
Aerial, oblique
The pass that shows how the roof sits on the building — planes, hips, valleys, and how it meets everything around it.
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Architectural shingle · Rockwall
A long ridge in warm grey, plus a detached workshop with its own roof and its own age.
System Architectural shingleProperty ResidentialViews 5
The five passes
A roof assessed from one angle is a roof assessed once. These are the passes every Jacob assessment makes, in this order, so that coverage does not depend on how the day is going.

The pass that shows how the roof sits on the building — planes, hips, valleys, and how it meets everything around it.

Straight down. This is the view that makes drainage legible and stops a plane being missed because it was awkward to reach.

What the property actually looks like to a person standing in front of it — the only view most quotes are based on.

Close enough to read the assembly: courses, seams, terminations, penetrations. Findings are photographed at this range with something for scale.
On this roof: a long ridge line with the cap shingles running away from the camera along it.

Mid-installation, where the parts that end up hidden are still visible. A roof is easiest to judge before it is finished.
What this roof raises
Every property puts its own questions in front of an assessor. These are the ones this system on this kind of house raises — and the same ones we would bring to yours.
A long ridge is a long run of cap shingles, and cap is the most handled material on a roof — lifted for vents, walked on, patched. Where somebody has been up here before, the ridge is usually where it shows.
An outbuilding is usually roofed at a different time from the house, and often in a different product. Whether the two should match is a decision worth making deliberately, and they rarely need the work at the same time.
Long eaves come with a long ridge, and they feed a gutter run carrying a lot of roof. Where the covering is sound and water still ends up at the wall, the gutter is the more likely explanation.
Book an assessment
Four steps, three things to type. We confirm the address is in our area, then come and look at the whole roof — not just the bit you pointed at.