One model, two gardens
Picture the same door fitted to two houses. One sits under a deep canopy on a north-facing entrance; the other is three hundred metres from the shore, facing south, with no shade at all. After three years they are not the same door. The first keeps its original tone; the second may show lifted edge banding, a dulled handle and a hardened gasket. The difference is not build quality. It is load.
Load one: sunlight
Ultraviolet light breaks down the pigment in paint and facing over time. It shows first as loss of gloss, then as a lightening of tone. Dark colours suffer twice, absorbing more heat and showing tone loss more plainly. On a south or west entrance a black or dark anthracite leaf becomes too hot to touch by mid afternoon, and that heat creates different expansion between core and surface.
Two practical answers: choose a facing rated for external UV exposure, and keep deep colours for elevations that do not take direct sun. If the colour is non negotiable, matt is more forgiving than gloss, because it reveals tone loss far more slowly.
Load two: water
Rain damages a door two ways. Wetting tires the surface, but the real trouble is where water stands. The bottom edge of the leaf, the lower corners of the frame, the underside of the glazing bead and the gap between leaf and threshold: water collects there and is drawn in by capillary action. Corrosion almost always begins at one of those four points.
A canopy is the cheapest way to cut that load. A projection of 80 to 100 cm beyond the door face intercepts most vertical rain. Without one, threshold and drip details matter more, because water has to be steered from the leaf onto the threshold and off it. Paving that falls gently away from the door pays for itself over years.
Load three: salt
Near the coast, airborne salt settles on the door and combines with moisture into a conductive film that accelerates corrosion. It attacks ironmongery hardest: handle, cylinder, hinge pin, glazing bead screws. On seaside houses it is common for the leaf to look fine while the handle and hinges give up first.
The answer lies in material choice, with stainless ironmongery, enclosed hinge bodies and coated screws. One habit helps too: wiping the surface with fresh water every couple of months removes the salt before it settles in.
The metal under the surface
Outdoors the real insurance is not the facing but how the steel beneath it is protected. Galvanised sheet, primed cut edges and properly closed edge banding set the lifespan regardless of what the door looks like. Inspect the bottom edge of the leaf: nobody sees it, which is why it gets skipped in production, and it is exactly where water arrives first.
Glass, gaskets and beads
On a glazed villa door the likeliest entry point is the joint between glass and bead. A drip channel on the underside of the external bead stops water being pulled off the glass into the bead. Gaskets harden over time, and one that has lost elasticity no longer makes full contact, which is where wind whistle begins. Replacing a gasket is cheap and quick; leaving it is what eventually costs you the leaf.
A short map by elevation
- North facing with a canopy: you are free on surface, veneer included.
- South or west with no canopy: UV rated composite, light to mid tone, matt finish.
- Coastal strip: stainless ironmongery, enclosed hinges, regular fresh water wipe.
- Exposed and windy: strong shoot bolts on the narrow leaf and a door stay as standard.
- Snow and ice: careful threshold, bottom gasket and leaf clearance.
Ten minutes, once a year
Maintenance is not complicated. Wash the face with neutral soapy water, look over the edge banding and the bottom edge of the leaf, put light oil on the hinge pins, press the gasket to test its spring, and check the glazing bead screws for tightness. Those five steps noticeably slow the rate of wear.
If your elevation is a hard one, say so while choosing. The glazed villa steel doors range includes surface and ironmongery combinations better suited to exposure, and the composite doors group earns its place on unsheltered entrances. Send orientation, canopy projection and distance from the sea with your measurements and we will advise and quote for those conditions. For a secondary lobby door, the building entrance doors group is worth a look too.