Duck 286218 Extra Shrink Film Insulation kit, Crystal Clear, 1 Patio Door/Large Window

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Wooden French doors tend to be more efficient than their uPVC equivalents because the material is much denser. Heat, therefore, has a far more difficult time passing from one side of the material to the other. Insulating External French Doors Monitor indoor temperature: Over the next few days, pay attention to the indoor temperature near the patio door. You should observe a more consistent temperature and reduced energy consumption. By installing draft stoppers on the bottom of your doors and attaching door sweeps to seal any gaps at the bottom, you can prevent cold air from entering and warm air from escaping, ensuring better insulation for your patio doors. Install Draft Stoppers on the Bottom of Your Doors

Outward-opening French doors might also benefit from having their weather-stripping replaced. This is the compressible plastic that runs around the edge of the door. Over time, thousands of compressions will rob the material of its elasticity. This means that it won’t expand to the same size, and thus it won’t form a tight seal around the edge of the door. By replacing the sealing, you’ll hugely improve the door’s draught-excluding abilities – sealing of this sort can often be bought cheaply, and it’ll snap into place rather than needing to be glued. Consider adding draft stoppers or door sweeps to further enhance the efficiency of your patio doors without compromising on style or functionality. Consider Adding Draft Stoppers or Door Sweeps

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Increased Energy Efficiency: Insulated blinds or shades create an additional barrier between the outdoor elements and your home, preventing cold air from seeping in and warm air from escaping.

Home Value: Insulated outdoor doors can also make your home worth more. Potential buyers often consider energy-efficient features when evaluating a property, so having well-insulated doors can be a selling point.This shift is being noticed (and led) by architects, too. “In terms of patio doors, clients want large expanses of glass and less visual interruption, so the subdivided nature of bi-folds is really being designed out,” says architect Darren Bray from PAD Studio. How to Choose Patio Doors