The Coeur d’Alene 1010 Picture Window delivers AAMA LC-PG55 performance ratings in a 2¾” frame depth that works for both new construction and replacement projects. At 0.03 cfm/ft² air infiltration, it beats most competitors on the metric that directly impacts heating bills. The reinforced vinyl frame handles Montana’s temperature swings without the bulk that complicates retrofit installations.
This fixed window targets contractors who need proven performance without over-engineering. The 55.14 psf design pressure rating handles Montana wind loads, while the modest frame depth keeps installation straightforward in existing rough openings.
Performance That Matters in Montana
The numbers tell the story. Testing on a 55 x 55 inch unit produced these results:
| Specification | Value | Source |
|---|---|---|
| Design Pressure | 55.14 psf (2640 Pa) | Tested |
| Air Infiltration | 0.03 cfm/ft² (0.17 L/s·m²) | Tested |
| Water Resistance | 8.36 psf (400 Pa) | Tested |
| Structural Test Pressure | 82.71 psf (3960 Pa) | Tested |
| Frame Depth | 2¾ inches (70mm) | Manufacturer |
| Frame Material | Reinforced vinyl (PVC) | Manufacturer |
| IGU Thickness | ¾ inch (19mm) | Manufacturer |
That air infiltration number deserves attention. At 0.03 cfm/ft², this window seals tighter than many casements. For fixed glass, that’s exceptional. The AAMA LC-PG55 rating confirms it meets Light Commercial standards at Performance Grade 55 — sufficient for most residential applications and many commercial projects.
The structural test pressure of 82.71 psf provides a healthy safety margin above the design pressure. Windows don’t fail at design pressure. They start showing problems. This unit tested to 150% of its rating without failure.
Frame Construction and Installation
Reinforced vinyl (PVC) forms the backbone of this window. The 2¾ inch frame depth splits the difference between slim residential profiles and beefier commercial frames. Deep enough for ¾ inch IGUs, shallow enough to work in standard 2x4 wall construction.
Compared to Coeur d’Alene’s 3000 Series, which features a heavier extruded frame with fixed glass positioned over the nail fin for structural support, the 1000 Series prioritizes versatility for both new construction and replacement applications.
Installation specs matter more than most contractors realize. Coeur d’Alene specifies #8 x 1 inch wood screws at 6.5 inch spacing around the full perimeter. Follow it exactly. Faulty installation is the primary reason for warranty service rejection — straight from the manufacturer.
The window arrives with pre-punched nail fin, PVC glazing beads, and aluminum spacers in the IGU. It’s compatible with OSI Quad System for perimeter sealing. Standard 3mm (1/8 inch) annealed glass comes as the base configuration.
Testing and Certification
The certifications include:
- AAMA/WDMA/CSA 101/S.2/A440-11
- AAMA/WDMA/CSA 101/S.2/A440-08
- CSA A440S1-09 (Canadian Supplement)
- NFRC (National Fenestration Rating Council) Certified
- ASTM E 283 (Air)
- ASTM E 547 (Water)
- ASTM E 330 (Structural)
The NFRC certification matters for energy code compliance. The AAMA/WDMA/CSA harmonized standard covers structural performance. Together, they prove this window meets both energy and structural requirements for Climate Zone 6.
The Bottom Line
The Coeur d’Alene 1010 works for contractors who value consistent performance over flashy features. That 0.03 cfm/ft² infiltration rate translates to real energy savings. The LC-PG55 rating handles Montana wind loads with margin to spare. At 2¾ inches deep, it fits both new construction and retrofit applications without drama.
Applications include new residential construction, aluminum window replacement projects, light commercial applications, and large fixed openings for unobstructed views. The modest frame depth makes it particularly suited for replacing old aluminum frames without major wall surgery.
Warranty coverage includes limited lifetime on the vinyl frame and 10 years on insulated glass units. Coeur d’Alene backs it with what they call ‘no-nonsense’ warranty coverage.
FAQ
What size was tested for the LC-PG55 rating?
55 x 55 inches (1404 x 1404 mm). Smaller units typically test better, larger units worse. Size your expectations accordingly.
Can this window handle commercial projects?
Yes. The LC designation means Light Commercial, and it’s listed for light commercial applications. The PG55 rating provides adequate performance for most commercial scenarios below high-rise.
What’s the actual frame thickness?
2¾ inches (70mm). This depth accommodates ¾ inch (19mm) insulated glass units.
What fasteners does the manufacturer require?
#8 x 1 inch wood screws at 6.5 inch (170mm) spacing around the full perimeter. Don’t substitute or alter spacing — faulty installation is the primary reason for warranty service rejection.
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