ᐅ Front Door Purchase: uPVC Door, Aluminum Door, or a Thermo Carbon Door?
Created on: 1 Feb 2017 20:30
E
EOS444Hello,
for a new build (KfW75 energy efficiency standard), we need an entrance door with a U-value less than or equal to 1. Dimensions are 1750 x 2135 mm (69 x 84 inches), door 1100 x 2135 mm (43 x 84 inches), sidelight 650 x 2135 mm (26 x 84 inches), clear passage dimension 959 x 2045 mm (38 x 80 inches).
Should we choose a uPVC door or an aluminum door? Or does it have to be a Thermo Carbon door?
Also, how should we interpret the manufacturers’ U-value specifications? These always refer to the door itself, while the sidelight (with glazing) usually has a higher U-value, which is even overlooked in the offers we have received.
What should we decide?
for a new build (KfW75 energy efficiency standard), we need an entrance door with a U-value less than or equal to 1. Dimensions are 1750 x 2135 mm (69 x 84 inches), door 1100 x 2135 mm (43 x 84 inches), sidelight 650 x 2135 mm (26 x 84 inches), clear passage dimension 959 x 2045 mm (38 x 80 inches).
Should we choose a uPVC door or an aluminum door? Or does it have to be a Thermo Carbon door?
Also, how should we interpret the manufacturers’ U-value specifications? These always refer to the door itself, while the sidelight (with glazing) usually has a higher U-value, which is even overlooked in the offers we have received.
What should we decide?
I find wooden doors quite nice as a contrast; it’s not just plastic and aluminum. I don’t know what Thermo Carbon is.
The side panel shouldn’t actually have a higher U-value if it has triple glazing with 0.6mm (0.02 inch) glass. The door should be overlapping on both sides, otherwise the overall heat transfer coefficient (U-value) probably won’t meet the target. The door glazing should also be triple glazed.
The side panel shouldn’t actually have a higher U-value if it has triple glazing with 0.6mm (0.02 inch) glass. The door should be overlapping on both sides, otherwise the overall heat transfer coefficient (U-value) probably won’t meet the target. The door glazing should also be triple glazed.
Thermo Carbon: never heard of it. Entrance doors are subjected to more stress and rougher treatment than windows. Even in a single-family home without children, I would choose aluminum.
The U-value (formerly known as the k-value) indicates the heat transfer in watts per square meter per kelvin in one hour. One kelvin corresponds to a temperature difference of one degree Celsius, and if a 2°C (3.6°F) temperature difference passes through one square meter of surface in one hour, the U-value is 2.0. Naturally, the door leaf with insulated foam core has less heat transfer than the transparent side panel.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
The U-value (formerly known as the k-value) indicates the heat transfer in watts per square meter per kelvin in one hour. One kelvin corresponds to a temperature difference of one degree Celsius, and if a 2°C (3.6°F) temperature difference passes through one square meter of surface in one hour, the U-value is 2.0. Naturally, the door leaf with insulated foam core has less heat transfer than the transparent side panel.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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