Southern Suburbs Blinds FAQ: Oaks, Wet Winters And Old Windows

Because a tree canopy is a horizontal thing. It shades what is beneath it and does nothing for anything above it. In a treed street the hardest-working window in the house is usually the highest one, not the biggest one: the upstairs bedroom, the dormer, the gable window, the loft conversion and the roof light all sit clear of the leaves and take the full load, while the big ground-floor sliding door everyone assumes is the problem has been sitting in green shade since March. In practice we specify sunscreen for upper windows far more often than ground-floor ones.

Pure physics. A blind on a sloping or overhead pane cannot hang; it has to be carried in side channels top and bottom, or it bags away from the glass and stops doing anything at all. That is why a skylight blind is built differently and priced differently. Up there a cellular fabric is the usual choice, because a roof room swings hardest between a hot afternoon and a cold night and the air trapped in the cells works in both directions. The trade is that cellular fabric does not tilt, so where the roof window is also the only view, a sunscreen fabric in the same channels is what we would put to you.

A great deal. Winter rain rises steeply the closer a property sits to the slope, so on the wet end of the corridor where you fix matters as much as what you fix. Get under existing cover where you can: a headbox tucked beneath an eave or a veranda roof lives a far easier life than the same box on an exposed wall face. Ask about the drip detail, because water running down a wall will find the top of a headbox. Fixings are coated or stainless into sound masonry, worked out on site for old lime plaster and soft brick. And a tensioned screen in guides needs somewhere for rain to drain from the bottom of the channel.

Because outdoor shading almost never fails from sunlight; it fails from wind, and the south-easter finds the open ground. A zip screen is restrained on all four sides: the fabric edge runs inside a track down each side, the bottom bar is weighted and guided, and the roll is boxed at the head, so the wind load goes into the channels and the frame rather than into a loose edge. A folding-arm awning has no side restraint at all; the arms carry everything. That is fine over a sheltered patio, but it should be ordered with a wind sensor that retracts it before a gust, and you should ask for the wind class in writing.

Carefully, and after measuring at top, middle and bottom, because a frame that has moved over a hundred years is rarely square. Original sash and casement openings in the village run small and shallow, with moulded architraves and a sash that needs its clearance, so we generally face-fix onto the architrave rather than force a cassette into the recess. It reads as deliberate, the window still opens the way it was built to, and the proportions are respected. A timber venetian or a close-fitted roller usually suits these openings better than a bulky pelmet system.

Nearly always not. The defining feature of those steel frames is the near-total absence of a reveal, and the opening light swings inward onto a handle and a stay that a recessed blind will foul every single time. The honest answer is a face fix: brackets go into the plaster and brick above the opening, or onto a slim timber batten, and the blind runs wide of the frame, clearing the ironmongery entirely. We check the lintel and plaster depth on the day. One quieter point: steel conducts cold straight through, so in a closed-up bedroom that is where moisture collects first. That is a ventilation question, and we would rather say so than sell fabric to cover it.

Often, because those openings are square with real depth to them, so a recess fit with a cassette head tucks the tube out of sight completely. The constraint is span. A very wide single blind puts a lot of weight on one tube, and past roughly three metres of unbroken fabric the tube visibly bows and the fabric ripples and tracks off-centre. Beyond that we split it into two linked blinds on a shared bracket line and put the join on a mullion, so the line looks like part of the window. We will say when we think the width has run out.

No. Bergvliet Manor House, the Cape Dutch homestead at the heart of the old farm, is a Provincial Heritage Site, but that protection sits on the historic manor itself, not on the surrounding residential subdivisions. Ordinary Bergvliet and Meadowridge homes carry none of Wynberg Village's overlay restrictions. What Meadowridge does have is original deeds of sale that controlled tree removal from the start, which is why the garden canopy is a settled, permanent feature and the shade pattern on a property can be planned around with real confidence when choosing sunscreen over blockout.

It will manage it, not stop it. Sunlight passes through glass easily, and once it has landed on the floor and the furniture it has become heat, which leaves the room far more slowly than it entered. By the time a blind on the room side gets involved, the energy is already inside. Stopping it means intercepting it outside the pane: external venetian blinds that tilt the low beam back out while you keep the garden view, roller shutters that shade hard and add still air against the pane, or a zip screen where the job is an outdoor room. Where an outside fixing cannot happen, a light sunscreen mesh inside is the sensible second-best, cheaper and weaker on heat.

Possibly, and the question is asked early rather than late. Under the National Heritage Resources Act, altering any part of a structure older than sixty years needs a permit from Heritage Western Cape, and much of this corridor's older housing is past that age. Separately, the City of Cape Town applies heritage protection overlays to particular areas, Old Wynberg Village among them, and the City's planning office is where you find out about your own erf. The line is simple: a blind inside the reveal is a furnishing decision; a guide channel, headbox or awning cassette on an outside wall alters a structure. We supply drawings, product data and a written specification. The application stays yours.

Along the busier arterial edges of this corridor plenty of owners fit them as much for the drop in traffic noise as for the shade. Rigid slats roll down over the glass from a boxed head; they shade hard, they add a layer of still air against the pane on cold nights, and they give a bedroom genuine blackout. Said plainly, ours are a shading product for sun, heat and glare on the outside of the glass. They carry no security rating. If what you are after is a security-rated product, that is a separate thing which we will price on its own if you ask.

Not if the brief is genuine darkness. Even fully offset, the banded fabric is not true blockout; light seeps at the band edges, and through a Southern Suburbs winter the grey mornings stay grey longer. A nursery or a shift-worker's bedroom is better served by a blockout roller or a cellular honeycomb blind, or by pairing the day and night with a blockout behind it. The sheer bands are also more delicate around small hands and pets at reach height, and moisture-sensitive fabrics are wrong for a steamy bathroom, where an aluminium venetian handles the room better. Where it shines is living rooms, studies and street-facing windows on close-set streets.

It will soften the heat loss; it will not seal the frame. Trapped air is insulation, and a cellular blind's cells hold a still layer against the glass that genuinely helps an older single-glazed window on a wet, cool morning near the mountain, where single cells suit a mild room and double cells do the serious thermal work. But cellular fabric is a comfort and light-control product, not a structural draught seal. An old, ill-fitting sash with real gaps around it needs its own attention first, and we will say so plainly rather than oversell the blind as a fix for the frame.

Five details turn a vague call-back into a useful one. Where you sit relative to the slope: tight against the mountain, mid-way, or out on the flatter ground. Roughly when the house was built and what the frames are made of, since timber, steel or aluminium usually tells us the decade. Which way the problem window faces. What the actual complaint is: glare, heat, privacy, cold, noise or a room that is simply too dark, because these want genuinely different products. And whether anything may be fixed to the outside, meaning freestanding, sectional title, or a facade you suspect is overlaid or over sixty years old. That narrows the visit; only the visit settles the numbers.