When constructing a house along with your contractor, you would also consider the temperature regulation and ventilation. This is a special case in summer or during any other harsh weather for that matter. Contractors may offer options but it is best practice to know what are these options.
A lot of materials would be available, and some contractors would sneakily offer new products that are not even quite fully tested yet. You might hear of something like a radiant barrier paint. It is basically a radiant barrier that you spray on to the ceiling which might sound a bit convenient. But here is the catch, the known effectiveness of it compared to others is just around five to seventy five percent.
Reflective Insulation is the correct name for it used during space exploration. The actual tested percentage for it to reflect heat is up to ninety five percent. So what we got from the spray on is that it can only go up to seventy percent, which does not fit the qualifications.
The heat transfer here on earth through convection and conduction is about five to forty percent. With this in mind, how effective the material would depend on radiative heat, meaning it is more effective in outer space. This has a low emittance surface surrounded by air surface, which is the known factor.
The American Society of Testing and Materials International has given a definition of what Radiant Barrier means and its qualifications for a certain material. The said materials should at least have a value for low emittance from 0.10 or lower. With this, the paint which was only seventy five percent would not exactly meet the standards.
The usual materials which are wood, fiberglass, and masonry have about 0.8 or more. This means that they have higher rates for transferring radiative heat. Basically, 0 level is the lowest emittance with 1 being the highest. So each material can and may be tested accordingly if they have these levels.
Here is the thing with regards to Quality Control and Quality Assurance. The latter provides that you place the material and hope it works, while the other assumes that it is already effective but all you need to make sure if it is installed correctly. Such can be compared between the spray on and the foil.
Some contractors would provide you with materials you have not heard of or they might make it sound very pleasing to you. One of these might be the spray on, which is aluminum being finely granulated and mixed in with clear paint. And when the it dries up it leaves the aluminum on the surface. Be wary of cutting the paint, for this would dilute the mixture and could even more make it non effective.
In other words, you might need to check if the paint you are using has gone under tests from the American Society of Testing and Materials. Also, asking for further details like level of the emittance and more testing data. This is only when you prefer using it, and you need to have this applied by professionals since the airborne chemicals are really hazardous.
A lot of materials would be available, and some contractors would sneakily offer new products that are not even quite fully tested yet. You might hear of something like a radiant barrier paint. It is basically a radiant barrier that you spray on to the ceiling which might sound a bit convenient. But here is the catch, the known effectiveness of it compared to others is just around five to seventy five percent.
Reflective Insulation is the correct name for it used during space exploration. The actual tested percentage for it to reflect heat is up to ninety five percent. So what we got from the spray on is that it can only go up to seventy percent, which does not fit the qualifications.
The heat transfer here on earth through convection and conduction is about five to forty percent. With this in mind, how effective the material would depend on radiative heat, meaning it is more effective in outer space. This has a low emittance surface surrounded by air surface, which is the known factor.
The American Society of Testing and Materials International has given a definition of what Radiant Barrier means and its qualifications for a certain material. The said materials should at least have a value for low emittance from 0.10 or lower. With this, the paint which was only seventy five percent would not exactly meet the standards.
The usual materials which are wood, fiberglass, and masonry have about 0.8 or more. This means that they have higher rates for transferring radiative heat. Basically, 0 level is the lowest emittance with 1 being the highest. So each material can and may be tested accordingly if they have these levels.
Here is the thing with regards to Quality Control and Quality Assurance. The latter provides that you place the material and hope it works, while the other assumes that it is already effective but all you need to make sure if it is installed correctly. Such can be compared between the spray on and the foil.
Some contractors would provide you with materials you have not heard of or they might make it sound very pleasing to you. One of these might be the spray on, which is aluminum being finely granulated and mixed in with clear paint. And when the it dries up it leaves the aluminum on the surface. Be wary of cutting the paint, for this would dilute the mixture and could even more make it non effective.
In other words, you might need to check if the paint you are using has gone under tests from the American Society of Testing and Materials. Also, asking for further details like level of the emittance and more testing data. This is only when you prefer using it, and you need to have this applied by professionals since the airborne chemicals are really hazardous.
0 comments:
Post a Comment