Felt roofing prepared from the deck upwards
Stable base first
We check the deck and falls before applying the new built-up covering.
Waterproof upstands
We finish walls and raised edges where flat roofs commonly develop leaks.
Repair or renewal compared
We judge local damage against the condition of the wider felt surface.
Modern felt fitted over a stable roof deck
A felt roof works as a built-up weatherproof covering, not a loose layer rolled over whatever is already there. We inspect the deck, form suitable falls and prepare the surface before the new system is applied. Felt suits many garages, extensions and straightforward flat-roof shapes. For felt roof replacement in Northampton, we also examine the old covering for cracking, blistering and signs that moisture has affected the substrate. Removing a worn surface gives us the chance to deal with defects beneath it. The finished covering then has the firm, even base it needs to shed water and resist everyday weather.
Edges and upstands finished to turn water away
Water often gets into felt roofs at the details rather than through the open middle. Drips, outlets, corners, wall junctions and raised upstands all need careful finishing. We form these areas to keep water on top of the system and lead it towards the drainage points. If a roof has one isolated split and the surrounding felt remains sound, a local repair may be enough. Replacement becomes more practical when cracking or blistering is widespread, joins have failed in several areas or the deck has deteriorated. We compare the condition across the whole roof so you do not pay for repeated patches where the covering has broadly worn out.
Frequently asked questions
Can new felt be laid over the old roof covering?
That depends on the condition and specification of the existing roof. A damaged, wet or unstable base should not simply be hidden. We inspect the covering and deck, then explain what preparation or removal is needed before the new felt is applied.
When is a felt repair better than replacement?
A repair can suit one isolated defect where the nearby felt and substrate remain sound. Replacement is more sensible when cracking, blistering or failed details are spread across the roof. We assess the extent before recommending either route.
Which felt-roof details are most likely to leak?
Edges, outlets, corners, wall junctions and upstands often receive concentrated water or interrupt the main covering. We finish these areas carefully and check that falls guide rain towards the outlets instead of leaving it beside a vulnerable join.