How to Convert a Pergola Into a Roof

Written by kelly gray
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How to Convert a Pergola Into a Roof
A pergola can stand alone or be attached to a building. (pergola image by Andrea Todeschini from

Pergolas are good outdoor structures, but because of the lattice roof, they offer little cover from rain, sunlight and other weather elements. Adding a roof to a pergola is doable without too much difficulty. With so many options for a roof available, the most challenging part could be choosing the material that is best for the space and use.

Skill level:

Things you need

  • Roof panels
  • Screws
  • Circular or table saw
  • Power drill

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  1. 1

    Choose the material of the roof panels. A variety of options are available including PVC, wood, fibreglass and polycarbonate.

  2. 2

    Measure the square footage of the pergola top. Purchase enough roof panels to cover the area.

  3. 3

    Cut the panels to the pergola's length. Add 3 inches on the top and bottom to allow for a slight overhang.

  4. 4

    Attach the panels one at a time using screws. Start on the left side and work your way across the roof. By doing so, it will ensure that the panels line up. The panels should overlap each other slightly.

Tips and warnings

  • Check with the local city's codes department before adding the roof. The addition of the roof might turn the pergola into a porch, and therefore you could owe more property taxes to the city or county.
  • Make sure the screws are not too long because they could come through the beams.
  • Fibreglass panels will break in hail storms.

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