# 7 Areas Most Flat Roofs Leak Last updated: 2023-02-21 Canonical URL: https://costeffectiveroofing.com/roofing/flat-roof-leaks/ Page (HTML): https://costeffectiveroofing.com/roofing/flat-roof-leaks/ [Open the HTML page](https://costeffectiveroofing.com/roofing/flat-roof-leaks/) ## Summary OUR SERVICES ##### Flat Roof Repair In The Phoenix Area Flat roof repair and maintenance can help avoid the need for replacement! --- title: 7 Areas Most Flat Roofs Leak url: https://costeffectiveroofing.com/roofing/flat-roof-leaks/ excerpt: Are you trying to be proactive? Here are the 7 most common places flat roofs leak. Find out where your flat roof is REALLY leaking before you replace it. --- # 7 Areas Most Flat Roofs Leak Are you trying to be proactive? Here are the 7 most common places flat roofs leak. Find out where your flat roof is REALLY leaking before you replace it. --- ## Flat Roof Repair In The Phoenix Area **Flat roof repair and maintenance can help avoid the need for replacement!** Find out where your flat roof is REALLY leaking before you replace it. Contact Nick for a HD digital roof report in REAL TIME! **For FAST service, call or email Nick:** ๐Ÿ“ž 602-829-9484 [EMAIL ME!](mailto:nick@costeffectiveroofing.com) [GET A QUOTE WITHIN 15 MINUTES!](#aerial) ## [Get a Free Roof Inspection](#inspection) Or just TEXT or CALL NICK: [480-629-5244](tel:480-629-5244) --- ## Flat Roof Repair Contractor Below are the 7 most common places flat roofs leak: ### 1. Plumbing Vent Flashings Over time, plumbing vent jacks begin to separate and lift. As the roofing membrane deteriorates in the desert sun, the metal flashing base may start to lift and allow moisture to enter. The actual plumbing pipe may start to gap or separate from the metal jack, creating an opening where moisture may enter the flat roofing structure, especially during monsoon rains. ### 2. Scuppers or Drains One of the most common areas of leaks on a Phoenix flat roof is the scuppers and drains. Scuppers are holes or openings in the walls with a manufactured metal โ€œskinโ€ that allows water to drain from the roof. As with in-roof drains, the roofing membrane begins to deteriorate and separate, allowing moisture penetration into the roofing assembly and eventually into the building. Clogged roof drains and scuppers cause a vast majority of roof leaks by allowing water to backtrack. ### 3. HVAC Units Leaks can penetrate at the metal flashings and where the air conditioning ductwork intersects the roof. Deteriorating roofing membranes may allow the flashing bases to lift and gap. On asphalt and gravel flat roofs, these leak issues may be difficult to see or diagnose. ### 4. Seams Most Phoenix flat roofs (other than monolithic systems like SPF-sprayed polyurethane foam roofs) have seams, and over time these seams can lift, creating opportunities for moisture to enter. In areas where a roof holds water, this can be especially dangerous, allowing water to seep into the roofing layers and eventually into the building. ### 5. Other Roof Penetrations Any other roof opening can, over time, also be the cause of a roof leak. Examples include satellite or cable, exhaust fans, and roof ventilators. All these items can crack, expand, and contract, thus allowing moisture to enter and cause damage. ### 6. Walls This type of leak issue can be from several sources. It could be from a poorly constructed wall where a moisture barrier was not installed below the stucco. It can be a wall counter flashing that is either installed wrong, missing, or damaged. Through-wall scuppers can also be a source of damaging leaks. ### 7. Skylights Skylights are usually mounted on curbs. Many times the curb flashings are deteriorated or may have been improperly constructed in the first place. It can also be as simple as a cracked skylight lens. --- ## Phoenix Area Flat Roof Leak Repairs Contact the flat roof experts at **603-829-9484** Call the **commercial roofing contractor** with dedication and experience at **602-829-9484** and set up a time for a complete roof inspection and written roof report. Have a flat roof that ponds water? Try roof ponding solutions using solar. ![TRM Badges](https://costeffectiveroofing.com/wp-content/uploads/2023/01/TRM-Badges-1.png)