The substance found in the making of the rainproof cover for pergola will even establish the time of the shade. Specially since some material is naturally more durable than other material. Obviously, that doesn't suggests the other material isn't durable. But you might need to incorporate other items to produce that product to be as durable as one other one. Hence you could look at this as it might affect the price tag on the material.
Around the shade is resilient, you however should do some preservation to keep it keep whole and function properly. Even easy maintenance such as washing is also required to be done every after in a while. So you need to decide on rainproof cover for pergola that's an easy task to maintenance and do not require special therapy just to keep it purpose properly. If you're really busy, then you could also need to think about how often you need to do the maintenance so it will always be in the very best issue possible.