Gwithian: Sand-Blasted Salt Air Needs a Serious Door
By Cornwall Composite Doors · 25 August 1969 · 4 min read
Gwithian's dune-side homes near Godrevy face some of the most abrasive coastal conditions in Cornwall — here's how we specify for it.
Sand as well as salt
Gwithian is unusual among Cornish coastal villages in that its exposure includes wind-blown sand as well as salt spray — the dunes running toward Godrevy mean properties here take a genuinely abrasive combination that most coastal towns don't experience to the same degree. This affects not just the door's finish but the seals and moving parts too.
Why abrasion matters for seal life
Sand carried on strong onshore wind can work into door seals and hinge mechanisms in a way that pure salt spray doesn't, gradually wearing at rubber seals and grit-filling hinge pins. We fit an uprated weatherseal here and specify hinges that tolerate this kind of grit exposure better than a standard fitting would.
Finish durability against sand-scouring
The GRP skin on a composite door is far more resistant to fine abrasion than painted timber, which would show scuffing and dulling from blown sand within a season or two. The bonded colour finish and 10-year colour-fastness guarantee both assume normal coastal exposure, and Gwithian's conditions, while more abrasive, are well within what the finish is built to handle.
Covering Gwithian alongside Hayle and St Ives
We fit doors in Gwithian as part of our regular Hayle round, with the same marine-grade specification and 10-year guarantee we'd use in any seriously exposed coastal village.
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