Calculators for sheet metal and the building envelope
Calculators that run in your browser - nothing is sent anywhere until you ask AFS for a quote. Each result says what it is, how it was calculated and what it does not cover.
New to the calculators? Every one has a short how-to video.
Press the red play button on any calculator below, or watch them all in one place.
Flashing Profile & Bend Development
Legs, bends and hems to a blank width, bend schedule, weight and an AFS fabrication check.
Material Takeoff & Nesting
Pieces into 10 ft strips and 48 in sheets, utilization and weight, ready to send to AFS.
Roof Edge, Coping & Fascia
Edge runs, corners and terminations to pieces, joints, end caps and cleat length.
Thermal Movement & Compatibility
Expansion and contraction of a run between metal temperature extremes, and dissimilar-metal screening.
Roof Drainage Flow Screening
Design flow from area and a sourced rainfall intensity, per outlet. Preliminary.
Wind Uplift & Edge Screening
ASCE 7-16 edge pressures for comparison with ES-1 tested capacity. Preliminary.
Wall & Roof Assembly R-Value, U-Factor & Dew Point
Total R and U-factor of a layered assembly, interface temperatures and a steady-state dew-point screen. Preliminary.
Cladding Panel Layout & Opening Flashing
Balanced panel layouts, expansion-joint counts from thermal movement, and flashing cut lists for openings.
Roof Pitch, Area, Hip/Valley & Panel Coverage
Pitch in x:12, degrees and percent; sloped area, rafter and hip/valley lengths; standing-seam panel count and length.
Geometry, Slope & Unit Conversion
Exact unit conversion, right triangles, slope, a 1:12 ramp check and tolerance stack-up.
Occupant Load, Egress & Accessibility Screening
Occupant load, egress width and exit count from the factors you enter from your adopted code, plus a ramp slope check. Preliminary - not a code determination.
Embodied Carbon, Insulation Comparison & Preliminary Envelope Loads
Embodied carbon of options from EPD factors you enter, insulation R comparison, and conductive heat loss Q = U·A·ΔT. Preliminary.
Enter it once
One project carries the profile, material and edge runs into every tool. Nothing is typed twice.
See how it was worked out
Every answer shows its status, the formula, the assumptions and the published source of each value.
Send it to AFS
The takeoff goes to the shop as a request for quote, stamped preliminary with its calculation fingerprint.
What these tools are not
They are design aids for preliminary sizing and quantities. They do not replace the engineer of record, the plumbing designer or the governing code, and no result is a fabrication release until AFS reviews it. Read the method sheets for exactly what each one covers.