[Equest-users] Roof gardens

[Dakota Kelley]

There are a wide variety of construction types for green roofs, so you'll have to create a custom construction (probably using custom materials) for the roof as-designed.  The problem is that the roof's thermal properties are not constant; e.g. the soil/growing medium's conductivity depends on moisture content, among other things.  eQUEST does not handle variable material properties, so you'll have to be comfortable with the inaccuracy.  Also, if the resulting construction is too thick, roughly three feet or more, eQUEST will give you an error message.  
 
Dakota Kelley
Telios MEP Engineers

________________________________

From: Stephen Sorensen [mailto:ssorensen80 at gmail.com]
Sent: Tue 4/27/2010 1:44 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Roof gardens



Hi everyone,

 

Is anyone familiar with R-value calculations for a roof top garden or how one would model this in e-quest.

 

Stephen Sorensen

Hansen Engineering

Friendsville, PA

P: 570-553-4284

F: 570-553-0234

 

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