Residential Roof Deck Drawings
Many porches use 22 diameter corner and intermediate.
Residential roof deck drawings. Consider including an ice and water barrier too. This article discusses rooftop deck construction details to avoid building leaks or rooftop deck safety hazards. If you choose to add a roof to an existing deck you may need to add additional supports so it can hold the weight of the roof. Many building departments require a local architect or engineer to design plans for porch roofs because of the increased snow roof and wind loads created by adding a roof.
Porch decks require 25 additional psf for roof loads for a total of 80 psf. The footings for porch decks must be larger than deck footings. Adding a roof to your deck is best done as the deck is being built. Some key details for a leakproof rooftop deck are.
Post base connectors. Any use of any plan on this website is at your own risk. Consumer and builder accept all responsibility and liability for all aspects of the use of any plan found on this website. Typical decks are designed to support 55 psf lbs per square foot.
We include walk on roof surfaces roofing membrane to use below a rooftop deck and construction of rooftop deck railings and posts. The most common approach is to use a heavy gauge epdm membrane typically 60 mil as the roofing membrane usually placed over rigid insulation. As a result most decks have inadequate footings to support a new porch roof. The most common styles are gable hip and shed.
The drainage system flashing details and waterproofing membrane that go over the structural deck are the key to success.