Open Beam Metal Porch Roof

Maximum rafter spans for a patio roof in areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot.

Open beam metal porch roof.

The aluminum will require minimal maintenance and upkeep while also being quite durable. The open design of this patio is the definition of bringing the outdoors in. After that to make it flush with the roof of the existing house cut the two outer rafters. The sheets of metal are strong enough to provide you with lasting protection from the natural elements.

Patio roof beams beams can be solid lumber or be built from lengths of 2 by lumber nailed together with 1 2 inch pressure treated plywood spacers in between this forms a 3 1 2 inch thick beam that is equal to the width of a 4 by post. You pick the hardware package. After the beams are in place check to see if the posts are plumb using a level. If they need to be adjusted install a 2 4 brace from the bottom of one post to the top of an opposite post check for plumb again and nail it in place.

Here we have a wood framed gable roof. You have to do it thoroughly so that the rafters sit flush on it. Install the short beams the same way as the longer beams. Let s consider a basic gable wood roof framing design.

If our example roof has only one beam it must carry half of the total load or 4 000 pounds. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. A metal patio roof is easy to install and one of the more affordable options you have. If one side of the roof is supported by the house and the other side is supported by the beam divide the total load by two as the beam is only supporting half of the roof.

Attach the horizontal beam by using a nail gun. If there is also a beam in the middle of the roof divide the total load by three. By simply opening or closing the large sliding glass doors this space is instantly transformed from indoor to outdoor. You pick the size and type of posts ranging from a 4 4 up to a 6 6 or recessed square or tapered columns.

These are fastened with just one steel rod. Floor beam span tables of residential structural design we will now look at roof rafter and beam design. A portion of the ceiling features a skylight divided by exposed beams allowing natural light to pour in from above. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements.