There were some occasions during the process on which I began to wonder if the full information about the job was being passed on between departments because almost everyone who had need to visit the job seemed to be unaware of what I had in mind for the installation. Also, the workmen who installed a section of the panelling on my garage roof expressed surprise that no scaffolding had been provided for them. This resulted in them having to support themselves on my neighbours' garage roof which caused some damage to tiles on my neighbours' roof, the tiles then having to be replaced which, admittedly, was done immediately and invisibly with a perfect match. However, I was grateful that the pointing-up of the ridge-tiles on my house's roof was carried out without extra charge before the installation was started, and all the work was all carried out quickly and efficiently and included a thorough 'teach-in' to enable us to have a basic understanding of the various aspects of the equipment.