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Thermal Transmittance Logic

U-Value Calculator.

ISO 6946 compliant envelope analysis. Compute high-fidelity U-Values, R-Values, and Thermal Mass for professional building assemblies.

Layer Configuration (Out to In)

1
C
Cement Plaster
Finishesλ = 0.720
MM
2
B
Brick (Common)
Masonryλ = 0.720
MM
3
G
Gypsum Board
Finishesλ = 0.170
MM

Standard Material Library

Absolute Transmittance

1.701

W/m²·K
Overall Heat Transfer Coefficient (U-Value)
Total Resistance (R)
0.588 m²K/W
Thermal Mass
411 kJ/m²K
Phase Time Lag
Wave retardation (φ)
1.2 hr
Decrement Factor
Amplitude attenuation (f)
0.050

Architectural Section

Outdoor (0.04 m²K/W)
Indoor (0.13 m²K/W)
EXT
Cement Plaster20mm
Brick (Common)230mm
Gypsum Board12mm
INT
Wt
Areal Weight
486 kg/m²
Dp
Total Depth
262 mm

Assembly yields a time lag of 1.2H.
Considered Sub-Optimal for high diurnal variance climates.

What is Construction Assembly?

Calculate U-Value, R-Value, and Thermal Mass of wall, roof, and floor assemblies.

Technical Overview

Design high-performance building envelopes. Layer materials like brick, insulation, and timber to calculate the overall U-value and R-value of your construction assembly, ensuring compliance with local energy codes.

Architectural Precision

NiyamX bridges the gap between design and regulation. Our algorithms are meticulously calibrated against NBC 2016 and international standards, ensuring your vision translates seamlessly into a compliant, buildable reality.

Scaling Beyond Just Construction Assembly

NIYAMX CO-PILOT
POWERED BY AI.

Our professional platform helps you generate code-compliant reports, verify thousands of municipal bylaws, and automate your entire AEC documentation workflow.

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PLATFORM CAPABILITIES

Code Intelligence

Instant citations from NBC 2016 & State DCRs

Plan Verification

Automated checks for architectural layouts

Export Instruments

Professional PDF & DXF report generation

Version Control

Track code changes and city-wise updates

Trusted by 5,000+ Architects & Developers Across India

Mastering the Construction Assembly

A professional guide to leveraging the Construction Assembly for advanced technical analysis and regulatory verification.

1

Configure Project Parameters

Enter your specific site dimensions and project constraints. Our engine will real-time validate your inputs against technical thresholds.
2

Analyze Compliance Insights

Instantly visualize results on the pro-grade dashboard. Verify your design against statutory codes with mathematical certainty.
3

Generate Executive Report

Download a comprehensive PDF OR JSON report, ready for client presentation or municipal submission.

Common Questions

1
What is the difference between U-value and R-value?

R-value measures thermal resistance (how well a material resists heat flow), while U-value measures thermal transmittance (how fast heat flows through a structure). U = 1/R.

2
Does this tool consider thermal bridging?

The basic calculator assumes uniform layers, but you can add materials with adjusted properties to account for repetitive framing or bridging.
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