Sump drain apparatus, system, and method of construction

1. A sump drain apparatus, comprising:

a drain bowl;

a ramp connected to the drain bowl comprising an incline plane configured to divert drainage water toward the drain bowl, wherein the drain bowl is connected to the ramp by an inlet conduit and a first land, wherein the first land comprises an upper surface and a lower surface, and wherein the lower surface is configured to rest on a roof deck; and

an attachment flange connected to the ramp and configured to couple the sump drain apparatus to the roof deck;

wherein the ramp is configured to be positioned on top of the roof deck and contain sump insulation beneath the ramp and above the roof deck.

2. The sump drain apparatus of claim 1 , wherein the drain bowl, the ramp, and the attachment flange comprise a single, continuous structure.

3. The sump drain apparatus of claim 1 , wherein the attachment flange is connected to the ramp by a second land and an insulation receiving surface, wherein ramp is connected between the first land and the second land, wherein the second land is connected between the ramp and the insulation receiving surface, and wherein the insulation receiving surface is connected to the attachment flange.

4. The sump drain apparatus of claim 3 , wherein the insulation receiving surface comprises an outer surface configured to couple to an insulation retention clip and abut roof insulation.

5. The sump drain apparatus of claim 1 , wherein the drain bowl is connected to and continuous with an outlet conduit.

6. The sump drain apparatus of claim 1 , wherein the inlet conduit comprises an annular shape and is configured to couple to a drain bowl strainer.

7. The sump drain apparatus of claim 3 , wherein the insulation receiving surface is perpendicular to the second land and the attachment flange and positioned between the second land and the attachment flange.

8. A sump drain apparatus, comprising:

a drain bowl;

a ramp connected to the drain bowl comprising an incline plane configured to divert drainage water toward the drain bowl; and

an attachment flange connected to the ramp and configured to couple the sump drain apparatus to a roof deck, wherein the attachment flange is connected to the ramp by a first land and an insulation receiving surface, wherein ramp is connected between the drain bowl and the first land, and wherein the insulation receiving surface is perpendicular to the first land and the attachment flange and positioned between the first land and the attachment flange;

wherein the ramp is configured to be positioned on top of the roof deck and contain sump insulation beneath the ramp and above the roof deck.

9. The sump drain apparatus of claim 8 , wherein the drain bowl, the ramp, the first land, the insulation receiving surface, and the attachment flange comprise a single, continuous structure.

10. The sump drain apparatus of claim 8 , wherein the insulation receiving surface comprises an outer surface configured to couple to an insulation retention clip.

11. The sump drain apparatus of claim 8 , further comprising a drain bowl strainer coupled to an inlet conduit of the sump drain apparatus.

12. The sump drain apparatus of claim 8 , further comprising an outlet conduit connected to and continuous with the drain bowl.

13. The sump drain apparatus of claim 12 , wherein the outlet conduit is configured to couple to a drain pipe.

14. The sump drain apparatus of claim 8 , further comprising a second land connected between the drain bowl and the ramp, wherein the second land and the first land are connected to and continuous with the ramp.

15. The sump drain apparatus of claim 14 , wherein the first land is configured to be coupled to a roof membrane.