There’s more to consider than cost alone when choosing pergola roof materials. You also need to consider how well they will stand up to the elements and whether they match the rest of your pergola, your home and your landscaping.
Pergolas can have conventional roofs similar to a house, including tiles, but most pergolas today are made with low to moderately priced roofing materials designed specifically for pergolas, patios and other structures that don’t have ceilings to conceal the underside of the roof.
A few of the most popular materials include:
Polycarbonate roofing
Polycarbonate roofing can be as clear as glass, opaque or block light completely. A drawback to this type of pergola roofing in the past was that they overheated in the sun and were noisy in the rain, but today noise-dampening and insulated polycarbonate roofing can keep your pergola comfortable even on hot and rainy days.
Of the solid pergola roofing materials, polycarbonate is generally the least expensive. It comes in standard sizes, with 2.4 metre lengths costing from $38 and 3 metre lengths from $68.
Colorbond and zincalume roofing
Colorbond and zincalume are popular metal roofing materials for pergolas, patios and homes. They come in a range of colours and can be flat or curved. Both options can be powder coated, though Colorbond can be powder coated on both sides. This can make it as attractive from inside the pergola as on the outside.
Single sided Colorbond and zincalume roofing cost around $18 per metre. Double sided Colorbond costs around $24 per metre.
Thatch roofing
A budget option for a rustic pergola, thatch roofing can be bought for between $14 and $22.50 per sheet, depending on the size and shape. These roofs are an eco-friendly option for shading a pergola, but they will need to be replaced after several years and can be a fire risk.
Shade sails
Shade cloth or a shade sail is a popular alternative to a fixed pergola roof. Shade sails can be very inexpensive, starting at under $150 for a 3 metre x 5 metre rectangular sail.
If you’re considering a shade sail, pick the sail before you build your pergola. Ideally, a shade sail should be hung between posts that are firmly cemented into the ground.