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Added in loft insulation method

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This commit is contained in:
Khalim Conn-Kowlessar 2023-11-22 11:56:03 +00:00
parent a74459bf46
commit 89c75dcd5a
1 changed files with 14 additions and 19 deletions
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33
recommendations/Costs.py
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@ -84,7 +84,7 @@ class Costs:
"labour_hours": labour_hours
}
def cavity_wall_insulation(self, material):
def loft_insulation(self, material):
"""
Calculates the total cost for cavity wall insulation based on material and labor costs,
including contingency, preliminaries, profit, and VAT.
@ -92,26 +92,21 @@ class Costs:
:return: A dictionary containing detailed cost breakdown.
"""
# Cost per m2
material = {
"description": "Crown Dritherm Cavity Slab 37 (Thermal conductivity 0.037 W/mK) glass fibre batt or other "
"equal; as full or partial cavity fill; including cutting and fitting around wall ties and "
"retaining discs",
"depth": 75,
"thermal_conductivity": 0.037,
"prime_cost": 5.17,
"material_cost": 5.62,
"labour_cost": 2.25,
"labour_hours": 0.13
}
# material = {
# "description": "Crown Loft Roll 44 glass fibre roll",
# "depth": 270,
# "thermal_conductivity": 0.044,
# "prime_cost": None,
# "material_cost": 5.91938,
# "labour_cost": 1.96,
# "labour_hours": 0.11
# }
material_cost_per_m2 = material["material_cost"]
wall_area = self.property.insulation_wall_area
floor_area = self.property.floor_area
# This is the amount of material required in m3, assuming a standard 75mm depth
volume = 0.075 * wall_area
base_material_cost = material_cost_per_m2 * wall_area
labour_cost = material["labour_cost"] * wall_area
base_material_cost = material_cost_per_m2 * floor_area
labour_cost = material["labour_cost"] * floor_area
subtotal_before_profit = base_material_cost + labour_cost
@ -125,7 +120,7 @@ class Costs:
total_cost = subtotal_before_vat + vat_cost
labour_hours = material["labour_hours"] * wall_area
labour_hours = material["labour_hours"] * floor_area
return {
"total": total_cost,