// multi-utility computation suite · offline · instant · precise
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build.solar-panel-roof-load Calculator
Calculates the additional dead load added to a roof structure by solar panels and racking hardware, and checks against structural capacity. Standard residential solar arrays add 3–5 psf to the roof — older structures near their load limit may require structural reinforcement.
Inputs
Panels
Count of items or occurrences.
Panel Kg
Body or object weight. For health calculators, usually in kg or lbs.
Racking Kg
Body or object weight. For health calculators, usually in kg or lbs.
Roof Area M2
Two-dimensional surface extent (m²). For complex shapes, break into simpler sub-shapes and sum.
Results
total added weight (kg)
The computed weight (gravitational force) or mass.
load (PSF)
Reference formula or conversion factor shown for context.
load (kPa)
Reference formula or conversion factor shown for context.
panels
Sample size or count used in the calculation.
typical residential dead load
Sample size or count used in the calculation.
structural check
A pass/fail verification against the applicable code, standard, or threshold.