Comparison of energy-efficient Aluprof windows
Aluprof windows offer excellent thermal performance and are ideal for installation in passive houses and high-end buildings.
More than 80% of our U.S. customers choose European aluminum windows. This material is durable, resilient, and allows for large glazing. Let’s dive into debesto’s expert analysis to find the perfect windows for your project.
In this article, we compared profiles:
- Aluprof MB-104 SI
– the most energy-efficient window, choose it when very low U-Factor (rather than price) is most important in the project - Aluprof MB-86N ST
– choose this profile when you need a good U-Factor at a moderate price - Aluprof MB-86N SI
– minimally worse U-Factor than MB-104 SI at a much lower price; choose it when the project requires a low Uw, but MB-104 SI is not in the budget - Aluprof MB-79N ST
– the most affordable profile, still providing good thermal performance, but not to the passive standard - Aluprof MB-79N SI
– the best thermal parameter/price ratio, best for projects involving economic solutions
Comparison of 5 Aluprof windows – table with specifications
To make it easier for you to check Aluprof warm aluminum profile differences, we have prepared for you a comparison of thermal parameters and prices of 5 window systems. We made the calculations based on a reference window 4 ft 0.43 in x 4 ft 10.27 in, 3 panes, Ug 0.09 with a warm spacer.
| Name | Profile drawing | U-Factor (Btu/h·ft2·F) | Uw (W/m2·K) | Frame+sash height | Price (USD) |
| Aluprof MB-104 SI |  | 0.73 | 0.13 | 4.06 in | 835 |
| Aluprof MB-86N ST |  | 0.85 | 0.15 | 3.5 in (extra paid) 3.82 in | 619 |
| Aluprof MB-86N SI |  | 0.8 | 0.14 | 3.5 in (extra paid) 3.82 in | 640 |
| Aluprof MB-79N ST |  | 0.94 | 0.16 | 3.5 in (extra paid) 3.82 in | 579 |
| Aluprof MB-79N SI |  | 0.83 | 0.15 | 3.5 in (extra paid) 3.82 in | 590 |
Detailed information about the compared Aluprof windows:
Aluprof MB-104 SI
- if your investor requires warm passive windows, this is a good choice
- this profile allows you to obtain the best thermal parameters of all the Aluprof profiles we compared – U Factor 0.13
- however, the price of this profile is the highest in our comparison
- the window also has the highest frame + sash height
Aluprof MB-86N ST, SI
- MB-86N SI profile is only 0.01 colder than MB-104
- SI version is more than 25% cheaper than MB-104, but more expensive than MB-79N
- is a good choice if your builder expects very warm windows, but is not within the budget for MB-104 windows
Aluprof MB-79N ST, SI
- it is a solution from the category of more economical profiles with a depth of 2.76 in, but has better thermal parameters than many other solutions from the same class
- the standard version is the cheapest in our comparison, at the same time it has the worst thermal performance
- model 79N ST among the compared profiles allows you to achieve the lowest frame and sash height, which is 3.5 in
- SI version with additional thermal break is a very good, cheaper alternative to the standard version MB-86N
- SI version of this profile is the most profitable ratio of the thermal parameter to price
As you can see from the example of just a few Aluprof windows, aluminum profiles allow you to achieve very good thermal parameters. However, there are other choices.
If you want to explore more about this brand products, see the full list of Aluprof windows.
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