The structure of our 2 storey office studio building has been built so now we are preparing to put the roof tiles on this and the new outside WC. First though, we need to ensure that the roofs have proper insulation and waterproofing. A specialist has been today to spray the roof with a sealant. The chemical reaction in the spray creates a foam which quickly hardens. A skim of concrete is applied over this and the roof is then ready for the tiles. The cost of this for our two small roofs was 350 euros and the process took only an hour. Up to 100 square metres of roof can be covered for 450 euros.
This may sound like a routine building proceedure for Northern Europeans but, on all the small building works we have seen over the years on the coast and in Los Guajares, we have not come across this before. In Southern Spain, most builders disregard the fact that it does rain sometimes and insulation is not a priority. As a result, we have come across many expats who have encountered roof problems and we ourselves suffered in our last house when we had particularly heavy rain. After this extremely wet winter we stongly recommend anybody building here to use this system.