An essential role of a downspout boot is to successfully convey large quantities of roof runoff from the square or rectangular downspout into a round drainage pipe over the course of many years. Therefore, the superior flow characteristics required of a high quality downspout boot are crucial to its performance.

Using steel or sheet metal to fabricate a downspout transition piece is a poor option, as the assembly of pre-manufactured round and flat steel pieces creates sharp transitions and internal joints or weld seams. These internal flaws, when exposed to large volumes of flowing water over time, are prone to corrosion, clogging and leaking.

The iron casting process on the other hand provides the ability to engineer and produce a seamless and integral square-to-round transition piece using the most durable of building materials. The subtle contours and smooth lines required to facilitate high volumes of flowing water can be engineered into the downspout boot’s design, producing a seamless, flow-efficient interior suitable for long term performance.

In addition to the seamless and contoured interior, it is critical that a downspout boot offers consistent flow capacity from the top bell through the bottom outlet. Significant reductions in the open area of the downspout boot, seen in some conventional cast iron downspout boot designs, increases the risk of obstructed flow and clogging.

Of the many benefits J.R. Hoe cast iron downspout boots offer in a building design, perhaps the most important is their superior flow characteristics. J.R. Hoe downspout boots provide a smooth and contoured square-to-round transition with optimum flow capacity from the rectangular downspout down through the round bottom outlet and into the drainage pipe.

To learn more about downspout boots and hear about our product line, contact us at info@downspoutboots.com or 800-245-5521.