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  Welcome to 
Volko Supply... Online

Servicing Home Owners & Contractors since 1948

205 Herricks Rd

Garden City Park, NY 11040

Directions @ Google Maps

A competitively priced full service building supply...Online!
Full service still exists, and here the premium is on service not on price.
  Wow!!!  I found it at Volko...... and they made it easy to order. 

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1 800 685 8263

Weathervanes | Copper Finials | Cupolas | Oak Grilles Vents & Registers | Copper Roof Vents & Flashings | Underground Garbage Cans | Fireplace & Chimney Dampers | Chimney Cap & Covers | Enervex Exhausto Chimney Fans

Volko Supply Custom Scuppers

Have a special application?  We can make whatever scupper you may need.

Custom scuppers available in copper, galvanized, and aluminum

Hand Made in USA! (Actually in New York)

100% Copper - 16 oz

copper through wall scupper flange copper roof drain

Volko Supply has been selling these hand made copper through wall scuppers from our Garden City Park location for over 60 years!  While we normally sell our stock scuppers, we can make whatever application you need. 

These products are made with pride in the United States....they are actually fabricated right here in New York!

We can make these scuppers as squares or rectangles.  The tube length can be made up to 10' long!!  This should allow you to use our scuppers through a mansard roof if need be.

These scupper boxes are designed to be installed from "inside" the parapet wall.  They are manufactured with a 4" flange, so the drain is easy to flash into the existing roof.  On asphalt or built up roofs this can be as simple as some tar and fabric, or using a self adhesive roofing or roofing tape along with some asphalt primer.

This is the easiest way to get the water off of your roof and through your parapet wall.  Water runs out of the tube, and you drop it into a standard commercial leaderhead or into a fancy leaderhead.

Sometimes these scuppers are used for overflow from the roof to supplement existing vertical roof drains.


Volko Supply stocks these flanged through wall scuppers in 4x4, 6x6, and 8x8

Any size box, flange, or length of tube can be made to order!  Feel free to ask questions.  We can also adjust the flanges for corners and right angles.


long custom copper scupper roof drain

custom copper roof scupper

A 5' long through the wall copper scupper.  This is being used to drain a flat roof through a mansard roof.  Note that the seam is fully soldered.  It is also double locked to ensure the drain lasts, and survives freeze thaw cycles common in the North East.

A comparison of our standard 4x4 copper scupper to one 5' long


custom rectangle copper scuppers

A hotel chain based in Miami, Florida gave us a call looking for some custom copper scuppers.  It wasn't a problem, and these were made to a sketch and shipped out in four business days.

Need to buy something right now?  Our scuppers, leaderboxes, fancy copper leaderheads, and commercial copper leaderheads are available for sale.  Please call us (1-800-685-8263) or email us (info@volko.com) for multiple item discounts and custom work.


flooded flat roof

Getting water off of a flat roof should be a priority for every building owner.  More problems come from standing water freezing and getting into seams, getting under flashings, and eating away at the material.  If you have any questions about flat roofing or roof drains feel free to call us at our New Hyde Park  or Port Jefferson location.

The problem here is the flat roof has sunk down below the level of the scupper drain.  Either the scupper has to be lowered, the roof needs to be re-pitched, or a vertical flat roof drain has to be installed.



The answer to this question really is: it depends. 

That being said there are charts to help you, as well as common sense.

How is your roof pitched?  If the water doesn't flow to a drain, it will never leave the roof.  Any direction water goes, it needs an exit.

The table below shows how many square foot of roof different size drains can handle at differing amounts of rainfall.  Remember to consult your local building code and inspectors.

Example: In New York the max rainfall per hour is 5".  At that rate, a 4" roof drain can handle 3,680 SF of roof.



roof drain sizing chart

Click here for full sizing guide

Weathervanes | Copper Finials | Cupolas | Oak Grilles Vents & Registers | Copper Roof Vents & Flashings | Gutter Accessories | Underground Garbage Cans
Fireplace & Chimney Dampers | Chimney Cap & Covers | Enervex Exhausto Chimney Fans 

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Volko Supply Co. Inc.

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205 Herricks Road


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Garden City Park, N.Y. 11040



Directions @ Google Maps

Tel 516-741-4466


Volko Supply Co. Inc

Fax 516-741-4470