The roofs have thermal insulation ratings up to R-20. Side screens, known as zip screens, made of polycarbonate or safety glass, are also options to provide shielding from cold winds.

This pergola trades the canvas shade for a hardtop polycarbonate that won’t get weighed down with water or debris. It has a weight limit of 176 pounds so it can handle heavy snow if you want to ...

While pergolas are great, they're not as functional as patio covers. Kevin King told me that 'Because pergolas do not have a closed-off roof, they do not give protection from rain, snow, or other ...

If you want more shade, you can place a solid roof over the top of the pergola's roof slats. Options include glass, bamboo thatch, fabric, and polycarbonate patio roofs that can create a backyard ...

Lightweight fixed polycarbonate roofing allows UV filtered sunlight to pass through. You get filtered natural sunlight, but cooler temperatures under the cover of your pergola.