#roofing

Geometría de techos como una API, calculada local y determinísticamente. El endpoint de pendiente convierte libremente entre las tres formas en que los oficios describen la inclinación de un techo: la pendiente como elevación por 12 de avance (notación X:12), el ángulo en grados y la pendiente como porcentaje, usando ángulo = atan(pendiente/12); un techo 6:12 es 26.57° y una pendiente del 50%, y también devuelve el multiplicador de pendiente √(1 + tan²) que escala una longitud plana a la longitud real a lo largo de la pendiente. El endpoint de viga calcula la longitud de la viga común a partir del avance horizontal y la pendiente, viga = √(avance² + elevación²) con elevación = avance·tan(ángulo), y agrega la longitud a lo largo de la pendiente de un voladizo horizontal opcional — un avance de 12 unidades a 6:12 necesita una viga de 13.42 unidades. El endpoint de área convierte una huella de edificio plana en el área de superficie real del techo inclinado, huella / cos(ángulo), la cifra que necesita para pedir tejas, membrana o subcapa; una huella de 100 m² bajo un techo 6:12 es aproximadamente 111.8 m². Las longitudes son independientes de la unidad — use una unidad consistente. Todo se calcula local y determinísticamente, por lo que es instantáneo y privado. Ideal para desarrolladores de aplicaciones de techado, construcción, estimación para contratistas, mejoras para el hogar, instalación solar y arquitectura, herramientas de medición y pedido de materiales, y software comercial. Cálculo local puro — sin clave, sin servicio de terceros, instantáneo. En vivo, nada almacenado. 3 endpoints. Esta es geometría específica de techos; para una pendiente o gradiente general, use una API de pendiente.

api.oanor.com/roofpitch-api

Roof snow-load maths as an API, computed locally and deterministically using the ASCE 7 method. The roof endpoint turns a ground snow load into the design roof snow load: the flat-roof load is pf = 0.7 · Ce · Ct · Is · pg, using the exposure, thermal and importance factors, and the sloped-roof load is ps = Cs · pf, where the slope factor Cs follows the warm-roof all-surfaces curve (1.0 up to 30°, falling linearly to 0 at 70°) or a value you supply. It reports every load in kilopascals, pascals, pounds per square foot and kilograms per square metre, and — if you give a roof area — the total load in kilonewtons, kilograms, tonnes and pounds. The depth endpoint converts a measured snow depth and a density (given directly or by snow type, from fresh ~100 to ice ~917 kg/m³) into a load. The convert endpoint converts a snow load between kPa, psf, kg/m², Pa and psi. Depths accept millimetres, centimetres, metres, inches or feet. Everything is computed locally and deterministically, so it is instant and private. An engineering aid, not a code-stamped design — always confirm against the governing local code with a qualified engineer. Ideal for structural and roofing tools, building-code and permitting apps, solar-install and carport planners, and winter-risk calculators. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is roof snow-load engineering; for roof pitch and area geometry use a roofing API and for beam reactions use a beam API.

api.oanor.com/snowload-api

Roofing geometry as an API, computed locally and deterministically. The pitch endpoint converts a roof pitch between every common form — rise-over-run (such as 6:12), the angle in degrees, the percent slope, and the slope multiplier (the factor that turns a flat footprint into the real sloped area). The rafter endpoint computes the rafter length from the horizontal run and the pitch — that is, the hypotenuse √(run² + rise²) — with an optional overhang projected along the slope. The area endpoint computes the true sloped roof area from the building footprint (entered directly or as length × width) and the pitch, adds a wastage allowance, and reports the number of US roofing squares and shingle bundles needed. Everything is computed locally and deterministically, so it is instant and private. Lengths are unit-agnostic — use consistent units — while the squares and bundles figures assume US roofing squares of 100 square feet, so pass the footprint in square feet for those. Ideal for roofing contractors and estimators, construction and DIY tools, solar-install planning, and quoting software. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is roof geometry; for paint, tile, concrete and brick quantities use a construction-calculator API.

api.oanor.com/roofing-api