Does opening blinds in winter make it colder?
Sunshine streams in through the window, and the gap in between the window and blinds captures the heat, producing a greenhouse effect. In the winter, this is a desirable effect, and in the summer, when you want it to be cooler in your home, all you have to do is raise the blinds to leave the window uncovered.
Smart Home Cooling Tips. Close your blinds and curtains. Keeping your blinds closed during the day will reflect a surprising amount of heat radiating in through windows, especially during the time of day when the sun's rays shine directly on your home.
Can blinds keep heat in your home and stop or lessen the degree to which it escapes out of the windows? Yes, all blinds help to keep the warmth on the inside (assuming that the issue is heat loss from the windows rather than generally poor insulation) but some types of blinds are much better at this than others.
Yes, blinds are good insulation for windows, regardless of the type of blind you use. This is because the closed blind forms a barrier (that is permeable to various extents depending on the blind), which helps to keep heat in, cold out, and to take the edge off draughts from rattly windows.
Blinds insulate your home by trapping a layer of air between the fabric and the window when correctly measured and installed. This effectively seals the windows, preventing air from escaping through them. Pull up the blinds during the day for the best effect, allowing sunlight to warm the house.
When completely closed, highly reflective blinds can reduce heat gain by around 45 percent, says the DOE. They can also be adjusted to block and reflect direct sunlight onto a light-colored ceiling, which diffuses the light without much heat or glare.
People wanting a healthy night's sleep should ALWAYS close the curtains or blinds and switch off the bedroom light, according to a new study. Researchers found that even sleeping in a moderately light room increases the risk of heart disease and diabetes.
Keep blinds open during the day. Not only will this practice save you some money on energy bills during the winter, but it can also keep you and your family healthier. Read on to find out how sunlight can kill harmful bacteria present in the dust in your rooms.
Window blinds—vertical (Venetian blinds) or horizontal slat-type (louvered-type)—are effective at reducing summer heat gain and reducing glare, while providing good daylight indoors.
The very best window blinds that keep the cold out are Duette blinds. Duette blinds have a honeycomb design which helps trap a layer of air inside the blind, so the blind works in a similar way to your double glazing. Making them fantastic for insulation.
Which way do blinds keep out the cold?
When blinds are closed with the slats turned up and the rounded side facing out, the heat is directed towards the ceiling, which helps keep the room cooler.
Privacy: Blinds provide an effective way to control the amount of privacy in a room. By adjusting the slats or pulling them completely closed, individuals can prevent outsiders from seeing inside their homes or offices.

Closed blinds serve to deflect the sun (and so, heat) before it gets into the room, which reduces unwanted solar gain and helps to keep your home cooler in turn.
Because blinds leak more heat from a room, they also decrease indoor heat gain more efficiently in the summer, by around 45 percent, which can lower your AC bills. Curtains, which leak less heat, reduce indoor heat gain by only 33 percent in the summer.
Thermal blinds are generally superior at insulating than to curtains, even curtains made with insulated linings.
Curtains are soundproof and offer better insulation
Because blinds require slats to function, heat can easily escape through the slats. Whereas, curtains don't require slats so heat is easily maintained. The thicker the curtain is the more insulated they are.
- Secondary Glazing. ...
- Insulating Curtains. ...
- Draught Snakes. ...
- Weather Strips. ...
- Strategic Caulking. ...
- Window Insulation Film. ...
- Window Insulation Tape. ...
- Get a Secondary Glazing Quote and Keep Draughts Out of Your Home.
Around 18% of the total heat within a house is lost through the windows. This heat loss through windows is caused by radiation through glazing, convection and conducted through the window frame.
In the winter, if you have south-facing windows, let the light shine in. The sun will help heat your home naturally, which takes some pressure off your furnace. For other windows, keep blinds and curtains close during the winter to keep heat inside your home.
While you may be focused on removing the dust in your home, according to an article published in Science Daily, letting the sunshine into your home through the windows can actually kill bacteria that live in the remaining dust and this can help decrease the risk of respiratory issues.
Why do people sleep with the blinds open?
Leaving your blinds or curtains slightly open will also help suppress melatonin production, helping you to resist 10-minute snoozes.
The closer your blinds are hung to the window itself, the better they will serve as an insulator in both summer and winter. This means that hanging your blinds inside of the window recess will help to keep your room cooler in summer than if you hang your blinds outside of the recess.
The best way to prevent this heat loss is to close your curtains and lower your blinds immediately after dusk. They provide an extra barrier to radiant heat loss, add insulation and reduce draughts.
If it's winter and likely to be sunny, open the window coverings in the morning to allow the sun to heat your home through the day—especially those that receive direct sunlight. In the summer, you may want to keep window coverings closed to reduce heat gain.
Close your blinds and curtains as soon as it gets dark and cold in the evening as they will help to keep warmth in your home. Make sure you close them completely and there are no gaps. If you keep the cold out and the warmth in this also helps with the build-up of condensation.
Curtains are soundproof and offer better insulation
The thicker the curtain is the more insulated they are. However, in summer, blinds are better than curtains for energy efficiency. This is because heat escapes easily through the slats.
The honest answer is all window blinds will help keep the cold out, if you use them properly. It is very simple, close your blinds in the early evening and leave them closed until the morning. This will keep as much heat inside your home as possible.
Vertical blinds are the best blinds for winter because they have vanes that can be adjusted to direct sunlight away from your home. This helps keep heat in and keeps your house warmer during colder months.
By closing the blinds, you keep direct sunlight out of your home and reduce unwanted solar heat gain. Closing window blinds help save energy in the winter since, during cold nights, heat is lost through windows. Closing the blinds will add some insulation to the windows, reducing heat loss.