Use a measuring tape to measure the length and width of your flat roof.
How to roof a flat roof with rolled roofing.
Most standard epdm membranes are 1 2 millimetres 0 047 in thick and 15 by 30 metres 49 by 98 ft max.
Place the top edge of the roofing along the chalk line.
For a flat or nearly flat roof use double coverage although a torch down modified bitumen or epdm roof is a better solution.
This should give you a 1 inch overhang on the eaves including the top edge.
Measure your roof and select an appropriately sized epdm membrane.
With rolled roofing particularly when you do the work yourself and have the assistance of a friend or helper you can get the rolls to the roof without a lot of effort or machinery.
How to install roll roofing on a flat or pitched roof with your own hands.
Working with a helper expect to spend half a day installing flashings and roll roofing for a 700 square foot roof with modest complications.
Pros and cons of roll roofing pros.
Typically a flat roof is a low sloping roof with a maximum 10 degrees of pitch or usually having a slope of up to 3 inches per linear foot for adequate drainage.
Installing peel and stick roll roofing on a flat roof requires a minimum slope of 1 2 inch per 12 inch roof run.
Most roofing contractors have to use equipment such as forklifts and other machinery to move shingles to a roof area.
Installation tips and guides.
Prepare the roof by tearing off the old shingles or by preparing for a reroof.
To apply rolled roofing you ll need your roof measurements a broom chalk to mark lines a razor blade to cut the material roofing cement nails and a hammer to hold down the material.