Roof planning

Good, Better, Best roof estimates: compare the whole scope

Aerial area is one input. Learn how roof-system choices, measurement assumptions, and field verification fit into an Axis Roofing planning estimate.

October 12, 2026Axis Roofing4 min read
Axis field photography
01

Measure first—but understand the limits

The Axis Roofing estimator starts with a geocoder-confirmed property address and a manually traced roof outline on Google aerial imagery. It calculates plan area, applies the selected pitch factor, and includes the fixed 5% planning waste allowance. Imagery cannot establish every roof plane, roof layer, structural condition, or installation detail. A plausible outline is a planning input, not an onsite inspection.

02

Choose the actual roof system

The estimator treats asphalt shingles, standing-seam metal, stone-coated steel, concrete/clay tile, and TPO/PVC commercial membranes as separate roof systems. Different assemblies require different details and pricing. A photo-based material choice is provisional until verified at the property. Low-slope membranes also need drainage, edge, penetration, insulation, and attachment context.

03

Good, Better, and Best must be defined

Useful package comparisons explain the proposed assembly, included work, allowances, exclusions, and applicable warranty terms. The package labels alone do not establish a product quality, lifespan, or manufacturer guarantee. Axis uses system-specific owner-approved package terms and rate cards; dollar estimates remain unavailable for a system unless its complete approved pricing is activated.

  • Compare the same measurement assumptions across the options.
  • Read material and assembly descriptions, not just package names.
  • Confirm tear-off, decking, ventilation, drainage, and related work.
  • Ask how exclusions and allowances will be resolved after inspection.
04

Turn a planning estimate into a confirmed scope

Field verification checks the roof system, quantities, pitch, layers, access, hidden conditions, and project requirements. Those findings can change the scope and price. The branded proposal is a nonbinding planning estimate; final work and pricing require verified conditions and a signed agreement. Private contractor cost data and internal notes are not part of the customer proposal.

05

Make the comparison useful

NRCA advises property owners to insist on a written proposal with complete work descriptions and specifications, and notes that price is only one contractor-selection criterion. Keep the estimate with your inspection record and ask for clarification wherever the scope is unclear. You can start with the aerial tool or request an inspection instead.

Next step

Start with a documented roof inspection.

Share the property and project concern. Axis Roofing will follow up to coordinate the inspection.