Roller Blinds for Brooklyn's Veranda Windows

Brooklyn does not have one kind of window. Walk two blocks off the café strip and you pass a face-brick house with tall timber sash windows set back behind a deep veranda, then a split-level with steel casements, then a glass-heavy addition bolted onto the back of either one. A roller is one of the few blinds that handles all three without looking like a compromise — but it wants a different specification each time, and working out which is most of what happens at the measure.

Fabric first. Colour is the easy part.

Almost everything about how a roller behaves is decided by the cloth on the tube. Settle that and the colour choice takes ten minutes.

Blockout is a coated fabric with no light path through it at all, and it carries a real thermal benefit in both directions — heat out in January, warmth in on a cold Pretoria morning in July. It earns its place in bedrooms, nurseries and any room with a screen in it. Summer here gets properly light before five, and that is when people notice the difference.

Sunscreen is a woven mesh, and the number attached to it — the openness — is simply how much of that weave is hole rather than yarn. A 3% mesh is tightly woven, a 10% mesh is loose. Tighter means less glare, less heat and more daytime privacy. Looser means a crisper view and a brighter room. West-facing glass in Brooklyn takes the full afternoon load from about two o'clock and is usually a 3% or 5% job; a shaded east room can carry 10% happily.

Here is the part that catches most people out. A dark mesh gives you the better view out; a pale mesh gives you the brighter room. Charcoal absorbs the glare instead of scattering it, so the garden reads clearly through the weave. White and pearl bounce light back at you and wash the view out. So the usual answer is charcoal on the windows you actually look through, something paler where the blind is mostly there to soften a wall.

Light-filter fabric sits between the two: solid enough for complete privacy, translucent enough to keep a room glowing rather than dark. Bathrooms, and street-facing dining rooms where you want the light but not the passing view in.

Inside the reveal, or across the wall

An inside-mount blind sits within the window recess. It looks tidy, it leaves the architrave and the original timber on show, and on a deep old reveal it is nearly always the better-looking call. The cost is light. A roller has to clear its own brackets, so a thin gap runs down each side, and in a bedroom that gap is precisely what wakes you at half past four.

A face-fix blind mounts on the wall above the opening and overlaps the frame by roughly 60 to 100mm on either side. Less delicate on a heritage window, far better at stopping light. Where a room genuinely has to go dark we fit face-fix, and where it still matters after that, we add side channels.

How you actually operate it

A chain is the cheapest and the most common, and every corded blind we fit gets a tensioner screwed into the wall so the loop cannot hang slack. That is standard, not an extra. A spring-assist blind does away with the chain altogether — you take hold of the bottom rail, set it where you want it, and it stays there, which suits small windows and children's rooms. Motorising starts to make sense past about two metres wide, on anything you would need a ladder to reach, and on a run of windows you would otherwise walk along one blind at a time.

When we would talk you out of one

A roller is not always the right answer, and it is cheaper for everyone if we say so at the measure. On a tall sash window in an original Brooklyn front room a timber venetian usually looks better and hands you the hour-by-hour control a flat panel cannot give. On very wide unbroken glass the fabric width becomes the constraint, and the real choice is between a visible join and splitting the span into linked blinds. And in a room where the window itself is the feature, a big plain sheet of cloth can quietly flatten the thing you liked about it.

What a roller blind costs here

Read these as a guide per square metre, installed, not as a quote. A manual roller — chain or spring, in blockout, sunscreen or light-filter cloth — sits between R1,000 and R1,600 per square metre. A plain blockout in a standard colour lands near the bottom of that; a low-openness sunscreen, a double roller on one bracket, or a cassette with a colour-matched fascia pushes toward the top.

Add a motor and that blind moves to R2,500 – R3,800 the square metre, which covers the tube motor, the remote or keypad you choose and setting it up on the day. Two caveats before you reach for a calculator. A small window carries a minimum charge, because a scullery pane needs the same brackets, tube and half-hour on a ladder as a big one does. And the number that matters is the one written against each opening after the free measure, which is the only point at which reveal depth, picture-rail height and fabric width stop being guesses.