KENSINGTON ROOF NOTES KENSINGTON ROOF NOTES KRN Kensington Roof Notes
Roofing guide

Re-roofing Shepherd's Bush Victorian Housing Stock

Re-roofing in Shepherd's Bush usually means stripping a Victorian terrace roof back to its rafters and rebuilding the covering — slates, battens, underlay and flashings — rather than patching isolated slipped slates. On the area's dense two- and three-storey terraces, where roofs run continuously between properties, a full renewal is often the only way to deal with widespread nail fatigue and a perished underlay. This guide explains when that point is reached, what the work involves, and the complications specific to terraced and converted housing.

Plans and survey data produced by Shepherd's Bush re-roofing

Knowing when a terrace roof is past patching

A roof needs full renewal when the failures are systemic rather than local. The classic sign on Shepherd's Bush slate roofs is "nail sickness" — the iron nails holding the slates have rusted through, so slates slip regardless of how many are re-fixed. Once you are calling someone back every winter for fresh slips, the covering as a whole has reached the end of its life.

Other indicators include a sagging ridge line, daylight visible through the boarding from the loft, and an underlay that crumbles when touched. Many of these terraces retain their original Welsh slate and Victorian softwood battens, both well over a century old. A surveyor will typically inspect from inside the loft as well as outside, because the condition of the timber and felt is hidden from the street.

What gets stripped and replaced down to the rafters

This guide explains when that point is reached, what the work involves, and the complications specific to terraced and converted housing.

A full re-roof removes everything above the rafters. The slates come off first, and sound ones are sometimes set aside for reuse, though Victorian slate is often too brittle to salvage in quantity. Beneath them, the old battens and the bitumen felt underlay are stripped out entirely.

The replacement build-up usually involves:

  • A breathable membrane — a modern underlay that lets water vapour escape from the loft while keeping rain out, reducing the condensation problems that affected older felt.
  • New treated softwood battens, gauged to the slate size.
  • New or reclaimed slates, fixed with non-ferrous nails such as copper or stainless steel.
  • New lead flashings to chimneys, valleys and abutments.

Rafters themselves are usually retained unless rot or beetle damage is found once the covering is off. Any such defects, along with renewing rotten gutter boards or fascias, are commonly priced as provisional work because they cannot be confirmed until the roof is open.

Shared roofs and party-wall junctions

Terraced roofs in Shepherd's Bush rarely stop neatly at a boundary. The slope often continues over the party wall — the wall shared with the neighbouring house — and the junction between two properties can sit mid-slope rather than at a clean edge. This matters because re-roofing one half affects the watertightness of the join with the other.

Work that affects a shared party wall or the structure at the boundary can fall under the Party Wall etc. Act 1996, which may require notice to the adjoining owner before work begins. Where two neighbours re-roof together, the junction can be rebuilt as a continuous covering. Where only one side proceeds, a roofer has to form a proper weathered detail against the neighbour's slates, and the long-term watertightness of that line depends on both halves being maintained.

Roofs on rentals and converted houses

A large share of Shepherd's Bush stock is let — whole houses converted into flats, or single dwellings under one freeholder with several tenants. Re-roofing here carries practical and legal considerations beyond the building work itself. Where a house is split into leasehold flats, the cost of major roof works is often recovered through service charges, and consultation requirements under landlord and tenant legislation may apply above certain thresholds.

Occupancy also shapes scheduling. Heavily occupied houses mean scaffolding, noise and restricted access affect more people, and a managing agent or freeholder usually coordinates timing. For a landlord budgeting a replacement, the realistic planning horizon is the whole roof rather than a slate at a time — once nail sickness sets in, piecemeal repairs tend to cost more across a few years than a single planned renewal.