Roofing Cost Details and Estimates Rafter Calculator Rafter Length Calculator Run (horizontal length from the peak to the wall): Rise (vertical height from the peak to the wall): Results: Index of Roofing Cost Estimate Pages on Roof Online Asphalt Shingle Roof Cost Guide Cedar Shake & Shingle Roof Cost Guide Construction Costs by State EPDM Rubber Roof Cost Guide PVC Membrane Roof Cost Guide Slate Roof Cost Guide TPO Roof Cost Guide