Green Lodging News carried a Hope's Windows item on 22 October 2026. The item restates the SlightLine175 series. Hope's introduced the series in August 2025.
The series carries a 2-inch mullion sightline. Fixed units measure 1-7/16 inches at the sightline. Operable units measure 2-3/16 inches. The gap between the two is three quarters of an inch.
The mullion is a fin-shaped hot-rolled steel profile. A polyimide thermal extrusion sits inside it. The series pairs the Landmark175 and Jamestown175 profiles, so operable windows and doors match the fixed units on one facade.
Hope's builds the units in Jamestown, New York. Thermal Evolution is the thermal break upgrade on the same profile. Power of 5 is the company's finishing process for coastal sites.
Hope's lists four tested categories: wind load, impact, air infiltration and water penetration. The product page publishes no U-value, no solar heat gain coefficient and no acoustic rating. The download block read "coming soon" on 8 November 2026.
A hotel envelope submission asks for U-value, solar heat gain and acoustic rating.
A guest-floor facade can mix fixed and operable units. The 1-7/16 inch figure applies to the fixed bays. Each operable unit adds three quarters of an inch to the sightline at that bay.