How do you survey an older Southborough roof?
Outside, we trace each slope for slipped, cracked or chipped tiles, then the ridge, the hips and the joins at chimneys and walls, with a look at the fascia and gutter along the bottom edge. Then we climb into the loft. Roofs that have stood a long while have normally been mended more than once, and the loft records it: a new rafter sitting beside an old one, a patch of fresh batten, two kinds of underlay meeting halfway down a slope. We photograph what we find and mark where the older work stops, so you can see the repair history for yourself rather than take our word for it. If your house has a flat-roofed extension or a lean-to at the back, it gets the same treatment, because a later addition is often where the oldest roof meets the newest, and the join between them is where moisture likes to creep through.
What do those layers of repair tell us?
They tell us where water has been getting in. A string of old patches around one chimney points to its flashings, or to the flaunching, the sloped mortar cap that grips the pots, rather than to the tiles around it. Patches along the bottom of a slope tend to point at the gutter or the eaves. Reading the pattern stops us replacing sound tiles to cure a fault that lives in a metal strip or a mortar joint. Our pitched roofing page sets out the work on tiles, battens and underlay that follows, and the chimney repairs page deals with stacks, pots and flashings.