This month, a double issue of Specifier looks at doors and windows and flooring – and what dynamic sectors they are. Despite a flurry of new rules, architects are still turning out some great pieces of work – and Tinside Lido in Plymouth is one of them. The project team managed to restore a 1930s art deco swimming pool to its former glory while still meeting all the latest health and safety standards. Here's how close collaboration enabled them to put together a tough waterproof flooring spec within budget. We also focus on the latest rules to affect floors, doors and windows – including the acoustic, access and thermal regs. Talking of which, Pascall + Watson had to comply with some of the toughest regs in existence when it specified the blast-resistant facades for the new Heathrow Terminal 5. Our feature shows the challenges faced in terror-proofing a glass building and outlines the web of international airport building standards that specifiers must adhere to. Finally, for those specifying PFI projects, Peter Mayer's columns on lifetime costs continue to make essential reading – and this month you get two!