Terms of Use

Using the estimator

Roof Replacement Cost Estimator provides planning arithmetic and roof decision guides. A result is a range for its stated inputs and source scope.

Inputs and unknown work

You need a roof surface measurement or a valid equal-pitch footprint basis. Living area is not a substitute for roof area. User-entered rates and ordering allowances remain user assumptions. A published national rate may not apply to another location or assembly. Unpriced work stays outside the known subtotal and can affect an actual project price.

Keep the source, date, material and inclusions beside every rate. Do not add labor, removal or disposal again if they are already included in a package. Its print view preserves the assumptions for you to review.

Safety and external sources

Use existing records and safe ground-level observations. Do not climb onto a roof, disturb suspect materials or enter an unsafe attic to complete a worksheet. A visible defect needs an assessment appropriate to its cause and extent. Keep clear of areas with an immediate hazard.

Product and workmanship terms need to be read in their own documents.

Corrections and updates

The method and sources states version, checks and limits. Content checked October 14, 2026. Use Contact and Corrections to identify a factual or arithmetic error. Do not submit private records that a correction does not need. See privacy for correspondence handling or return to the estimator.