Cardiff barn conversion patio doors — Rosac survey & install

If you've got a barn conversion on your hands in Cardiff, the recurring problem when quoting patio doors is original conversion glass is often 90s-spec and now poorly performing thermally. Tired 80s sliding aluminium doors that stick, lose heat and rattle in the wind is the paired issue you'll usually hear about at the same visit. Our spec here is thermally broken aluminium or reinforced uPVC with toughened safety glass to BS EN 12150. Vaulted internal ceilings mean the crew works off a small tower for gable glazing — ground protection sheeting mandatory. Off-street parking makes van access straightforward — we can stage glass in the driveway rather than on the pavement. External cill drips block with paint over the decades — raking them clean stops water sitting on the frame after install. Original front cills are usually blue engineering brick — leave them, drill through them for the frame fixings. Bay window scaffold requires a chimney tie or through-bolt to the party wall — allow an extra hour on set-up. Estate covenants are searchable through the deed pack; we ask the client to confirm colour before ordering foil. Stone reveals need resin anchors, not plug-and-screw — dressed stone crumbles under mechanical fixings. Door head heights sometimes below 1.9m; a standard 1981mm slab needs trimming or a bespoke height ordering. Tile porches are laid on a lime bed that reacts poorly to modern silicone; we mask and use low-modulus polymer instead. Rear outshut kitchens often have flat felt roofs at 2.1m — glass and frame heights are set to clear the eaves.