BALLAST GUARD

Designed for use in protected membrane (inverted) roof assemblies, where it effectively prevents loose ballast from accumulating against the strainer. It also safeguards against any ballast falling through the strainer, ensuring proper drainage and maintaining the integrity of the roofing system. By facilitating a balanced distribution of ballast, this solution contributes to the overall stability and longevity of the roof assembly.

Retro Drain Sizing Chart

I.D. of the Existing Drain Leader Platinum Drain Size (O.D.) Fits Into Pipe (I.D.) Large End of Seal (Max. Expansion) Note
2″
1 ¾”
2″
NA
Coupler Required
3″
2 ¾”
2.87″ – 3.25″
3.34″
3″ Drain Seal Required
4″
3 ¾”
3.87″ – 4.12″
4.13″
4″ Drain Seal Required
5″
4 ¾”
4.87″ – 5.25″
5.39″
5″ Drain Seal Required
6″
5 ¾”
5.87″ – 6.12″
6.22″
6″ Drain Seal Required

Balast Guard


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