Sloped Porch Roof Framing

Hip roofs allow for extended depth.

Sloped porch roof framing.

The house roof sloped 5 in. This sizing guide for roof rafters will help determine what you need for your small project. Q a calculating loads on sloped roofs four engineers shed light on common framing mysteries myths misconceptions by christopher deblois scott mcvicker login or register to download the pdf version of this. 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. These illustrations above show the plans for the screened in porch deck framing gable framing ledger truss block side walls and the end wall. Per foot this is called a 5 12 slope and extended 18 in. After installing the rafters we still had to extend the porch roof back over the shed roof creating a valley on either side.

The shed roof or lean to is a roof having only one slope or pitch. Hip roofs are sloped from each wall and do not have the gable ends. 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. To a large extent they are self bracing with opposite ends pushing inwards so they are strong in relation to wind forces.

More project and tips. Calculating loads on sloped roofs framing. There are several variables to consider when determining the proper rafter size. à explore the differences in enclosure design and ventilation requirements for roofs with attic insulation vs.

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. Weather you re building a shed roof or adding a dormer to your second story it is important to choose the proper size rafter. Pitch is the amount of angle or slope the roof has. Your roof may vary from this and the details of how the porch ties in will vary as well.

Blind valleys simplify framing. Frame assembly affect moisture presence movement and evaporation. As you can see the truss angles are constructed to maintain the same slope. It has been too co.

A framing square is traditionally used for laying out the roof and determining pitch. Continuous insulation on top of the deck. Next soffit framing is installed along the roofs edge.