Exmouth’s salt aerosol from the English Channel oxidises lead flashings 30–50% faster than sheltered inland sites. Lead flashings are the most common single point of water ingress on Devon roofs, and the consequences of a failed flashing — damp penetration to the roof structure, ceiling and internal walls — are expensive to remedy. We carry out all lead work across Exmouth with marine-grade patination oil and coastal-rated code specifications. Call 01392 759 295.
Lead fails through thermal fatigue. It expands in summer heat and contracts in winter cold, and over time the metal cracks at folds, drips and stress points. In Exmouth’s climate, this cycling is significant — and on the most exposed properties, the service life of original lead is shorter than elsewhere. We carry out a full lead condition assessment on every Exmouth survey: step flashings, apron flashings, back gutters, valleys and parapet gutters are all inspected, not just the point of the presenting leak.
We specify lead by code for each application: code 4 for step and cover flashings, code 5 for valleys and parapet gutters where water stands. Under-specification of lead is one of the most common causes of premature flashing failure on Exmouth properties — and one of the most frequently seen errors when we take over from a previous contractor. We dress all lead correctly and solder joints where standing water is present.
Lead flashing in Exmouth’s coastal environment has a service life approximately 30–40% shorter than equivalent flashings on sheltered inland properties. Salt aerosol oxidises the lead surface at a higher rate than atmospheric oxygen alone, accelerating the stress cracking that develops through thermal cycling. On properties within 500 metres of Exmouth seafront, we inspect lead condition at every visit and apply patination oil to new installations as standard. The patination oil slows oxidation and extends flashing life measurably in the EX8 coastal zone.
Lead code specification matters in Exmouth’s coastal environment. Code 4 is appropriate for step flashings and cover flashings on sheltered elevations. On Exmouth’s exposed south and west-facing chimney stacks, code 5 step flashings provide greater resistance to wind uplift and a longer service life before stress cracking develops. Valley lead on coastal properties should always be code 5 — the combination of standing water risk and marine humidity makes under-specification the most common cause of valley failure we encounter on Exmouth properties.
Soldered joints in Exmouth lead work are more important than on inland properties. Salt aerosol penetrates any gap at a lead joint and accelerates corrosion at the joint edge. All welted joints on Exmouth valleys and parapet gutters should be soldered, not just folded. We use appropriate solder flux that is compatible with lead and does not leave a corrosive residue in the marine environment. We also apply a bead of marine-grade sealant at the lead-to-masonry interface on all Exmouth chimney flashings — this point is the most vulnerable to salt aerosol penetration on any coastal chimney installation.
Free survey and itemised quote — no call-out fee, no obligation.
📞 Call 01392 759 295“Lead flashing replacement on our chimney stack. Full replacement, not a patch job. No more damp in the bedroom.”
“Valley lead replaced on our Victorian property. Code 5 lead specified correctly. Clean job and no mess left.”
“Back gutter lead on our dormer replaced. They found secondary failure points during the survey. Good thorough approach.”
Step and cover flashing replacement from £350–£700. Valley lead from £500–£1,200 depending on length. Free survey. Call 01392 759 295.
Thermal fatigue — expansion and contraction cycles crack the metal at folds and stress points. Exmouth’s salt aerosol from the English Channel oxidises lead flashings 30–50% faster than sheltered inland sites accelerates this process on exposed properties.
Small cracks on otherwise sound lead can be sealed. If the lead is heavily fatigued with multiple failure points, full replacement gives a better long-term result. We advise honestly at the survey stage.
Code 4 for step and cover flashings. Code 5 for valleys, parapet gutters and any application where water stands. Under-specification is a common cause of premature failure.
Yes — on all joints where water could stand. Soldered joints are standard practice on valleys and back gutters.
A chimney lead replacement takes a full day. Valley replacement may take 1–2 days depending on length.
Yes — 10-year workmanship guarantee on all lead installations. Call 01392 759 295.
No call-out fee. No obligation. A local roofer who turns up when they say they will.
01392 759 295