America Test Detail Reveal, Process of Hihaus products inspection So what is AAMA/WDMA/CSA 101/I.S.2/A440-11 NAFS 2011? It’s a test for North American Fenestration Standard / Specification for Windows, Doors, and Skylights In a word, it’s a very strict test, and here, let's check what test our products had experienced Step one: We prepare full products detail section drawing to Intertek for a general audit. Step two: Ship finish products to the lab, install on the test wall. The wall had 12 water guns and over 0.05pa pressure to our products for testing. The test had last for 30minutes!!! (Products holding on the test wall) (Water guns test—water is coming out to screen) After step 2, no leakage was found on the other side, the full products is remaining same. We are just half of the test, here comes to next step Step 3: Lab installed the wind gun for wind load resistance test, and same, each test will last for 30 minutes. (wind gun for wind load resistance) (wind speed control center) In final, our products pass all air tightness tests, water-resistance tests, and wind load resistance. And here also happy to share you our result, picture as below All test data is shown as above, passing the AAMA test once again proves our strong ability for quality products. If you are looking for quality windows and doors, curtain wall, glass railing, contact us or send us your requirement, we will offer you the professional advice.