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How to Build a Porch Roof for Your Screen Porch

How to Build a Porch Roof for Your Screen Porch

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January 17, 2007

Learn the simple steps of how to build a porch roof.

Learning how to build a porch roof for your screen porch is the final phase of your porch construction. The first thing you should look at is the roof pitch of your home and making sure your porch roof will match it. Matching the new roof with your existing roof is crucial to proper roof drainage and determining how you will bring the two roofs together.

For some people this aspect of building the porch roof is more crucial than others.  If you're the type of homeowner who is intent on having the transition between the two roofs appear seamless, then you may want to seriously consider having a professional come out to complete the job.  On the other hand if you're a particularly gifted do-it-yourselfer, you might want to try the construction out on your own and consult a contractor only if you aren't able to achieve the result you were aiming for. 

How to Build a Porch Roof

Framing a roof is not an easy job for a beginner but it can be done. Parts of the job will include cutting and fitting rafters. The best thing to do is to order prefabricated trusses. Put the end trusses even with the end wall's top plate. Brace the truss in place. Set all the other trusses working toward the house and brace them.

When learning how to build a porch roof you will find that once the trusses are set, it is best to take a string, run it from the peak of the truss nearest the house, and stretch it to the roofline peak. This is where the ridge board will be nailed to the porch roof. 

Getting the Right Results

Next a valley rafter should be run on each side from the ridge board to the porch truss. Secure the jack rafters with nails upright on the ridge board to the valley rafter on 16" centers. Some ends such as the rafters have to be mitered cut and compound mitered cut on the valley. Last, match the overhang measurements that are on the rest of the house.

Other things you should think about when learning how to build a porch roof are the lighting, electric, paint or stain options that you will need for the porch as well.  Consider also the material you'll want to use for your porch roof.  You might want it to match your existing roof, or you may want it altogether different to distinguish this new feature of your home. 

You can start your porch addition today by receiving free estimates from local contractors now! For more information on porch addition projects and other home remodeling tips check out more articles.

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