How To Repair An Exising Roof Top Porch

Miter joints shown at top and herringbone joints bottom.

How to repair an exising roof top porch.

Faux stone concrete piers were still plumb and in good condition there was a concrete support at the termination of the stairs and the porch roof and ceiling were sound thanks to shingles that had been maintained through the years. Repairing porch corners on a porch with changes of direction for example on a verandah that turns a corner and continues on a second side of the house cut the boards where they meet along a diagonal. It s not really flat. Here s what to do.

After that to make it flush with the roof of the existing house cut the two outer rafters. This wooden deck was built over her screen porch and on top of a flat roof. Draw a line around the column about 2 inches above the rotted area and install a temporary brace under the deck porch or roof. However this calculation can vary depending upon what you plan on.

As expected once the framing beneath the porch was exposed the men discovered that it was completely shot. Brace the existing porch roof if necessary. However they found some good news too. If built properly the porch structure is substantial enough to support outdoor living space above so why not take advantage of it and build a rooftop deck.

You have to do it thoroughly so that the rafters sit flush on it. Attach the horizontal beam by using a nail gun. In decking over a roof fhb 246 emanuel silva shows how to build such a structure. It s pitched 1 4 inch per foot but without a spirit level you can t really tell.

Here i show how to get the design right. Repeat this procedure so that all the columns look exactly the same and have the same dimensions. To safely install a roof deck the roof needs to be able to support about 55 pounds of weight per square foot in general. Years of neglect and lack of gutter coverage above the deck had destroyed not only the deck but a window and the sidewall as well.

Make a cutting on one of the sides of the horizontal roof beam on an angle. Installation requires existing deck posts or walls for attaching the screen frames. There are two classic join patterns.