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Category: uPVC Windows


Large bow window. Window furniture. Three Counties glazing.

Are uPVC Frames Fireproof?

Discover the fire resistance level of uPVC frames and how they offer protection. Learn more from Three Counties, the experts in uPVC and glazing.

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Three Counties example of non-equal sightlines in windows

Non-equal Sightlines and Unique Window Designs

Non-equal sightlines refer to the condition where the glass areas or frames of windows are different in size or shape. They are usually formed when one window features an opening, while others are fixed.

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