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.
This is also called Reflective Insulation which was, as mentioned, first used by space exploration. Basically, it should reflect about ninety five percent of the heat. So in the paint being as low as five percent, it would not be considered as radiant barrier at all.
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.
Also, in regards to the definition from the American Society of Testing and Materials International, currently there is no such product that is available. So do not get fooled. The standards for a material to be considered radiant barrier is when it has low emittance surface level of 0.10 or lesser.
Materials have emittance levels for radiative heat. The levels are from 0 to 1, which 0 having the lowest emittance. For construction, like masonry, wood, and also fiberglass, the have levels around 0.8 or maybe higher than that.
Knowing that something works after installing is better than wondering if it even works after being installed properly. That is with Quality Assurance and Quality Control. QA is basically hoping it works, which relates to the paint job you would be doing, while QC is as much as making sure that the stuff are placed in correctly. The risks for the spray on is higher compared to other options like foil.
There are instances when the contractor you hired would offer the paint to be mixed in with water, which is called cutting. This is by no means a good practice. The composition of this are bits and pieces of aluminum grounded and fined then mixed with clear paint, so when it dries it only leaves the aluminum. Adding water to it would end up diluting and making it even way less effective.
A lot of products are being sent out in the market that are not properly tested. It only takes further steps in making sure that you are getting the right ones, or rather, choosing the right material that would deliver results. Although if you insist on using sprays, make sure it is installed professionally due to its hazardous airborne chemicals, and also checking the testing data, level of emittance, and if they were monitored in the American Society of Testing and Materials International.
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.
This is also called Reflective Insulation which was, as mentioned, first used by space exploration. Basically, it should reflect about ninety five percent of the heat. So in the paint being as low as five percent, it would not be considered as radiant barrier at all.
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.
Also, in regards to the definition from the American Society of Testing and Materials International, currently there is no such product that is available. So do not get fooled. The standards for a material to be considered radiant barrier is when it has low emittance surface level of 0.10 or lesser.
Materials have emittance levels for radiative heat. The levels are from 0 to 1, which 0 having the lowest emittance. For construction, like masonry, wood, and also fiberglass, the have levels around 0.8 or maybe higher than that.
Knowing that something works after installing is better than wondering if it even works after being installed properly. That is with Quality Assurance and Quality Control. QA is basically hoping it works, which relates to the paint job you would be doing, while QC is as much as making sure that the stuff are placed in correctly. The risks for the spray on is higher compared to other options like foil.
There are instances when the contractor you hired would offer the paint to be mixed in with water, which is called cutting. This is by no means a good practice. The composition of this are bits and pieces of aluminum grounded and fined then mixed with clear paint, so when it dries it only leaves the aluminum. Adding water to it would end up diluting and making it even way less effective.
A lot of products are being sent out in the market that are not properly tested. It only takes further steps in making sure that you are getting the right ones, or rather, choosing the right material that would deliver results. Although if you insist on using sprays, make sure it is installed professionally due to its hazardous airborne chemicals, and also checking the testing data, level of emittance, and if they were monitored in the American Society of Testing and Materials International.
0 comments:
Post a Comment