Water-management workflow
Upgrade Roof Drainage
Connect roof measurements to gutter inventory and ground-level drainage work. The workflow helps prevent a complete-looking gutter list from sending water to an unplanned discharge point.
Before you calculate
- Observe where water flows during rain and identify erosion, settlement, foundation, or icing concerns.
- Confirm rainfall intensity, roof geometry, legal discharge, underground utilities, and local requirements.
- Inspect fascia, roof edge, flashing, soffit, and access conditions before ordering.
Use in order
Connected calculator workflow
- 1
Verify roof geometry and drainage area
Use roof dimensions and slope as a measurement cross-check before sizing eave runs and drainage areas.
Checkpoint: Complex roofs need each contributing plane assigned to the correct gutter and outlet.Open Roofing Calculator → - 2
Build the gutter and downspout inventory
Estimate gutter pieces, seams, hangers, corners, caps, outlets, downspouts, elbows, straps, extensions, sealant, screws, and cost.
Checkpoint: Confirm hydraulic sizing from local rainfall, roof geometry, approved design guidance, and manufacturer data.Open Gutter & Downspout Calculator → - 3
Plan splash, swale, or surface drainage materials
Estimate gravel, soil, fabric, edging, bags, tons, and delivery for approved discharge improvements.
Checkpoint: Do not direct runoff onto neighboring property, unstable slopes, septic systems, or foundations.Open Landscape Materials Calculator → - 4
Estimate buried drainage excavation
Plan trench volume, spoil hauling, backfill, truck loads, fabric, and cost if the approved solution includes buried piping.
Checkpoint: Locate utilities and verify pipe, slope, outlet, bedding, cleanouts, and trench safety separately.Open Excavation & Fill Calculator →
Supporting calculators for this project
Use these focused tools when the project scope includes the matching material or decision. They supplement the ordered workflow rather than replacing its checkpoints.