Storm Windows
It is important to check the quality of our storm windows and before buying new ones, it is necessary to consider the performances which condition the resistance of the joinery to the force of the wind and those which must prevent the infiltration of the wind.
Climate change in the world is characterized by variations in the weather. As a result, we are exposed to sudden changes in the weather, we are subject to large variations in temperature and strong winds and even storms that cross the country. Climate change leads to increasingly severe weather phenomena such as tornadoes. This is why it is important to buy the best Storm Windows you can find.
The most dramatic climatic changes take place during the transition from winter to spring. The most severe and unpredictable weather phenomena occur at this time, conditioned by the reshaping of the access of solar rays, which means that the Earth begins to warm up while the Atlantic is still warm. Weather phenomena that are difficult to predict therefore occur before the equilibrium between the continent and the ocean is established.
Wind resistance and water tightness are extremely important criteria determining the quality of windows. They are especially important for residents of apartments on high floors and for owners of isolated houses or houses by the sea.
Wind resistance
Strong wind can cause irreversible deformation of the window by bending the window frame by several millimeters. This kind of action can cause permanent loss of seal. In order to provide comfort and protect against the harmful action of weather factors, we should first of all invest in good quality windows that are distinguished by high rigidity.
The resistance to wind pressure or the stiffness of the Storm Windows is determined by its class. The coefficient determining the resistance to wind pressure indicates the wind speed that will cause the maximum allowable deflection of the most stressed element of the window. It should not exceed 1/300 of the length of the element in question. It is important to choose this parameter according to the force of the winds exerted at the site of installation because the resistance to the pressure of the wind of a window in a building of several floors should not be the same as that of a window in a detached house, which results from the physical structure of the building.
The wind resistance class of the Storm Windows is evaluated during laboratory tests. The test consists in applying a series of positive and negative reference pressures in order to determine, through measurements and checks, the frontal deflection and the resistance to damage caused by the wind load.
The frontal deflection being a maximum displacement of an element of the leaf or fixed frame frame reduced by half of the sum of the displacements in each end of the element.
The frontal displacement being the displacement of a point of the element of the frame of the leaf or the fixed element measured perpendicular to the element.
Following these Storm Windows tests, the wind resistance is determined by the symbols ranging from A-1 (the least stiff) to C-5 (the most rigid). In our climatic conditions, for a standard residential building the window of wind resistance class B-3 / B-4 is sufficient. In extreme cases, in case of exposure to strong winds, either at high altitude or in the case of an isolated house located in the open field, it is advisable to choose class C-3 / C-4. This means that the wind of force 1200/1600 Pa (i.e. 158-184 km / h) will cause the bending of the frame, not exceeding 1/300 of its length.
The maximum wind resistance of the C-6 class Storm Windows means that the wind blowing at the speed exceeding 205 km / h will deform its frame by 1/300 of its length. The minimum resistance of the class A-1 window means that the wind blowing at a speed of 90 km / h will deform its frame to the maximum, ie 1/150 of its length.
Once the desired class has been reached, it should be checked whether the window will withstand the repetitive conditions. Therefore, 50 cycles of pressure and depression are repeated (positive and negative pressures, the value of the pressure being half the value of the class reached).
Another important strength test for the tested window and in particular for the fittings is the safety test. The sample is subjected to a single cycle of positive and negative pressure. The value of this pressure depends on the class reached during the test. It is multiplied by 1.5. The test makes it possible to determine the quality and rigidity of the fittings and at the same time the resistance of our window to the wind load.
Testing the resistance of Storm Windows is a legal obligation; the manufacturer is required to attach to each window a sheet listing its performances and its classes. Therefore, before purchasing a window, it is advisable to carefully check what performance the product guarantees and what level of security it guarantees us. Three parameters are particularly important: wind resistance as well as water tightness and air permeability which are linked to the first parameter. Faced with increasingly frequent climatic changes, it is important to know that the performance of the Storm Windows determines the comfort of its use and the level of our satisfaction.
Modern Storm Windows are distinguished by technological advancement. Innovative solutions decide their quality. It is possible to find the joinery perfectly suited to our needs and preferences in terms of colors or sizes of windows. However, it should not be forgotten that the essential parameters remain resistant to wind load and waterproofing. So, you have to check and ask questions because this information guarantees the right choice of windows. The certifications, certificates, and technical approvals obtained by the manufacturer must be required. It is also important to give confidence to strong partners, to companies with traditions whose reliability is confirmed by years of experience in the professional market.
Custom Storm Windows
No matter what design, color or size Millennium Windows and Doors can provide for your specifications with the highest of quality.
Our MILLENNIUM PREMIUM® Window line is the best. The coatings on our glass products are almost undetectable to the eye just like looking through perfectly clear glass.
Breakthrough Design
- High Energy Efficiency
- Double Pane Low-E Glass
- Triple Strength Tempered
- Non-Glare
- Ballistic-Resistant (Available)
- Butyl Rubber Seal
- Water Proof & UV Protection
- Wear-Resistant Hardware
- Standard Multi-Point Locking System
We’d love to further show you that our MILLENNIUM PREMIUM® Windows let only about 3 percent of the sun’s UV rays into your home. That means that 97% of the energy-robbing and fading rays of the sun are kept out of your home. This result will vastly improve your energy savings. With this huge energy savings, you can pay to replace your old windows with new MILLENNIUM PREMIUM® Windows. WE GUARANTEE IT!
