How To Re Pitch A Flat Roof

Change the pitch on an existing sloped roof by removing the old roof and framing.

How to re pitch a flat roof.

Rooftops can be either flat or pitched at a variety of angles. Step 5 replace roofing. Tear off the old materials and apply roof sheathing. How to make a flat roof have a pitch general steps step 1.

Flat roofs also don t last as long. Lay down the square folded epdm material in the center of your flat roof. Step 2 calculate material prices. Determine the roof span and pitch.

The process for converting a flat roof into a pitched roof depends on your individual structure and your individual needs there is no one size fits all option. Take off shingles or other roof. Some will choose to keep their pre existing flat roof on their structure underneath the new pitched roof to save removal costs but others might not be able to consider that option. 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.

Open the epdm square vertically along the length of the roof. Calculate how much the roof span is going to be by measuring from one top plate to the other top plate. Adding pitch to a flat roof. Use prefabricated trusses to put a new pitch.

This new roof with a higher pitch can be accomplished with premade roof trusses and typical asphalt shingles. However flat roofs require much more aggressive and consistent maintenance than a pitched roof. Step 3 prepare the materials. Step 1 calculate the roof span.

Step 4 re sheath roof. The traditional metal roof types such as 5v crimp shown above and corrugated are rated by the manufacturers for use down to a 3 12 pitch three inches of vertical rise for every foot of horizontal run. Install the new material. If you used long lasting materials on your pitched roof you could expect it to last much longer.

Depending on the climate your flat roof will only last between 15 and 30 years if well maintained. Remove rafters or trusses one at a time. The pitch of a roof is the angle at which it is built compared to the flat foundation of the house. Align the bottom so its parallel to the bottom length of the roof.