Underlayment & Fasteners: Net Roll Coverage with Laps, Strip Rolls and Nail Boxes
This lesson is part of the course
In this lesson
You work out how much one underlayment roll really covers once the laps are taken off, then count rolls, self-adhesive strip rolls and nail boxes, always rounding up.
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Lessons in this course
- Roof Pitch: Rise over Run, Angles with ATAN and the Pitch Multiplier Locked
- True Roof Area: Plan Area × Pitch Multiplier, Squares and Square Metres Locked
- Waste Factors & Bundles: Complexity Lookup, Exact Bundles and the Order Locked
- Ridges, Hips, Valleys, Eaves & Rakes: Line Factors, Ridge Cap and Drip Edge Locked
- Underlayment & Fasteners: Net Roll Coverage with Laps, Strip Rolls and Nail Boxes Locked
- Tear-Off: Layers × Weight per Square, Tonnes, Containers and Disposal Cost Locked
- Gutters & Downspouts: Drained Area, Flow in L/s, Outlets and Gutter Fall Locked
- The Roof Quote: Pitch Difficulty, Labour per Square, Overhead, Margin & a Cost Chart Locked