How To Slope Existing Roof

Calculating roof slope is done by calculating the number of inches your roof slope rises vertically for every 12 inches it extends horizontally.

How to slope existing roof.

Rather than a single slope a gable roof consists of two slopes that meet at a peak running down the middle of the roof. Here are a few methods to easily find the roof slope on your existing shed. Now measure vertically from the 12 inch mark on the level straight up to the underside of the rafter as illustrated. Replacing a roof can be expensive but if a roof contains only a small slope it s possible to raise the roof pitch of a house by building a roof over the old one.

Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. How to join into a sloped roof. However laying out the framing of the. Pitching a flat roof can let you add an attic or second floor with slanted ceilings.

Working from the interior side of the roof you ll need access to a roof rafter to measure the pitch. This new roof with a higher pitch can be accomplished with premade roof trusses and typical asphalt shingles. Where new construction meets an existing sloped roof the geometry of the roof framing can be a daunting mathematical puzzle. Attaching girder truss existing roof building attaching girder truss existing roof building 17.

Tying patio roof into existing house carpentry tying patio roof into existing house carpentry 18. Go on your roof and put one corner of the level on your roof then bring it up so it is level with the earth. If you prefer the look of shingles over tar a pitched roof may also be an option for you. Attaching near the eaves the.

A flat roof can often have pooling water that can lead to leaks. For example if your roof rises 7 inches for every 12 inches of horizontal run then your roof has a 7 in 12 pitch. If you need to find the pitch of an existing roof all you need is a level and a tape measure. Attach patio roof existing house 15.

The standard pitch of most residential roofs ranges between 4 in 12 and 9 in 12. When matched to the angle and proportions of other rooflines on the house your gable roof will add visual interest and character to the home making the addition look like an asset that belongs with the house. Things can green your existing roof general. First measure 12 inches from one end of the level and make a mark.

Place the level horizontally along the rafter until it contacts the roof sheathing avoiding any protruding roof nails. Attaching patio cover existing roof attaching patio cover existing roof 16. Also the appearance of a flat roof may not be desirable for a residential home.