Facade Engineering Calculators
Precision tools for envelope design — wind, thermal, acoustic, fire, cost and fabrication. Save results to revisit them anytime.
Most Used Calculators
Calculating Weight
Hollow Section Calculator
RHS/SHS pipe weight & section properties — Ixx, Iyy, Zxx & allowable stress for GI, Aluminium & Stainless profiles.
Facade Estimator
All-in-one weight & coating estimator for glass, aluminium sheets, steel sheets and hollow tubes — with a consolidated project summary and PDF report.
Structural
Glass Deflection Calculator
Calculate single glazing deflection, load resistance & safety factor under wind load.
ACP Deflection Calculator
Calculate ACP panel stress, deflection, stiffener reinforcement, bracket spacing & rivet capacity under wind load.
Double Glazing Calculator
Model double glazing units with load sharing factors (LS1/LS2).
Laminated Glass Load Resistance
Calculate load resistance (kPa) for laminated glass makeups with AN, HS & TF processing options.
Laminated SentryGlas Deflection Calculator
Interpolate deflection & load resistance (kPa) for laminated glass with a SentryGlas ionoplast interlayer from tabulated reference data.
Spandrel Insulation Calculator
Calculate spandrel thermal performance, U-values, heat flux and energy savings based on ISO 6946.
Wind Load Calculator (IS 875)
Calculate design wind speed & pressure per IS 875 Part 3 using k1–k4 factors for any Indian city.
Unitised Structural Glazing Calculator
STAAD-calibrated USG design check for aluminium 6063-T6 curtain walls. Mullion + transom stress & deflection per IS:8147.
ACP Frame Calculator (IS 8147)
IS:8147 quick check for aluminium SHS facade back-frame members (mullion + transom). Deflection & stress for ACP, stone, tile, zinc & perforated cladding.
Wind Load Navigator
Approximate design wind pressures based on geography and height.
Thermal
Spandrel Thermal Calculator
Calculate heat transmission, cavity temperatures & RCC surface heat load for curtain wall spandrel assemblies.
Glass Thermal Breakage Calculator
Calculate thermal edge stress, breakage probability & critical ΔT for annealed, heat-strengthened and toughened glass under solar loading.
Window Heat Gain Calculator
Calculate solar, conductive & air-leakage heat gain per window, flat & whole building. Compare glass types per ASHRAE 90.1, ASTM E283 & NFRC 100.
Aluminium Thermal Bending Calculator
Estimate free-plate curvature, mid-span deflection & thermal stress in aluminium sheet from a face-to-face temperature gradient, by alloy and temper.
Thermal Bridge Analyzer
Predict U-values and condensation risks for framing systems.
U-Value Estimator
Quick estimation of Center-of-Glass and Frame U-values.
Performance & Comfort
Acoustic Estimator
Estimate STC and OITC ratings for glazing assemblies.
Acoustic Glass Simulator
Visualise sound transmission through glass — single pane, DGU, laminated & more. Real-time dB reduction with live wave animation.
Acoustic Glass Performance Tool
Calculate STC / Rw ratings for SGU, DGU, Laminated PVB & SGP. Reference data tables, Mass Law comparison, and side-by-side glazing spec comparison.
Glass Acoustic Calculator
Estimate mass, coincidence frequency & sound reduction index (Rw) for SGU/DGU glazing — monolithic, laminated, with live transmission-loss chart.
Window Acoustic Simulator
Simulate sound attenuation through full window systems — frame type, glass spec, shutter count & size. Live wave animation with STC breakdown.
Glass Comparison
Compare up to 4 glass types side-by-side with spider charts. Analyse transmittance, reflectance, solar factor & more.
Louver Free Area
Calculate free area and pressure drop for ventilation louvers.
Weatherproofing
Silicone Joint Movement Calculator
Verify silicone joint capacity for thermal expansion and wind load. Pass/Fail verdict per ASTM C1401 / C1472 / C1193 & ETAG 002.
Gutter Sizing
Calculate rainwater runoff and required gutter capacity.
Safety & Compliance
Fire Rated Glass Calculator
Compare EW and EI glass unexposed-face temperatures against ISO 834 & hydrocarbon fire curves with real-time chart.
IS 18190: Time–Temperature Curve
Calculate and compare ISMA (IS 18190:2023 / ASTM E2307) and ISO 834 fire curves. View key temperature points and interactive chart.
IS 18190: Rockwool Thickness Calculator
Calculate minimum rockwool thickness and smoke blockage (L-Rating) for perimeter fire barrier joints per IS 18190:2023.
IS 18190: Movement Cycling Calculator
Determine movement type, cycling rate, test duration and ±12.5% movement capacity for perimeter fire barrier joints per IS 18190:2023 Table 1.
IS 18190: Firestop System Checker
Select required F-Rating, L-Rating, movement cycling and rockwool specification for your building type per IS 18190:2023 + NBC 2016.
Window Quality Audit Tool
8-stage on-site QA workflow for aluminium & uPVC windows — checklists, warnings, photos, approvals & PDF export.
ACP Fire Classification Calculator
Estimate ACP core fire performance — FSI, SDI, HRR, CO/CO₂ and ASTM E84 Class A/B/C rating with smoke obscuration chart and PDF report.
Firestop Selector
Determine firestop requirements for slab edge details.
Fabrication
Silicone Sealant Calculator
Estimate silicone sealant consumption for SSG, weather seal & expansion joints with PDF report.
Silicone Bite Size Calculator
Calculate minimum structural silicone bite size for glazing panels based on wind load & ETAG 002 principles.
Coating Area & Cost Calculator
Estimate area, weight & cost for Powder Coating, PVDF & Anodizing — per-section breakdown with PDF export.
Panel Optimization
Optimize cutting lists to minimize waste for sheet materials.
Cost & Logistics
Facade Cost Estimator
Estimate total facade costs with breakdowns for material, system, and installation expenses.
Glass Weight Calculator
Quickly calculate the weight of glass panels based on thickness and area.
Logistics Planner
Plan crane picks and delivery batches based on panel weights.
Sheet & Spandrel Panel Calculator
Weight & full costing for GI/Steel/SS/Aluminium sheets and insulated spandrel panels — material, labour, PC, wastage & profit.
