Where the name comes from
Most roofs we fit go on in one dry day. The old sheets come off a section at a time, the panels go down, and the joints are sealed before the light goes. Bigger or more awkward roofs take two days. The sealant needs dry surfaces to grip, so the one thing the job cannot do without is a day with no rain between morning and mid afternoon.
That turned a weather forecast into the most important document on the job. The name is a reminder of it.
Two things under one roof
One Dry Day is a roof service first. You tell the quote journey about your roof and see a guide price. A surveyor then visits, measures up, checks the frame is sound and puts a fixed price in writing. Nothing is paid before that visit. The guarantee on each roof lasts 10 years and is insurance backed.
It is also a data project. The Rain Ledger shows any town on our list day by day for 2024 and 2025, and the Noise Nights league table ranks the towns by how many nights brought rain hard enough to be heard on a thin roof.
- 100
- towns in the rain ledger
- 1,754,400
- hourly rain readings counted
- 65
- noise nights a year in the average town
How the rain data was made
We pulled every hour of rain for 2024 and 2025 from the Met Office UKV model, which divides the country into cells 2 km across, through the Open-Meteo weather service. For each town we then counted three things. A dry working day is one with under 0.2 mm of rain between 8am and 4pm, the Met Office threshold for a rain day. A noise night is a night between 11pm and 7am with at least one hour of 0.5 mm or more. A heavy hour is one over 4 mm.
A model cell is not a rain gauge on your lawn, and two years is a short record. The method page sets out every rule and every limit, so you can decide how far to trust the figures.
What we will claim, and what we will not
A panel roof is a solid, insulated lid on a glass room. Its U-value is about 0.43 W/m²K, a big step up from old polycarbonate, but the glass walls stay glass, and it remains a conservatory rather than a brick room. We will say that plainly at the survey.
On rain noise we have to be just as plain. Polycarbonate and roof glass have been measured in a lab, and those results appear on our rain pages with their sources. Nobody has published a rain noise test for 75 mm aluminium skinned foam conservatory panels, and we have not tested ours. The build has no hollow flutes, a foam core bonded to both skins and a solid ceiling below, but without a measurement we give no decibel figure for it and make no claim that it is quieter by any number.
What we leave out
You will not find customer stories, star ratings or headcounts on this site, because we only publish what we can stand behind. We fit panel roofs and nothing else: no new conservatories, no heavier solid roof systems, no windows. If your frame is not sound enough to carry a new roof, or a cheaper fix would do, the surveyor will tell you so. The cost page shows the price bands openly, before anyone visits.