How to use the Calculator

how to use this catalogue

 

Understanding the Simulated Durability Analysis Results

 

WUFI Hygrothermal Modeling

This represents the result of a comprehensive WUFI analysis on the selected wall assembly in each of the 5 climate conditions:

 

greenGreen indicates that the wall performed well and is suitable for the said climate zone
yellowYellow indicates that the wall performed moderately and one should take caution in selecting this wall for the said climate zone – refer to the detailed building science notes to learn how to improve the durability of the selected wall assembly

 

 

Outboard to Inboard Ratio Compliance 

This scale represents the result of an outboard to inboard analysis on the wall assemblies using low permeance exterior sheathings:

 

greenGreen indicates that the wall meets the climate’s required minimum ratio
redRed indicates that the wall does not meet the climate’s required minimum ratio and the outboard sheathing’s permeance must be examined to verify Code compliance