Marathon’s new “All” Aluminum Retrofit Drain constructed of Heavy Duty .081 gauge Spun Aluminum body, Heavy Duty Aluminum Ring with 12 scallops to maximize drainage, 10-inch Aluminum Strainer and ProSeal rubber seal that prevents water back-up issues.
With the introduction of CertainTeed’s new CertaForm™ Leave in Place Form, poured wall contractors can now reap the benefits of the company’s Form-A-Drain™ Foundation Drainage System in one-sided drainage applications.
Understanding the “Leak Triangle” and utilizing the 3-D approach—deflect, drain and dry—will enable the design/construction team to be more effective in analyzing problems and recommending solutions.
A drain shall be placed around the perimeter of a foundation that consists of gravel or crushed stone containing not more than 10-percent that passes through a No. 4 (4.75 mm) sieve.
1807.1.3 Ground-water control. Where the ground-water table is lowered and maintained at an elevation not less than 6 inches (152 mm) below the bottom of the lowest floor, the floor and walls shall be dampproofed in accordance with Section 1807.2.
Detail courtesy of the NRCA. Roof drains are provided throughout the roof to remove water from the roof surface. The National Roofing Contractors Association (NRCA) and most membrane manufacturers require
