diff --git a/recommendations/RoofRecommendations.py b/recommendations/RoofRecommendations.py
index 13cf958e..5a2a6bcf 100644
--- a/recommendations/RoofRecommendations.py
+++ b/recommendations/RoofRecommendations.py
@@ -47,35 +47,17 @@ class RoofRecommendations:
 
         u_value = get_roof_u_value(**{**self.property.roof, "age_band": self.property.age_band})
 
-        # With loft insulation, 100mm goes between the joists and the rest is rolled on top
-        # Therefore the price is 100mm + whatever thickness is rolled on top, rolled at a 90 degree angle
-        # from the base layer
-        materials = [
-            {
-                'id': 4,
-                'type': 'loft_insulation',
-                'description': 'Iso Spacesaver Mineral Wool insulation',
-                'depths': [270, 300],
-                'depth_unit': 'mm',
-                'cost': [9, 10],
-                'cost_unit': 'gbp_sq_meter',
-                'r_value_per_mm': 0.022727272727272728,
-                'r_value_unit': 'square_meter_kelvin_per_watt',
-                'thermal_conductivity': 0.044,
-                'thermal_conductivity_unit': 'watt_per_meter_kelvin',
-                'link': "https://flooringwarehousedirect.co.uk/product/isover-spacesaver-roll-100mm-x-1160mm-x-12-18m"
-                        "-14-13m2/",
-                'is_active': True
-            },
-        ]
-
-        self.materials = materials
-
         if self.property.roof["is_pitched"]:
             # We recommend loft insulation
             self.recommend_loft_insulation(u_value)
             return
 
+        raise NotImplementedError("Implement me")
+
+    @staticmethod
+    def make_loft_insulation_description(material, depth):
+        return f"Install {depth}{material['depth_unit']} of {material['description']}"
+
     def recommend_loft_insulation(self, u_value):
 
         """
@@ -83,6 +65,10 @@ class RoofRecommendations:
         :return:
         """
 
+        # With loft insulation, 100mm goes between the joists and the rest is rolled on top
+        # Therefore the price is 100mm + whatever thickness is rolled on top, rolled at a 90 degree angle
+        # from the base layer
+
         loft_insulation_materials = [m for m in self.materials if m["type"] == "loft_insulation"]
 
         lowest_selected_u_value = None
@@ -111,7 +97,7 @@ class RoofRecommendations:
                 if new_u_value <= self.BUILDING_REGULATIONS_PART_L_MAX_U_VALUE:
                     lowest_selected_u_value = update_lowest_selected_u_value(lowest_selected_u_value, new_u_value)
 
-                    estimated_cost = cost_per_unit * self.property.insulation_wall_area
+                    estimated_cost = cost_per_unit * self.property.floor_area
 
                     recommendations.append(
                         {
@@ -125,10 +111,12 @@ class RoofRecommendations:
                                 )
                             ],
                             "type": "roof_insulation",
-                            "description": "TODO ",
+                            "description": self.make_loft_insulation_description(material, depth),
                             "starting_u_value": u_value,
                             "new_u_value": new_u_value,
                             "sap_points": None,
                             "cost": estimated_cost,
                         }
                     )
+
+        self.recommendations = recommendations