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Added limited flat roof insulaton

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This commit is contained in:
Khalim Conn-Kowlessar 2023-11-17 11:02:54 +00:00
parent 4537c7deab
commit eb277b4e8a
2 changed files with 34 additions and 6 deletions
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1
recommendations/RoofRecommendations.py
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@ -123,6 +123,7 @@ class RoofRecommendations:
for material in materials:
for depth, cost_per_unit in zip(material["depths"], material["cost"]):
# We make sure we hit a depth of 270mm. We should factor in any existing insulation if the
# loft is already partially insulated
if (depth + insulation_thickness) < self.MINIMUM_LOFT_ISULATION_MM:

39
recommendations/tests/test_roof_recommendations.py
View file

@ -55,7 +55,7 @@ flat_roof_insulation_materials = [
'description': 'Example flat roof insulation',
'depths': [50, 150, 220, 270, 300], 'depth_unit': 'mm', 'cost': [9, 10, 11, 12, 13],
'cost_unit': 'gbp_sq_meter',
'r_value_per_mm': 0.022727273, 'r_value_unit': 'square_meter_kelvin_per_watt',
'r_value_per_mm': 0.032727273, 'r_value_unit': 'square_meter_kelvin_per_watt',
'thermal_conductivity': 0.044, 'thermal_conductivity_unit': 'watt_per_meter_kelvin',
'link': None, 'is_active': True
}
@ -343,11 +343,6 @@ class TestRoofRecommendations:
"Insulate your room roof with 270mm of Example room roof insulation"
def test_flat_no_insulation(self):
# Desriptions to handle:
# 'Flat, limited insulation (assumed)',
#
# 'Flat, insulated (assumed)'
property_instance11 = Property(id=11, address1="fake", postcode="fake", epc_client=Mock())
property_instance11.age_band = "D"
property_instance11.floor_area = 150
@ -405,3 +400,35 @@ class TestRoofRecommendations:
roof_recommender12.recommend()
assert not roof_recommender12.recommendations
def test_flat_limited_insulation(self):
property_instance13 = Property(id=12, address1="fake", postcode="fake", epc_client=Mock())
property_instance13.age_band = "D"
property_instance13.floor_area = 150
property_instance13.roof = {
'original_description': 'Flat, limited insulation (assumed)',
'clean_description': 'Flat, limited insulation',
'thermal_transmittance': None, 'thermal_transmittance_unit': None, 'is_pitched': False,
'is_roof_room': False,
'is_loft': False, 'is_flat': True, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': True,
'has_dwelling_above': False, 'is_valid': True, 'insulation_thickness': 'below average'
}
roof_recommender13 = RoofRecommendations(
property_instance=property_instance13, materials=flat_roof_insulation_materials
)
assert not roof_recommender13.recommendations
roof_recommender13.recommend()
assert len(roof_recommender13.recommendations) == 1
assert roof_recommender13.recommendations[0]["parts"][0]["depths"] == [220]
assert roof_recommender13.recommendations[0]["new_u_value"] == 0.14
assert roof_recommender13.recommendations[0]["starting_u_value"] == 2.3
assert roof_recommender13.recommendations[0]["description"] == \
"Insulate the home's flat roof with 220mm of Example flat roof insulation"