of commonly specified thermally-broken aluminum commercial windows (U-factor 0.35).
Select window style below to view performance specs on each of the window types available:
| Window Type | Casement | Casement | Casement | Casement | Casement |
| Product Name | Serious Windows 7000 Series - 3L | Serious Windows 7000 Series - 4L | Serious Windows 7000 Series - 4H | Serious Windows 7000 Series - 5L | Serious Windows 7000 Series - 5H |
| R-value | 3.7 | 4.2 | 4.0 | 4.5 | 4.8 |
| U-factor | 0.27 | 0.24 | 0.25 | 0.22 | 0.21 |
| Solar Heat Gain Coefficient | 0.25 | 0.24 | 0.36 | 0.15 | 0.22 |
| Condensation Resistance | 57 | 60 | 60 | 63 | 64 |
| Air Leakage | ~0 | ~0 | ~0 | ~0 | ~0 |
| Structural Class Type | HC | HC | HC | HC | HC |
| Performance Grade | 100 | 100 | 100 | 100 | 100 |
| Window Type | Awning | Awning | Awning | Awning | Awning |
| Product Name | Serious Windows 7000 Series - 3L | Serious Windows 7000 Series - 4L | Serious Windows 7000 Series - 4H | Serious Windows 7000 Series - 5L | Serious Windows 7000 Series - 5H |
| R-value | 3.7 | 4.2 | 4.0 | 4.8 | 4.8 |
| U-factor | 0.27 | 0.24 | 0.25 | 0.21 | 0.21 |
| Solar Heat Gain Coefficient | 0.25 | 0.24 | 0.36 | 0.15 | 0.22 |
| Condensation Resistance | 57 | 61 | 60 | 64 | 65 |
| Air Leakage | ~0 | ~0 | ~0 | ~0 | ~0 |
| Structural Class Type | HC | HC | HC | HC | HC |
| Performance Grade | 100 | 100 | 100 | 100 | 100 |
| Window Type | Fixed | Fixed | Fixed |
| Product Name | Serious Windows 7000 Series - 4L | Serious Windows 7000 Series - 5L | Serious Windows 7000 Series - 5H |
| R-value | 4.2 | 4.8 | 5.0 |
| U-factor | 0.24 | 0.21 | 0.2 |
| Solar Heat Gain Coefficient | 0.28 | 0.17 | 0.26 |
| Condensation Resistance | 52 | 53 | 53 |
| Air Leakage | ~0 | ~0 | ~0 |
| Structural Class Type | HC | HC | HC |
| Performance Grade | 100 | 100 | 100 |
SeriousWindows save energy for:
- Weatherization Assistance Programs
- Public Housing & HUD
- Utility efficiency programs
- Schools & Universities
- Commercial properties
- Multifamily housing
- Single-family residences