4 Tips for Maintaining a Working Roof Drainage System
It’s critical that water drain off of low-slope roofs. When it doesn’t, the presence of water causes deterioration and premature aging of the membrane, as well as possible microbial growth. Manufacturers advise that water should not remain on the roof for more than 48-72 hours. Ponding water also creates a slip-and-fall hazard, causes environmental debris to collect, and adds weight to the roof that structural members and the roof deck may not have been designed to accommodate.
The more water you have on the roof and the longer it’s there, the greater the risk for roof leaks too. Ensuring roof drainage is effective can help you avoid these and many other problems. We’ve got four easy tips to help.
1. Check Drains After Storms and High Wind
Windborne environmental debris can block drains. If you can be on the roof safely, perform visual inspections after a storm to make sure drains aren’t clogged. If possible, clear the drain or alert your roofing contractor. For especially difficult obstructions, call a plumber to snake the drain.
2. If Drain Baskets Are Missing, Replace Them
Drain baskets (also called drain guards, domes, covers, or strainers) act like a sieve to prevent large vegetation and debris from entering the drain pipe. The least expensive baskets are made from high-impact plastic such as PVC or polypropylene and can often be purchased for less than $100 each. Metal (aluminum or cast iron) drain baskets are another option.
3. To Keep Drainage Paths Open, Be Proactive
Create a schedule of routine roof inspections and general preventive maintenance. Proactive evaluation of roof drainage and regular cleaning of drains and waterways will keep water flowing off the roof. Carelessness and lack of maintenance are usually to blame for obstructed scuppers, gutters, downspouts, and drains. Maintenance of the grounds can also help keep drainage flowing; trimming nearby trees will reduce the number of leaves and pine needles that end up on the roof.
4. Take Rooftop Workers to Task for Leaving a Mess
When individuals are working on the roof, they often leave behind spare parts, rags, food and beverage packaging, etc. This trash often ends up in a roof drain. Remind workers before they get on the roof to clear and clean the area when they’re done, or if you can be on the roof safely, walk the area to make sure nothing has been left behind that could jeopardize drainage.
Contact D. C. Taylor Co. today at 319.731.4118 or [email protected] to schedule general preventive maintenance.
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