What is the U-Value of a rated windows?

Glass u-coefficient

You probably already know that installing energy-efficient windows will help you reduce the cost of your monthly energy bill. These windows allow you to keep the heat in when it’s cold and seal out the cold when it’s hot outside.

Common glazing options for energy-efficient windows include double-clear, double-tinted and low-e coatings. Some manufacturers also employ different types of sun-resistant film inside the casing to reduce heat transfer.

At Sevillana de PVC we offer you some of the most energy efficient windows on the market, helping you to better conserve heat and cold in your home. With this you will not only save money on your electric bill, but you will be helping to save the planet where we live.

We all want the most efficient windows. Of course, there are many factors to consider when we go to replace old windows to update our home. Finding a trusted and experienced installer is a good start. At Sevillana de PVC you won’t have to look far to discover the best professionals.

What are the most efficient windows?

The most efficient are U1.

But focusing on energy efficiency, the most efficient is double glazing. The air chamber prevents temperature exchange with the outside and is a system that can be combined with reinforced thermal glass.

How to choose the type of window?

First of all, we must consider the type of profile that best suits our needs: PVC, aluminum or wood. Secondly, the glazing is a fundamental element in determining the performance of a window and its greater orientation to solve certain problems or challenges.

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What are insulated windows?

Insulating windows are windows that work like a thermos. It insulates the outside from the inside of a house so that the cold or heat is not lost depending on the season we are in.

Energy efficiency windows

The UNE-EN 12608-1:2016 standard divides PVC profiles into three categories: A, B and C. The division is made on the basis of the thickness of the outer walls of the profiles, without establishing clear requirements regarding the thickness of the inner walls of the profiles. Here are the three classes of PVC profiles and the allowable tolerances for the thickness of their walls:

Unlike the thickness of the walls the chambers, i.e. the hollow spaces of PVC profiles, are directly related to the thermal penetrability coefficient U, the unit that speaks of the energy efficiency of the window. Generally speaking, the lower the U value, the more efficient the window is (the better thermal insulation it offers).

How thick are PVC windows?

Currently, the optimal solution is profiles with a minimum thickness of 70 mm and at least five air chambers, in which case the thermal penetration coefficient reaches 1.5 W/m2k and less, as in the case of the profiles that make up the PVC windows distributed by Veneo.

What does it mean for a window to be energy certified a *?

This is a marking system for the classification of products according to their energy consumption compared to those of the same category and, in the case of windows, informs the consumer of their degree of efficiency and performance.

What is the price per square meter of aluminum?

Costs in Mexico for modern aluminum windows

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The cost per square meter of modern windows with aluminum frame and glass inside are being quoted in Mexico City at $1750.00 per square meter approximately.

Window Certification

PVC windows and doors are known for their robustness and excellent performance. However, aluminum stands out more in terms of aesthetics. This changes with the launch of the Elegant series. Never before have PVC profiles had such a modern and minimalist look.

It can be summed up in the Dutch expression “stilstaan es achteruitgaan”, i.e. to stand still is to go backwards. It’s a saying that perfectly defines the entrepreneurial spirit of Dimitri and David Hemelings. Together, these two cousins run the Hemmar (PVC) and Aluneo (aluminum) window factories. Automation, digitalization and specially developed software have always featured prominently in their business strategy.

Some of the stories that caught our attention this month are the problems experienced by the supply chain of the Belgian carpentry sector, a new virtual reality helmet for on-site safety checks, Volvo’s testing of electric conveyors in a Swiss limestone mine, and the world’s first vertical forest, which is growing in the heart of Milan.

What should the windows of a house look like?

North and south facing windows should be glazed with a high solar factor (>50%). However, east and west facing windows should be equipped with solar control glazing. In general, it is recommended that all glazing should also be low emissivity.

What is better an aluminum window or a PVC or wood window?

Fire resistance

Aluminum is a non-combustible material, but it has a high thermal conductivity, so it can reach very high temperatures. It is also important to mention that it does not give off noxious gases or smoke. Wood has good fire behavior; it burns, but is not flammable.

What are the best windows to insulate against cold and noise?

It has been proven that aluminum, wood or PVC windows, besides being the most common, are the best types of windows to insulate from the cold that exist today, because with one of them and a suitable insulating glass, it is possible to reduce your electricity bill by up to 70%, …

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Types of windows

The UNE-EN 12608-1:2016 standard divides PVC profiles into three categories: A, B and C. The division is made on the basis of the thickness of the outer walls of the profiles, without establishing clear requirements regarding the thickness of the inner walls of the profiles. Here are the three classes of PVC profiles and the allowable tolerances for the thickness of their walls:

Unlike the thickness of the walls the chambers, i.e. the hollow spaces of PVC profiles, are directly related to the thermal penetrability coefficient U, the unit that speaks of the energy efficiency of the window. Generally speaking, the lower the U value, the more efficient the window is (the better thermal insulation it offers).