Hi , Im asking you to please sign this petition, it aims to encourage the government to make it mandatory to fit Swiftbricks into all new build buildings , where practical. I dont need to remind you that species like the Swift that rely on walls and roof spaces for nest sites have seen their numbers crash in recent times , one of the reasons being modern day roofing practices which exclude birds from our buildings , Swiftbricks would still allow good house insulation and still allow us to live in harmony with these species that have come to rely on us . Thanks .https://petition.parliament.uk/petitions/626737