INSTALLATION RECOMMENDATIONS
The method installation for ThermaDrain® is similar to the installation of standing rigid insulation board us in cavity wall construction. However the following precautionary measures must be carefully followed during construction to achieve the desired results and successful performance of the ThermaDrain® wall system
1. Install ThermaDrain® in 16 X 96 board size to accommodate for joint reinforcement requirements of masonry wall.
2. The board must be butted tightly against the concrete masonry back-up with the top of the board sloped towards then outer wythe of masonry. The drainage mat must face the wall exterior. All mortar droppings must be removed from the face of the concrete masonry to ensure direct and ush contact between ThermaDrain® and the backup wythe. Provide a 0 to 5/8 space between the outerface of ThermaDrain® and the inner face of the exterior wythe of masonry.
3. Install adjacent sections of ThermaDrain® board by tightly butting both vertical and horizontal ends together. At vertical joint locations the board must be positioned properly (as previously indicated) with the top of the board sloped down toward the exterior wythe of masonry.
4. For exterior corner conditions, provide 45º miter on horizontal ends of ThermaDrain® board. Miter must be produced with eld saw, or tape the end joint continuously.
5. Use ThermaDrain® only in the walls that contain properly specied and correctly installed ashing. The interior end of the ashing must always be properly terminated behind the ThermaDrain® board.
6. All field adjustments required for the alteration of size or shape the board must be performed with a power table. (Do not remove the top slope of the board.)
For insulation recommendation in brick veneer construction contact ThermaDrain® for technical assistance.