Built Storefront, Curtain Wall and Sloped Glazing Systems (Quality Assurance and Evaluation of the Leakage of water fields) AAMA 501
is developed to help permanently closing inspection for large glass areas such as storefronts, curtain walls and sloped glazing systems.
Referral to the AAMA 502, AAMA 503, or the ASTM E 1105, for a test that checks water resistance in severe weather conditions.
Test Overview: The area to be tested will be chosen by a project architect or other representative (specifier). This area should be a typical project building.
A minimum area of 100 ft is usually tested. t is better to conduct this test when the interior walls are incomplete so that any moisture is visible during the test and adjustments can be made before completion of the building. If the test area is covered by interior finishes, the contractor may assume additional costs of revealing and finishing the wall(s) after completion of the testing. Test guide is very specific. From a 3⁄4 "(19 mm) diameter hose fitted with a nozzle, a constant pressure of about 30-35 psi (210 kPa) is placed. To standardise test results, this 1⁄2 "diameter brass nozzle is to be part B-25 # 6.030, derived only from Monarch Manufacturing. To measure the distance from the test surface it is recommended to fit the nozzle with a gauge.
A 5-foot section which bears both the frame and a joint in the glass is chosen for the actual test. The nozzle is placed 1-foot from the window and rotated back and forth slowly for the 5-minute test period. The area chosen is soaked from the lowest horizontal brace to any vertical framing adjacent to it. A member of the test team will be inside during the test to track the walls and check for any leakage. Any volume of water over the course of 5 minutes greater than 1⁄2 ounce would be considered a loss. Water leakage 'Water leakage is characterised as any uncontrolled water that occurs on any normally exposed interior surface that is not contained or drained back to the exterior, or that may cause damage to adjacent materials or finishes.' (From AAMA 501) If a leak is detected, the wall must first be fully cleaned, sealed and retested. To detect the weak points in the building, the waterproof tape can be used to fully seal the area. Both joints, gaskets and frame components are sealed from the outside and removed in 5-foot sections to be retested for the exact spot of leakage. If no leaks occur, the area will remain uncovered and the test will proceed. Every area affected by leaks would have to be inspected, restored on the basis of the architect's advice, and retested.
Rommel uses specialised analytical equipment that is calibrated to of particular performance standard for consistent results. Our field experts are well trained and knowledgeable on all evaluation criteria. Rommel has comprehensive knowledge of most building structures and specialises in structural intrusion investigations. This helps us not only to better assess fenestrations for new building sites but also to determine the cause of any assess failures and to offer reliable feedback for good test results. Failures during quality assurance (new construction) testing may result in undue delays that can have an effect on your bottom line. If you are searching for a reliable second or third-party testing company to conduct thorough professional testing, produce detailed documentation, and guide you navigate the whole process, please contact Rommel today.