Roofers in Cowplain

The county history of 1908 describes Cow Plain as a hamlet on the main road to Portsmouth, roughly two miles south of Horndean, in the parish of Catherington. It sat on the road between Horndean and Waterlooville, as Cowplain does now. For a roofer, the more useful record sits on the house itself, in its tiles, battens and underlay, and it can be read on any roof in the district. Whatever your house is made of and whenever it went up, the roof has a story, and it is written on the roof itself.

1.1 Reading a roof of unknown age

Start at the covering. Hand-made clay tiles show slight curves and uneven colour. Machine-made concrete tiles are flat, regular and evenly coloured. Slate is thin and flat, and it lies in neat overlapping rows. The next clue is underneath. Old sawn battens with rusted nail heads, or modern machine-cut battens with clean fixings, give the date away more reliably than any estate agent's brochure. Then comes the underlay. Black bitumen felt that cracks at its laps belongs to an earlier generation of building than a breathable membrane does. We photograph each of these, and the pictures are yours to keep.

1.2 What age means for the choice

A roof does not have to be replaced because it is old. Slipped tiles, perished ridge pointing and a lifted flashing are repairs. Age matters where fixings and timber are concerned. If nails have rusted through or battens have rotted, a patch will not last long, and we tell you so plainly rather than sell you a repair that will fail. Marley expects concrete tiles to last around 60 years and says that figure is no guarantee. The parts that fail first are often not the tiles at all but the details: ridge bedding, verge pointing, lead at the stacks and the gutters beneath. Our roof repairs page explains how a small job is scoped, and our pitched roofing page covers the point where a repair stops making sense and a new covering starts to.

1.3 Garages, porches and extensions

Many houses also have a flat-roofed garage, porch or rear extension, and these usually fail before the main roof. Old felt cracks, edges lift and water ponds where the fall is too shallow. The deck underneath matters as much as the covering above. If the boards are soft, a new covering laid on top would trap the problem. BS 6229:2025 asks for a finished fall of at least 1:80. Our flat roofing page compares the membranes on offer and shows how the falls are formed.

Havant Borough Council lists 14 conservation areas, and none of them is named for Cowplain. Of the council's Article 4 directions, the roof-relevant ones are in Langstone and Homewell, with three land-use directions on Hayling Island, and Cowplain falls under none of them. For an unlisted house that keeps the planning picture short: putting back the same covering is not usually development at all, and the council's planning team can confirm the position for a specific address. A listed building is different. Anything that affects its character needs listed building consent, wherever the house stands.

3.1 What neighbouring directions remove

It helps to know what a direction does, because the answer is different a few miles away. In Langstone, Havant's direction covers unlisted buildings and takes in alterations to the roof of a house that fronts the highway, such as inserting roof lights, and the demolition of a visible chimney stack. None of that applies to Cowplain. It does show why a roofer from another town cannot assume your street is free of such rules, and why we check the council's records first. Homewell in Havant is older still: its direction is dated 26 July 1985 and leaned on Class I of the 1977 order, which covered the enlargement, improvement or other alteration of a dwellinghouse. Different directions remove very different rights, which is why the wording of each one matters.

3.2 Building control for a re-roof

Havant Borough Council is also the building control body. Under the Planning Portal's thresholds, a re-roof normally avoids a building control application when it touches under 25 per cent of the building envelope and under 50 per cent of the roof. A new covering that is at least 15 per cent heavier than the old one needs approval too, and so does one with a different fire performance. Approved Document L treats a new waterproof membrane on a flat roof as renovation, and once over half the surface of a roof element is renovated the insulation has to be upgraded. We explain which side of those lines your job falls on.