Look at the photo below What do you notice? What does the snow on the roof tell us?.other than that we've had the right meteorological conditions for snow 😃 By looking at this photo, I can see that I'm not losing energy in the form of heat through the roof of my house, so my loft insulation is effective. Furthermore we are now benefitting from.the snow acting as extra insulation. This is not something we can feel from inside the house, but we notice the insulating effects of the snow in our polytunnel barn; the goats are well cosy.