The low temperatures of the polar wave force a rethink on how to keep the heat inside the home in winter.
Architects and interior designers agree that the key is to combine good insulation practices with everyday decisions that optimize the available energy.
Materials that retain heat
Porous materials act as air traps, retaining heat and functioning as natural insulators.
- Textile decoration: carpets, curtains, cushions, and upholstery help store heat.
- Coverings: wooden floors, wallpapers, and fabric-covered walls reinforce the thermal sensation.
- History: in times without heating, tapestries in castles played a key role in conserving temperature.
Windows and enclosures
Openings are critical points of energy loss:
- Double glazed windows (DVH) with PVC or aluminum frames with thermal break.
- Thermal curtains and blinds: close them at sunset to retain accumulated temperature.
- Joint sealing: prevent cold air leaks in frames and doors.
Solar orientation and architectural design
Specialized architects highlight the importance of orientation:
- Facing north: greater entry of natural light and heat.
- Room distribution: living room and kitchen in sunny areas; bathrooms and laundries in cooler areas.
- High thermal mass materials: concrete, brick, or stone in areas with direct light, storing heat during the day and releasing it at night.
- Wall colors: light colors to reflect light indoors; dark colors outdoors to absorb heat.

Heat losses in the home
According to the National Association of Insulating Material Industries (Andima):
- Roof: responsible for 40% of heat loss.
- Walls: 30%.
- Floors: 10%, especially critical for children playing on the floor.
Recommended insulating materials
To improve thermal efficiency, the following are suggested:
- Glass wool.
- Expanded polystyrene.
- Polyurethane.
With efficient insulation, you can save up to 35% on total energy consumption and up to 70% on electricity and gas bills used for heating the home.
Additional practical tips
- Strategic use of heaters: place them in common areas and avoid little-used rooms.
- Closed interior doors: help concentrate heat in specific areas.
- Brief and controlled ventilation: open windows only for a few minutes to renew the air without losing too much temperature.
- Indoor plants: besides decorating, they help regulate humidity and improve air quality.
The polar wave forces the combination of architectural design, suitable materials, and daily habits to keep the house warm and efficient. From the choice of insulators and colors to the use of curtains and blinds, every detail adds up to face winter with greater comfort and lower energy costs.



