The short answer
Hotels must combine three-zone vestibules, high-capacity air curtains, heated floors and ramps, automated and well-sealed doors, and strict snow-removal procedures. Safe drop-offs require a covered, heated pull-up area with anti-icing treatment and staff monitoring. Engineering solutions must be verified with thermal imaging and continuously adapted to weather extremes.
Key takeaways
- Triple vestibules with intermediate air space reduce heat loss dramatically in Astana's climate.
- Air curtains sized for doorway width and height cut cold-air infiltration by up to 80%.
- Heated concrete pads for drop-off zones are crucial to prevent slip hazards at −30°C.
- Staff should follow a predefined checklist, including reagent application and emergency repairs.
- Regular thermal audits identify weak points before the coldest periods, saving on energy and repair costs.
Entrance Design for Harsh Winters
The entrance is the thermal bridge between the Arctic outside and a comfortable lobby. In Astana, temperatures can drop below −30°C in winter, sometimes reaching −40°C on extreme nights. A properly designed hotel entrance includes a cold vestibule, a warm antechamber, and then the main door. All three layers are separated by automatic doors that never open simultaneously.
A mechanical ventilation system with slightly positive pressure in the lobby prevents cold drafts. High-performance thermal air curtains should be installed on the exterior doorway, with capacity calculated for the door height and local wind pressure. For typical hotel doors (2.7 m high), water-fed curtains with variable speed control are most efficient.
- Vestibule depth: at least 2.4 m (ideally 3.0 m) to avoid simultaneous door opening.
- Heated floor in the vestibule to prevent ice formation and keep the surface dry.
- Triple glazing with low-e coatings on all windows and door glass.
- Door closers must be equipped with back‐check to avoid slamming in windy conditions.
Safe Guest Drop-Off and Accessible Routes
A covered loading and drop-off area with heated pavement is essential. Guests arrive by car or taxi and must step directly onto a non-icy surface. Design the curb to allow passenger doors to open fully without stepping onto traffic lanes. The headroom of the canopy must clear the top of tall SUVs and minivans.
Ramps and slopes should be heated using hydronic or electric systems, with temperature sensors that activate mats automatically. Handrails should be insulated or have a thermal break to avoid cold metal contact. The drop-off zone should have a “kiss and ride” length of at least 15 meters to allow short waits without blocking other traffic.
- Under‐pavement heating for a minimum of 1.5 m from the curb line.
- Canopy slope of 3–5° to shed snow and prevent dripping.
- Ramp slope maximum 1:12, with non-slip surface.
- Staff must clear snow and re-apply de-icer every 2 hours when below −25°C.
Reducing Heat Loss Through the Entrance Zone
Even with a well-insulated building, the entrance can account for 10–20% of total heat loss. Air curtains alone are not enough; the vestibule doors must be properly sealed. Use automatic doors with a delay function that allows sufficient time for passage but closes quickly after each guest. Pressure sensors can adjust door timing based on air pressure differences.
Thermographic imaging before winter reveals missing gaskets, thermal bridges, and areas where cold air leaks. Sealing joints around door frames with silicone and installing brush seals at the bottom of doors can eliminate most losses. For large hotels, use revolving doors in the main entrance, which are the most energy-efficient in extreme cold, while keeping side sliding doors for luggage and groups.
- Use revolving doors for primary traffic to reduce infiltration by up to 80%.
- Install draft-proofing strips on all side-hinged doors.
- Ensure automatic doors have battery backup to avoid creating a barrier during power deadlocks.
- Monitor with temperature sensors placed 1 meter from the door; alert if temperature drops below +10°C in the vestibule.
Operational Plan for Extreme Cold Weather
Daily checklists are critical. When the forecast shows temperatures below −30°C, staff should increase the frequency of inspections and record findings. They must verify that heating cables for ramps and floors are working, that no ice parts are falling from the canopy, and that guests can open doors easily despite ice pressure.
In case of an air curtain malfunction, staff must isolate the affected entrance and direct guests to an alternative. Keeping spare parts (motor, heating elements) on-site reduces downtime. All operational activities should be logged for follow-up and auditing.
- Assign a winter safety officer per shift.
- Prepare a “storm kit” with heaters, de-icers, and dry towels.
- Communicate with local city services about snow removal timings.
- Train staff on how to assist elderly guests on icy surfaces.
Put it into practice
A 10-Point Winter Entrance Audit
Use this audit before the onset of severe cold and repeat every month to ensure entrances and drop-off areas are safe and energy-efficient.
- Check heating cables on ramps, stairs, and the entrance floor with a contactless thermometer.
- Verify that air curtain airflow matches the entrance width and has adequate speed.
- Inspect all door seals for weather damage and replace pieces that are cracked.
- Test the automatic door opening speed and closing delay.
- Look for signs of condensation on glazing that may indicate failing insulation.
- Confirm the de-icer storage is accessible and has the correct concentration for −30°C.
- Measure the surface temperature of the drop-off pavement; it should be above freezing.
- Ensure canopy gutters and downspouts are clear to prevent ice dam formation.
- Review security camera angles to monitor the entrance and identify blind spots.
- Schedule a thermal imaging scan of the façade near the entrance to detect heat loss.
Questions people ask
What is the minimum safe depth for a vestibule in severe cold?
A depth of 2.4 meters is the minimum to avoid two sets of doors opening together. For hotels with high guest traffic, 3.5 meters is better, especially when guests need to maneuver luggage or wheelchairs. This width also accommodates a seating area for waiting guests without causing congestion.
Are revolving doors better than sliding doors for Astana hotels?
Yes, revolving doors significantly reduce cold air ingress, especially during windy days. They automatically create an airlock without requiring a separate vestibule. However, they are not suitable for all guests; a conventional automatic door must be nearby for wheelchair users, large luggage, and emergency exits.
How often should the snow-melting system be activated?
Continuous activation is recommended whenever the temperature is below −5°C and snow is falling. For temperatures below −20°C, keep the system running even without precipitation to prevent freezing moisture. Use a weather station controller that starts the system when road sensors detect moisture and cold.
What emergency measures should be taken when a thermal curtain fails?
Immediately close half of the doorway to reduce airflow, and if possible, switch to a backup heater. Increase the temperature in the vestibule and ensure that the lobby heating is adjusted. If the problem cannot be fixed quickly, temporarily restrict entrance to one side and post staff to assist guests manually.
Sources and further reading
Sources were checked when this page was generated. Confirm changing dates, rules and prices with the original publisher.
- Официальный сайт города АстаныАкимат города Астаны
- Казгидромет — Климатические данные КазахстанаРГП «Казгидромет»