Sloped Porch Roof Framing

This is denoted two ways a 1 3 or 1 4 pitch in fractions and a 6 12 pitch in inches which means the roof rises 6 inches for each 12 inches of run.

Sloped porch roof framing.

Hip roof construction is one of the most popular methods used for both porch and screen porches. When building a porch roof with trusses on this type porch the corner and subsequent trusses are built a little differently due to the slope of the roof. There are several variables to consider when determining the proper rafter size. Hip roofs allow for extended depth.

Continuous insulation on top of the deck. Hip roofs are sloped from each wall and do not have the gable ends. These illustrations above show the plans for the screened in porch deck framing gable framing ledger truss block side walls and the end wall. The house roof sloped 5 in.

Blind valleys simplify framing. Calculating loads on sloped roofs framing. This sizing guide for roof rafters will help determine what you need for your small project. As you can see the truss angles are constructed to maintain the same slope.

After installing the rafters we still had to extend the porch roof back over the shed roof creating a valley on either side. To keep the porch roof framing as simple as possible we installed a structural ridge supported by posts at each end with the common rafters landing on top of the ridge. More project and tips. à explore the differences in enclosure design and ventilation requirements for roofs with attic insulation vs.

Next soffit framing is installed along the roofs edge. Pitch is the amount of angle or slope the roof has. A framing square is traditionally used for laying out the roof and determining pitch. To a large extent they are self bracing with opposite ends pushing inwards so they are strong in relation to wind forces.

Frame assembly affect moisture presence movement and evaporation. The roof is held up by walls or posts where one wall or the posts on one side are at a higher level than those on the opposite side. It has been too co. Weather you re building a shed roof or adding a dormer to your second story it is important to choose the proper size rafter.

à highlight detailing best practices for vented low slope roofs to avoid moisture traps and ensure material longevity. It is used where large buildings are framed under one roof where hasty or temporary construction is needed and where sheds or additions are erected. Your roof may vary from this and the details of how the porch ties in will vary as well.