About

What the site is for

Roofing is priced in units most homeowners have never used: squares, bundles, pitch multipliers and waste factors. The calculators here turn the measurements you can take yourself into those units, and the cost guides explain what those units typically cost across the country. The aim is that you walk into a contractor conversation knowing roughly how big your roof is, how much material it needs and what a fair range looks like.

Who it serves

US homeowners pricing a replacement, a repair or a new build. Contractors and estimators are welcome to use the calculators, but the explanations are written for someone doing this for the first time.

What it does not do

• It is not a roofing contractor and does not install, inspect or repair roofs.
• It does not give quotes. Every cost figure on the site is a national estimate built from public data. Your price will depend on your location, your roof and the contractor you choose.
• It does not have field roofing experience behind it. The numbers are researched from public sources, and the methodology page lists exactly which ones and how often they are checked.

What is on the site

The pages fall into three groups, and each group has its own index:

• Calculators for the measurements: pitch, roof area, squares and bundles, squares to bundles, nails, and cost calculators for a replacement and for metal.
• Cost guides for what the work costs: replacement, asphalt shingles, metal, tile, repairs and flat roofs, plus Florida, Texas and California.
• Guides for the questions around the job: whether the roof needs replacing, how long a roof lasts, what homeowners insurance covers and what a shingle warranty covers. Each one has a small tool.

How a page gets published

The same rules apply to every page, and they are the reason the site looks different from most roofing cost content:

• Every dollar figure traces to a named public source. If a figure cannot be traced, it does not go on the page.
• The formula is printed next to the result. Calculators are plain arithmetic, shown in full, so you can repeat the working by hand or spot an error in it.
• Rounding is consistent and disclosed: totals to the nearest $100, per-square figures to the nearest $5.
• Gaps are stated rather than filled. Where no citable figure exists, the page says so and explains what is missing instead of estimating a number to look complete.
• Pages carry a review date. Every cost guide and guide shows when it was last reviewed against its sources.

Cost ranges come from manufacturer product data, retail material pricing, federal wage statistics, insurance regulators and published contractor cost surveys. The full list, with links, is on the methodology page.

How the site pays for itself

At the moment it does not. There are no display ads, no sponsored posts and no paid placement in any ranking or recommendation on this site. There are no quote request forms on the site at the moment either. The intention is to earn from connecting homeowners with roofers, and from advertising, in future. When that happens it will be said plainly here and in the privacy policy, and it will not change how a figure is researched or which material a guide recommends.

Corrections

Numbers change and sources get updated, so mistakes are a question of when. If a figure here does not match the source it cites, or a calculator returns something that looks wrong, tell us with the page and the numbers involved. Corrections are treated as the most important mail this site gets.