How To Re Pitch A Flat Roof

This new roof with a higher pitch can be accomplished with premade roof trusses and typical asphalt shingles.

How to re pitch a flat roof.

Step 4 re sheath roof. Determine the roof span and pitch. 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.

Step 1 calculate the roof span. Depending on the climate your flat roof will only last between 15 and 30 years if well maintained. Step 5 replace roofing. 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.

Use prefabricated trusses to put a new pitch. The pitch of a roof is the angle at which it is built compared to the flat foundation of the house. Rooftops can be either flat or pitched at a variety of angles. Align the bottom so its parallel to the bottom length of the roof.

Install the new material. Use a pry bar to pull nails loose then remove them with a crow bar or. Take off shingles or other roof. Step 2 calculate material prices.

There is no common formula for pitching a roof in most locations homeowners can choose a pitch that works for them when remodeling or building a house from the ground up. Step 3 prepare the materials. Calculate how much the roof span is going to be by measuring from one top plate to the other top plate. How to make a flat roof have a pitch general steps step 1.

Tear off the old materials and apply roof sheathing. Lay down the square folded epdm material in the center of your flat roof. Remove rafters or trusses one at a time. Change the pitch on an existing sloped roof by removing the old roof and framing.

Flat roofs also don t last as long. Flip the topmost piece of the epdm material downward across the length of the roof. Adding pitch to a flat roof. If you used long lasting materials on your pitched roof you could expect it to last much longer.