3.0
increase_insulation_r_value_for_exterior_walls
3fdf9c39-d305-449b-a4b5-077166af5a67
b3bf7aeb-9af7-4b24-aeea-4a82b26d06a9
20230602T151915Z
0F858D9E
IncreaseInsulationRValueForExteriorWalls
Increase R-value of Insulation for Exterior Walls to a Specific Value
Set the R-Value of exterior wall insulation to a specified value. Higher R-Values provide better insulation, lowering heat loss and heat gain through the exterior walls. Costs for a construction can be adjusted
Set the R-Value (ft^2*h*R/Btu) of the insulation material layer in air exposed exterior walls to a specified value. Find constructions used for exterior walls, make copies of these and assign them to the appropriate construction sets or surfaces. Identify which layer of the construction is the insulation layer. Layer to change could be Material, No Mass Material, or Air Gap Material. If the Insulation layer is "Material? the thickness will be changed to attain the desired R-Value. If the insulation layer is "No Mass Material? or "Air Gap Material? the Thermal Resistance can be directly entered. If the construction doesn't appear to have an insulation layer it will not be altered. Surfaces with "Adiabatic" boundary conditions are not specifically assumed to be interior or exterior. As a result constructions used on "Adiabatic" surfaces will not be altered. Constructions for surfaces with a "Ground" boundary condition will also not be altered. Constructions with an insulation layer that already exceeds the requested R-Value will also not be altered.
The resulting construction will retain the cost data from the source construction, however material and installation cost can be increased which will affect replacement cost if it happens during the analysis period. Additionally a one-time cost can be added to reflect any retrofit costs that occur at some point prior to replacement.
r_value
Insulation R-value (ft^2*h*R/Btu).
Double
true
false
13
allow_reduction
Allow both increase and decrease in R-value to reach requested target?
Boolean
true
false
false
true
true
false
false
material_cost_increase_ip
Increase in Material and Installation Costs for Construction per Area Used ($/ft^2).
Double
true
false
0
one_time_retrofit_cost_ip
One Time Retrofit Cost to Add Insulation to Construction ($/ft^2).
Double
true
false
0
years_until_retrofit_cost
Year to Incur One Time Retrofit Cost (whole years).
Integer
true
false
0
Envelope.Opaque
Measure Type
ModelMeasure
string
Measure Function
Measure
string
Requires EnergyPlus Results
false
boolean
Uses SketchUp API
false
boolean
EnvelopeAndLoadTestModel_01.osm
osm
test
10AA8866
ReverseTranslatedModel.osm
osm
test
0B94403D
no_mass.osm
osm
test
2ED7A4BA
README.md.erb
erb
readmeerb
703C9964
README.md
md
readme
C9E03B35
LICENSE.md
md
license
0DDDFB54
OpenStudio
2.0.0
2.0.0
measure.rb
rb
script
EDD84D57
IncreaseInsulationRValueForExteriorWalls_01_Test.rb
rb
test
308798DD