clean_roof_test_cases = [
    {'original_description': '(another dwelling above)', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': False, 'is_roof_room': False, 'is_loft': False, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': True, 'is_valid': True,
     'insulation_thickness': None},
    {'original_description': '(other premises above)', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None,
     'is_pitched': False, 'is_roof_room': False, 'is_loft': False, 'is_flat': False, 'is_thatched': False,
     'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': True, 'is_valid': True,
     'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.06 W/m-¦K', 'thermal_transmittance': 0.06,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.07 W/m-¦K', 'thermal_transmittance': 0.07,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.08 W/m-¦K', 'thermal_transmittance': 0.08,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.09 W/m-¦K', 'thermal_transmittance': 0.09,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.1 W/m-¦K', 'thermal_transmittance': 0.1,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.10 W/m-¦K', 'thermal_transmittance': 0.1,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.11 W/m-¦K', 'thermal_transmittance': 0.11,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.12 W/m-¦K', 'thermal_transmittance': 0.12,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.13 W/m-¦K', 'thermal_transmittance': 0.13,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.14 W/m-¦K', 'thermal_transmittance': 0.14,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.15 W/m-¦K', 'thermal_transmittance': 0.15,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.16 W/m-¦K', 'thermal_transmittance': 0.16,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.17 W/m-¦K', 'thermal_transmittance': 0.17,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.18 W/m-¦K', 'thermal_transmittance': 0.18,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.19 W/m-¦K', 'thermal_transmittance': 0.19,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.2 W/m-¦K', 'thermal_transmittance': 0.2,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.20 W/m-¦K', 'thermal_transmittance': 0.2,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.21 W/m-¦K', 'thermal_transmittance': 0.21,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.22 W/m-¦K', 'thermal_transmittance': 0.22,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.23 W/m-¦K', 'thermal_transmittance': 0.23,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.24 W/m-¦K', 'thermal_transmittance': 0.24,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.25 W/m-¦K', 'thermal_transmittance': 0.25,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.26 W/m-¦K', 'thermal_transmittance': 0.26,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.27 W/m-¦K', 'thermal_transmittance': 0.27,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.28 W/m-¦K', 'thermal_transmittance': 0.28,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.29 W/m-¦K', 'thermal_transmittance': 0.29,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.3 W/m-¦K', 'thermal_transmittance': 0.3,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.30 W/m-¦K', 'thermal_transmittance': 0.3,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.31 W/m-¦K', 'thermal_transmittance': 0.31,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.32 W/m-¦K', 'thermal_transmittance': 0.32,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.33 W/m-¦K', 'thermal_transmittance': 0.33,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.34 W/m-¦K', 'thermal_transmittance': 0.34,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.35 W/m-¦K', 'thermal_transmittance': 0.35,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.36 W/m-¦K', 'thermal_transmittance': 0.36,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.37 W/m-¦K', 'thermal_transmittance': 0.37,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.38 W/m-¦K', 'thermal_transmittance': 0.38,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.4 W/m-¦K', 'thermal_transmittance': 0.4,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.42 W/m-¦K', 'thermal_transmittance': 0.42,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.44 W/m-¦K', 'thermal_transmittance': 0.44,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.45 W/m-¦K', 'thermal_transmittance': 0.45,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.48 W/m-¦K', 'thermal_transmittance': 0.48,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.49 W/m-¦K', 'thermal_transmittance': 0.49,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.58 W/m-¦K', 'thermal_transmittance': 0.58,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.70 W/m-¦K', 'thermal_transmittance': 0.7,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.89 W/m-¦K', 'thermal_transmittance': 0.89,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 0.94 W/m-¦K', 'thermal_transmittance': 0.94,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 1.00 W/m-¦K', 'thermal_transmittance': 1.0,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 1.19 W/m-¦K', 'thermal_transmittance': 1.19,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Average thermal transmittance 2.30 W/m-¦K', 'thermal_transmittance': 2.3,
     'thermal_transmittance_unit': 'w/m-¦k', 'is_pitched': False, 'is_roof_room': False, 'is_loft': False,
     'is_flat': False, 'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False,
     'is_valid': True, 'insulation_thickness': None},
    {'original_description': 'Flat, insulated', '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': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'average'},
    {'original_description': 'Flat, insulated (assumed)', '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': 'average'},
    {'original_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': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'below average'},
    {'original_description': 'Flat, limited insulation (assumed)', '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'},
    {'original_description': 'Flat, no insulation (assumed)', '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': 'none'},
    {'original_description': 'Pitched', 'thermal_transmittance': None, 'thermal_transmittance_unit': None,
     'is_pitched': True, 'is_roof_room': False, 'is_loft': False, 'is_flat': False, 'is_thatched': False,
     'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': None},
    {'original_description': 'Pitched, *** INVALID INPUT Code : 57 *** loft insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': True, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': False,
     'insulation_thickness': None},
    {'original_description': 'Pitched, 0 mm loft insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': True, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': '0'},
    {'original_description': 'Pitched, 100 mm loft insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': True, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': '100'},
    {'original_description': 'Pitched, 12 mm loft insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': True, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': '12'},
    {'original_description': 'Pitched, 150 mm loft insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': True, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': '150'},
    {'original_description': 'Pitched, 200 mm loft insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': True, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': '200'},
    {'original_description': 'Pitched, 25 mm loft insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': True, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': '25'},
    {'original_description': 'Pitched, 250 mm loft insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': True, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': '250'},
    {'original_description': 'Pitched, 270 mm loft insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': True, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': '270'},
    {'original_description': 'Pitched, 300 mm loft insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': True, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': '300'},
    {'original_description': 'Pitched, 350 mm loft insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': True, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': '350'},
    {'original_description': 'Pitched, 400 mm loft insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': True, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': '400'},
    {'original_description': 'Pitched, 400+ mm loft insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': True, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': '400+'},
    {'original_description': 'Pitched, 50 mm loft insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': True, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': '50'},
    {'original_description': 'Pitched, 75 mm loft insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': True, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': '75'},
    {'original_description': 'Pitched, insulated', 'thermal_transmittance': None, 'thermal_transmittance_unit': None,
     'is_pitched': True, 'is_roof_room': False, 'is_loft': False, 'is_flat': False, 'is_thatched': False,
     'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'average'},
    {'original_description': 'Pitched, insulated (assumed)', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': False, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': True, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'average'},
    {'original_description': 'Pitched, insulated at rafters', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': False, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': True, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'average'},
    {'original_description': 'Pitched, limited insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': False, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'below average'},
    {'original_description': 'Pitched, limited insulation (assumed)', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': False, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': True, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'below average'},
    {'original_description': 'Pitched, no insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None,
     'is_pitched': True, 'is_roof_room': False, 'is_loft': False, 'is_flat': False, 'is_thatched': False,
     'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'none'},
    {'original_description': 'Pitched, no insulation (assumed)', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': True, 'is_roof_room': False, 'is_loft': False, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': True, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'none'},
    {'original_description': 'Roof room(s), ceiling insulated', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': False, 'is_roof_room': True, 'is_loft': False, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'average'},
    {'original_description': 'Roof room(s), insulated', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': False, 'is_roof_room': True, 'is_loft': False, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'average'},
    {'original_description': 'Roof room(s), insulated (assumed)', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': False, 'is_roof_room': True, 'is_loft': False, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': True, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'average'},
    {'original_description': 'Roof room(s), limited insulation (assumed)', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': False, 'is_roof_room': True, 'is_loft': False, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': True, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'below average'},
    {'original_description': 'Roof room(s), no insulation (assumed)', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': False, 'is_roof_room': True, 'is_loft': False, 'is_flat': False,
     'is_thatched': False, 'is_at_rafters': False, 'is_assumed': True, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'none'},
    {'original_description': 'Thatched', 'thermal_transmittance': None, 'thermal_transmittance_unit': None,
     'is_pitched': False, 'is_roof_room': False, 'is_loft': False, 'is_flat': False, 'is_thatched': True,
     'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': None},
    {'original_description': 'Thatched, with additional insulation', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None, 'is_pitched': False, 'is_roof_room': False, 'is_loft': False, 'is_flat': False,
     'is_thatched': True, 'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'above average'},
    {'original_description': 'Ar oleddf, dim inswleiddio', 'thermal_transmittance': None,
     'thermal_transmittance_unit': None,
     'is_pitched': True, 'is_roof_room': False, 'is_loft': False, 'is_flat': False, 'is_thatched': False,
     'is_at_rafters': False, 'is_assumed': False, 'has_dwelling_above': False, 'is_valid': True,
     'insulation_thickness': 'none'}
]