325 ES-I ENERGY SENTRY

Energy Efficient & Maximized Thermal Commercial Aluminum Window System

Advanced Insulation for Superior Energy Efficiency

The 325 ES-I Energy Sentry Window represents the pinnacle of thermal performance for commercial aluminum window systems. Engineered with advanced insulating properties, this AW-Rated, thermally broken system is designed to maximize energy savings and provide exceptional comfort in any commercial environment.

Key Features & Benefits

Maximum Energy Efficiency: Our advanced insulation technology creates a superior thermal barrier, dramatically reducing heat transfer and leading to a more stable indoor temperature and lower energy costs.
Built for Lasting Strength: This window is constructed with reinforced components and high-grade materials, ensuring it provides dependable, long-term performance and durability.
Condensation-Free Views: An outstanding design helps to prevent condensation on both the frame and glass, keeping your views clear and your indoor environment more comfortable.
Flexible Glazing Options: Accommodates 1" glass or panel, or 2-1/2" insulated panel, providing adaptable solutions for various project needs. The glass and panel options allow flexibility to achieve a better overall U-Value.
Optional Integrated Features: Available with integral 5/8" mini-blinds with hinged blind access panel and sliding wicket screens for enhanced convenience and light control.
Proven Quality: Backed by rigorous testing and a ten-year guarantee, this window is a reliable investment that meets the highest performance standards for air, water, and security.
Durable Finishes: Available in Class I Clear Anodized (AA-M12-C22-A41), Class I Dark Bronze Anodized (2-step AA-M12-C22-A44), and Bone White Kynar (2-Coat 70% AAMA 2605).

Custom Solutions To Meet Your Needs

Custom arrangements and accessory integrations to meet aesthetic, functional, and performance requirements.

Capitol Aluminum 325 ES-I Window Configuration Examples.png

Frame Finish
Color Selections

Custom finishes available upon request.

Technical Specifications
Window Model	325 ES-I
Frame Depth	3-1/4"
Typical Wall Thickness	Vent = .125" / Frame .080"
Insulated Panel Thickness Capacity	2-1/2" or 1"
Insulated Glass Thickness Capacity	1"
Air Infiltration Test	<0.01 cfm/ft² @ 6.24 psf (50 mph)
Water Resistance Test	No leakage @ 15.0 psf
Condensation Resistance Factor	69 (frame), 68 (glass) *varies
Thermal Performance (U-Value)	0.27 - 0.60 *varies
AW Performance Class	PG90
Forced Entry Resistance	Grade 10
Sound Transmission	STC 45 / OITC 38 *varies
Aluminum Alloy	6063-T5 or 6063-T6
Thermal Barrier Material	Two 34mm reinforced polyamide nylon strips
Sash Type	Overlap

*Note: May vary based on glass make-up or infill type.

At Capitol Aluminum & Glass Corp., we are committed to delivering top-tier architectural products. The Capitol 325ES-I Energy Sentry Aluminum Window System reflects our dedication to quality, performance, and client satisfaction, providing a reliable and energy-efficient solution for your commercial window needs.

For detailed specifications, project-specific inquiries, or to request a quote, please contact us directly. Call (419) 483-7050 to speak with Project Specialist.