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Horizontal roof rafter span

Reference data et engineering information about horizontal roof rafter span pour building et construction applications.

horizontalroofrafterspan

Overview

Engineering reference data for Horizontal Roof Rafter Span in building construction.

Key Formulas

U-value

U=1RtotalU = \frac{1}{R_{total}}

Overall heat transfer coefficient.

Heat Loss

Q=UAΔTQ = U A \Delta T

Heat transfer through building envelope.

Variables

SymbolDescriptionUnit
UUU-valueW/(m²·K)
AAArea
ΔT\Delta TTemperature differenceK

References