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Updated condittions we recommend loft insulation, so it is not recommended if the home has more than 200mm insulation in place already

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Khalim Conn-Kowlessar 2024-04-11 10:30:36 +01:00
parent f04b79d680
commit 43af0de047
1 changed files with 4 additions and 3 deletions
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7
recommendations/RoofRecommendations.py
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@ -20,8 +20,9 @@ class RoofRecommendations:
DIMINISHING_RETURNS_U_VALUE = 0.14 DIMINISHING_RETURNS_U_VALUE = 0.14
# It is recommended that lofts should have at least 270mm of insulation # It is recommended that lofts should have at least 270mm of insulation. If the property has more than 200mm of
MINIMUM_LOFT_ISULATION_MM = 270 # loft insulation in place already, we do not recommend anything for the moment
MINIMUM_LOFT_ISULATION_MM = 200
# Flat roof should have at least 100mm of insulation # Flat roof should have at least 100mm of insulation
MINIMUM_FLAT_ROOF_ISULATION_MM = 100 MINIMUM_FLAT_ROOF_ISULATION_MM = 100
@ -71,7 +72,7 @@ class RoofRecommendations:
# Building regulations part L recommend installing at least 270mm of insulation, however generally we # Building regulations part L recommend installing at least 270mm of insulation, however generally we
# experience diminishing returns in terms of SAP once we go beyond around 150mm of insulation # experience diminishing returns in terms of SAP once we go beyond around 150mm of insulation
# This only holds true for pitched roofs. # This only holds true for pitched roofs.
if (insulation_thickness >= self.MINIMUM_LOFT_ISULATION_MM) and self.property.roof["is_pitched"]: if (insulation_thickness > self.MINIMUM_LOFT_ISULATION_MM) and self.property.roof["is_pitched"]:
return return
if (insulation_thickness >= self.MINIMUM_FLAT_ROOF_ISULATION_MM) and self.property.roof["is_flat"]: if (insulation_thickness >= self.MINIMUM_FLAT_ROOF_ISULATION_MM) and self.property.roof["is_flat"]: