Insist on Test Results!
Testing: A testing program was developed to determine the eectiveness of ThermaDrain® wall system in comparison to standard cavity wall system. Walls for this study were tested in accordance to ASTM E514, “Test method for water Permeance of Masonry.” Walls were constructed unsupervised to simulate eld conditions and to allow normal amount of mortar droppings and extrusions to accumulate in the wall. The ashings were properly installed at the base of each wall to facilitate the collection of water.
| Water Drainage Test – ASTM E514 | ||
| Drainage System | ThermaDrain | 3” Cavity with Pea Gravel |
| First visible water on cavity side of brick | 6 minutes | 7 minutes |
| Appearance of flowing water on cavity side of brick | 14 minutes | 16 minutes |
| Water passing through weep hole at the brick wythe face | ||
| 3 hours | 3.4 gal/hr. | .51 gal/hr. |
| 72 hours | 4.1 gal/hr. | 1.06 gal/hr. |
Conclusions – Results of the study indicated that the ThermaDrain assembly substantially outperformed the standard cavity wall system and exhibited nearly 400% more drainage capability. For a copy of the test results contact ThermaDrain.