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Security · Survey

Shopfront shutters during the day

Updated

A fully closed anthracite security roller shutter over a ground-floor window on a yellow London stock brick terrace, late afternoon light and long shadows. Wide view of the whole elevation.

Solid shutters that stay down in trading hours kill a shop and often fall foul of design guides. Vision shutters and perforated curtains exist so a display can still be seen.

Sun, in watts

The worked opening for Shopfront shutters during the day is 1.8 m wide by 2.1 m high, 3.78 square metres of glass. This figure puts 595 watts per square metre on the pane and uses a g-value of 0.7, about 1574 watts into the room if the curtain is up. An opaque external shutter, taken as stopping 85 percent of that gain while it is fully down, leaves about 236 watts and keeps about 1338 watts out. That is a noon figure for comparison. An internal blind does not get the same reduction. For Shopfront shutters during the day, use the noon figure to compare two openings on the same house, then let a measured survey replace the figure.

An internal blind does not get that reduction, because the energy has already crossed the glass.

On this opening

The planning drawing should show the shutter in the position the shop will actually use at 11am, not only at midnight.

The same glass in winter

Winter figure for Shopfront shutters during the day: glass at 1.4 W/m2K, 3.78 square metres, a 12 degree inside-outside gap and eight night hours. The bare pane is about 0.51 kWh a night on that crude sum. A closed shutter cutting about 24 percent of the flow leaves 0.39 kWh and saves about 0.12 kWh a night, only while it is down. Open it when you want winter sun.

I would not order yet

Stop Shopfront shutters during the day if the solar panel would sit in a soffit with no sky, and the quote has no wired alternative. A photograph is not a manufacturing size.

Wolverhampton is only a setting for Shopfront shutters during the day. The streets there are not the product.

How to use the figure

The 1.8 by 2.1 metre opening inside Shopfront shutters during the day is there so a quote has something to disagree with. If the tape gives a different size, the tape wins.

The example drive is a wired motor, and the illustration is £2,485. A belt, a wired motor and a solar motor can share a curtain and still be different jobs. Compare those lines, not a single bold total.

What the survey still has to write down

For Shopfront shutters during the day, ask where the box lands, what colour reference will be ordered, and how the curtain opens when the motor is dead. Those three answers move the job more than a rounded price.

Leave the lantern, the side light and the next elevation off the order unless they are drawn. Shopfront shutters during the day covers one kind of opening. The house may have three.

When I would not order yet

Shopfront shutters during the day should wait if the opening is an escape door with no way to raise a dead motor, or if the front is the elevation a conservation area was drawn to protect.

A photograph is not a manufacturing size. Two quotes for Shopfront shutters during the day only compare when the slat, the box and the drive are the same kind of thing.

Questions worth asking the fitter

Is the price on this page a quote?

No. £2,485 illustrates Shopfront shutters during the day for a 1.8 by 2.1 metre opening with a wired motor, at September 2026 rates. Your survey replaces it.

Does the shutter cover every pane?

It covers the opening it is built for. Here that example is 3.78 square metres. A roof lantern, a side light or the next elevation is another line.

What if planning is unclear?

Do not pay the factory for Shopfront shutters during the day until a listed building, a conservation front, a flat or a shopfront has a written answer. Ordinary rear walls on houses are sometimes simpler.

What should two quotes share?

The same openings, the same slat type, and the same drive. Shopfront shutters during the day uses a wired motor in the example so you can see how much the motor choice moves £2,485.

Sources