Any roofers out nearby? help! my flat roof needs to be done. It...
help! my flat roof needs to be done. It measures 12ft W X 30 ft L.how may roll of double coverage would it purloin to do it??
Answers: You have almost 4 squares. If it has to tie surrounded by to a shingle roof, then get five squares.
Notes to do the position right .
1. Be sure to completely remove the old roof - a must !
2. Make sure the substrate is dry and solid.
3. How flat is "flat" ?? That replacement roof won't last unless within is a slope to provide positive drainage of water off the surface. Don't allow ponding of river on the surface. Tappered foam insulation is available that will provide and/or improve on the amount of roof slope.