 In this video, I'll take a look at how we can create materials and I'll take foundation in creating a wall and understanding how materials are working and just take a quick look into how we can get the different parameters and what they are meaning to the simulation with Inside Ecoject. I've now opened the conceptual environment with Inside Ecoject and I want to take a look at how we can create material and take the foundation in creating a wall material. If we go here to the treaty editor and we mark out a wall, you'll see that a wall or any other component within Inside Ecoject has a primary and an alternating material. The reason for this is that two walls that are considered to be adjacent in the adjacency calculation will use the alternating material for making sure that this internal wall and not an outside wall material. This is quite helpful so it's a bit faster to set up the model and that the model or the program can calculate the actual built-in relations by itself. If we then go up here to the element library, we can simply pick a wall that is quite similar to the one that we want to make. Let's call this new wall tree and then set it to library. Now we created a new wall material and we can now begin to edit this wall. We can give it a description and we can edit the cost greenhouse gas emission if we have these parameters and we can use those in the analysis process. Up here we can highlight which types of parameters we'll need for different types of analysis. For lightning analysis we'll need solar absorption and visible transmittance. Visible transmittance is not that common for walls but we can have walls that have some kind of transmittance. What we will do is that we'll go to layers and we have these great libraries with different types of physical materials that we can pull in to this layer structure that is quite similar to a lot of other simulation programs and then we can just type in the actual width, density, heat capacity and conduction and then we can use this layer structure here to calculate the thermal properties. If we want to add more layers we can simply just insert layers and we can insert new materials here. So let's say just calculate thermal properties and see that it's now updating many of these parameters. It's actually only updating the U value and the thermal decrement. It's not updating thermal lag and admittance as it says. Some of these parameters are quite well known but are working a bit differently with inside The U value is quite logical, most people know this. The admittance which is that some walls even though they have a good U value won't have the same ability to exchange heat with the outside and then we have the solar absorption which is a fraction of the color. So if we click here to edit the color it's using the RGB color scale and the program assumes that a dark color will absolve more heat from the sun and that a light color will reflect more light or heat. So if we set the color here you'll see that the solar absorption and the color reflection is really an equation of each other between zero and one. If we have the values we don't need to go into layers we can simply just type in the properties here and there is this great little tool called the Ecomad that we can use. So if we go into layers and we get the Ecomad here we can simply copy the material data and then when we have done this we can simply just calculate here and it will calculate the U value admittance, thermal decrement and thermal lag. So this is just a little help tool. I don't remember the cost but it's reasonable. Unfortunately it only applies for wall materials and not for window materials. So here for window materials I made a little spreadsheet where I calculated the values and I didn't translate that but in the next video I will explain how to create a window material. So now that this is done we can say apply changes and we can close the library and we can go here to select by element type say walls and we can go here to the selection and mark out new wall material so apply and we can then go to the visualized tab to see how the material is displayed on our model.