MATERIAL PREPARATION LIBRARY
Roof covering and edge supplies.
Choose the actual material and supply form. Each sheet identifies what to measure, which product data to collect and a purchase assumption to check.
Roof covering units
Measure each actual roof plane on its sloping surface.
Prepare this material →Roof ridge cap pieces
Measure the specified ridge runs and separate any distinct end products.
Prepare this material →Roof underlay rolls
Measure the selected roof planes and record the supplied strip direction.
Prepare this material →Gutter stock
List separate measured straight runs and supplied joint details.
Prepare this material →Soffit sheet strips
Measure every supplied strip width and finished run length.
Prepare this material →Fascia board stock
Measure separate board runs, including already specified end shapes.
Prepare this material →How these quantities differ
| Material | Selected product data | Ordering mistake to avoid |
|---|---|---|
| Roof covering units | Effective coverage per selected unit or pack. | A horizontal footprint is smaller than the surface of a sloped plane. |
| Roof ridge cap pieces | Nominal cap length and the supplied overlap or effective coverage. | Nominal stock length is not installed coverage when every cap overlaps the next. |
| Roof underlay rolls | Roll dimensions, selected side laps and end laps. | A roof-area figure without seam geometry cannot determine whole roll order. |
| Gutter stock | Stock length, prescribed overlap and any unusable end allowance. | Total roof area does not establish gutter length or drainage capacity. |
| Soffit sheet strips | Sheet width and length, cut gap and permitted grain direction. | Net soffit area may fit poorly when full strips must be cut in one direction. |
| Fascia board stock | Actual section, stock length and supplied cutting allowances. | One total perimeter hides run-by-run stock fit and any narrow exposed finish faces. |
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