DoublePro® FAQ: Your Top 8 Questions Answered

Got questions about Alu-Rex’s most advanced gutter guard? Here are 8 quick answers about the DoublePro® Microfiltration Continuous Hanger™.

1. What’s the purpose of the second layer?

The second layer blocks debris like pine needles that could clog your gutters, while letting through sticky micro-debris such as sap and pollen—substances that typically clog gutter guards themselves.

2. Are the perforations smaller than on the T-Rex® Continuous Hanger™?

No. The holes are the exact same size. It’s all about perception: darker surfaces—like the black aluminum used here—can make holes appear smaller, but they’re not.

3. Does this product have fewer perforations than the T-Rex® Continuous Hanger™?

Not at all. In fact, we’ve combined two perforation lines into one. That means more holes per line, but with wider spacing between lines. The result? High drainage capacity with smart debris control.

4. Does it drain enough water?

Absolutely. It drains just as much as the T-Rex® Continuous Hanger™—29.7"/hour, which is more than twice the heaviest rainfall ever recorded (12.3"/hour). The second layer’s large openings allow maximum water intake without slowing the flow.

5. Will debris get trapped between the two layers?

No. The second layer is designed to block direct debris access without creating buildup. The space between holes is small enough to prevent accumulation and is constantly rinsed by rain.

6. Will snow or ice get stuck between the layers?

A light ice film may form on the upper layer, but major buildup is prevented thanks to large perforations. This system was tested in freezers and endured two full Canadian winters—always maintaining its shape and performance.

7. Isn’t this product over-designed?

It may look complex, but it’s simple in function. After extensive testing, the Alu-Rex team found that a two-layer system dramatically reduces gutter and guard clogging. The result? Less maintenance and fewer headaches.

8. Is it better than micromesh gutter guards?

Short answer: Yes!

Micromesh systems often get clogged with sap, pollen, shingle granules, and pollution. Many even include a cleaning brush or recommend solvents in their warranty to help remove buildup. With DoublePro®, micro-debris flows through, not over, the guard—combining superior microfiltration with optimal drainage.