SlightLine175™ Series
The SlightLine175™ Series represents a leap forward in modern architectural design. By minimizing sightlines and maximizing glass area, architects can push the boundaries of contemporary aesthetics while maintaining structural integrity and performance.
Combining Hope’s true hot-rolled steel profiles with a robust fin-like mullion, the SlightLine175™ Series windows and doors are meticulously handcrafted by skilled artisans in Hope’s Jamestown, NY manufacturing facilities. This ensures the unparalleled quality, design precision, and attention to detail that has been the hallmark of Hope’s for over a century.
- Rigid mullion component engineered to reduce bulk and sightlines.
- Allows architects and designers to create expansive glass facades without compromising structural integrity.
- Innovative polyimide thermal extrusion with solid hot-rolled steel mullions.
- Offers distinct shadow lines that minimally join window and door frames for a sleek, modern aesthetic.
- Adds sophistication to the overall design, perfectly balancing form and function.
- Combines the benefits of Landmark175™ Series and Jamestown175™ Series profiles for operable windows and door.

Sightlines
Mullion Siteline 2”
Fixed Sightline: 1-7/16”
Operable Sightline: 2-3/16″
Section Depth: 1-3/4″
Available Enhancements:
Thermal Evolution
Product Performance
- Thermal Evolution Technology: Advanced thermal break technology ensures superior energy efficiency without sacrificing the slim profile.
- Product Testing & Performance: Rigorous testing guarantees that the SlightLine175™ Series meets or exceeds industry standards for wind load resistance, impact performance, air infiltration, and water penetration.
- Power of 5 Finishing System: Hope’s proprietary finishing process provides unparalleled protection and longevity, especially in coastal environments.
Product Downloads
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Our Products By Style:
Thermal Evolution™ technology Can Be Applied to Landmark175™ Series Products
Our products can be engineered to solve any challenge. Every window and door we craft is custom – from the shape and function to the aesthetic, size and glass.
Contact our team members if you would like to discuss your needs and options.
Profile Positions
Please refer to these diagrams to help you reference position when viewing the the product profiles below.

FIXED WINDOW

CASEMENT WINDOW –
RIGHT HUNG-OUT (OPERABLE)

CASEMENT WINDOW –
LEFT HUNG-OUT (OPERABLE)

PROJECTED WINDOW
(OPERABLE)

5 OPERABLE PROFILE

6 OPERABLE PROFILE

7 OPERABLE PROFILE

8 OPERABLE PROFILE

4 FIXED / 9 & 10 OPERABLE PROFILES

3 OPERABLE PROFILE
