Local Shutter InstallersSubject
Heat
Summer gain through glass, and what a closed external curtain changes. 18 guides.
SeasonA roof lantern that cooks the kitchen
Lantern glass faces the high sun. A wall shutter on the bifold does not shade it.
SeasonA south-facing patio door in Britain
A south patio door is the ordinary UK version of the German shutter photograph. It takes sun for much of the day in summer and it is a cold radiant.
SeasonAn external venetian when you want the garden
Tilted external slats can cut a large share of the sun and leave the garden visible. They will not lock the house and they hate being left down in a gale.
SeasonApproved Document O and existing houses
Approved Document O in England is about overheating in new residential buildings, and external shading is one of the strategies designers use. It is.
SeasonBlackout and heat control are not the same dial
A pinhole or perforated slat keeps some light and some view and stops less energy than a solid curtain. A solid curtain is the heat and blackout tool,.
SeasonConservatories and extensions are different ovens
A conservatory is almost all glass, including the roof, and a domestic window shutter cannot wrap it. An extension with a solid roof and a glazed rear.
SeasonEast-facing bedrooms and the morning hit
East glass dumps the sun into the room before anyone wants it, then goes quiet. A shutter or a roof-window blind on a timer can be down at dawn and up.
Long noteExternal shutters versus internal blinds
Internal blinds manage glare and privacy after the sun has entered. External shutters stop most of that energy before it passes the glass, and they can.
Seasong-value, in shutter language
The g-value is the share of solar energy the glass lets through. Clear double glazing is often around 0.6 to 0.7.
SeasonHow long shutters need to stay down
They work while they cover the glass that is in sun. A south rear wall may want them down from late morning.
SeasonPerforated slats and the daylight you keep
Small holes in the slat let you see that it is daytime and let a trickle of sun through. They suit a room you occupy while shaded.
SeasonShutters down, and how you still breathe
A fully closed curtain on a hot afternoon can leave a room dark and still warm if the heat is already inside. The useful pattern is shade on the sunlit.
SeasonSolar-control glass is not a shutter
Better glass lowers the gain and can make the room gloomier in winter. It does not give you blackout, a physical barrier, or a night-time cover.
Long noteStopping a south-facing glass extension from overheating
A south-facing kitchen extension overheats because the glass lets solar energy in faster than the room can lose it. The fix that matches the physics is.
SeasonThe 5 degree claim in shutter adverts
Adverts sometimes say a room will be 5 to 8 degrees cooler. That can happen in a glazed room that would otherwise bake, and it can fail in a house that.
SeasonWest-facing rooms and the evening bake
West glass is pleasant at noon and harsh at 6pm, which is when the house is full. That is the hour an external shade earns its money.
SeasonWhy internal blinds lose on a bifold
A bifold is a large pane with a high g-value. Sunlight becomes heat once it is indoors, and a blind then has to cope with air that is already warm.
SeasonZip screens on bifold doors
A zip screen is a tensioned fabric in side tracks. Good outdoor fabrics reject a lot of solar energy and keep a view.