❄️ NFRC 100/500 & AAMA 1503 (U-Factor 0.25-0.38 BTU/hr-ft²-°F, CRF >70 Anti-Cond)

Curtain Wall Thermal U-Factor & CRF Calculator

Model thermal transmittance (overall U-factor) and Condensation Resistance Factor (CRF) for thermally broken aluminum curtain wall framing under NFRC 100 & AAMA 1503: calculate polyamide thermal strut isolator performance, verify interior frame surface temperatures staying above winter indoor dewpoint (CRF > 70 to prevent condensation), and building envelope margins.

1. Project & Operating Inputs

Curtain Wall Elevation Profiles (Profile Count e.g. 14 Unique Facade Types)

Target Overall Assembly U-Factor (BTU/hr-ft²-°F e.g. 0.28 BTU High-Perf)

Customer Bid Price for THERM/WINDOW Simulation & AAMA Lab Test ($ / Type)

LBNL THERM FEA Simulation, Hot-Box Lab Testing, Thermal Engineer ($)

2. Financial Breakdown & Yield

NFRC 100 / AAMA 1503 THERMAL CRF

Turnkey Thermal Modeling & Testing Profit

Building Envelope Consulting Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost