How to Built an Awning Over a Patio

Written by judi light hopson
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How to Built an Awning Over a Patio
(Thinkstock/Comstock/Getty Images)

Your family can use a patio more often with a nice awning. If you build a patio roof that is water tight, you can hold more activities in the area. Some families put media equipment in a patio area by constructing built-ins protected from the elements. Building an awning from scratch takes more time than ordering a factory-made metal awning, but you can design it to fit your family’s needs if you construct it from scratch.

Skill level:
Easy

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Things you need

  • Building permit
  • 2 by 12 lumber boards
  • Pre-made posts
  • Exterior grade plywood
  • Tar paper
  • Asphalt shingles
  • Hammer
  • Electric screwdriver
  • Stainless steel nails and screws
  • Hand saw
  • Round-blade electric saw
  • Building plan
  • Light fixtures
  • Electrical wiring
  • Paint or stain
  • Pre-made posts

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Instructions

  1. 1

    Measure the existing dimensions of your patio. Decide whether to expand the floor space area before you design an awning cover. Start to make sketches of the awning you envision. Go online to gain ideas for a wooden structure that will harmonise with the architecture of your house. You should sketch the roof line of the awning to slant at least 12 inches from top to bottom to allow for rain and snow drainage, according to experts at the National Association of Home Builders.

  2. 2

    Engage the help of a carpenter or builder to assess the weight of the awning. Obtain a building permit. You will need to buy support posts, support beams and framework in the proper dimensions. Buy support posts in dimensions your carpenter recommends. Posts should never be smaller than 4 inches by 4 inches square. Use salt-treated lumber.

  3. 3

    Remove fascia boards and some of the roof’s plywood sheathing to expose your home's rafters. Cut 2-by-12-inch boards to create new support rafters for the patio awning. Start to nail this framework to the rafters of your home for maximum stability. Have large plastic sheets on hand in case of rain. Use the plastic sheets overnight as you work. Construct the roofline of the patio awning and nail temporary support posts in place to hold up the structure. Frame the patio cover to prepare for adding the roofing materials. Install wooden support posts that hold up the awning.

  4. 4

    Install plywood sheathing on the awning’s roof. Use metal flashing and tar compound to seal the seams where the awning roof joins your home’s roof. Cover with tar paper and install shingles over the new awning roof. Enclose the awning roof in soffit areas. Paint or stain all wood surfaces.

Tips and warnings

  • A wooden awning can be built over a patio made from wood strips without a covered roof. The awning serves as a wooden shade that will protect from excessive sun but not rain. This type of awning should ideally be built of cedar lumber.
  • Any type of awning with wooden framework must be secured to the home’s roof if it is not built in a free-standing fashion. An awning of any type is very heavy and can fall on someone or do a lot of damage if blown down by strong winds.

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