Low Slope Roofing Applications Using the 238T Symmetrical Panel System
Many low slope metal roof systems fail to reach their 40 year potential life expectancy due to four typical problem areas:
- End Laps
- Exposed Fasteners
- Curbs and Penetrations
- Repairability/ Replaceability
1. End Laps
ABC eliminates leaky end laps by running panels directly onto the roof. With the introduction of Archzilla®, Architectural Building Components eliminated the delivery and handling issues that prevented continuous length panels from being used. By roll forming directly onto the roof, the cost, risk, and time of loading long panels onto the roof has been eliminated. An end-lap free roof results in a longer expected life span for the metal roof system on any slope, but especially a low slope roof.
2. Exposed fasteners
Exposed fasteners damage the integrity of the roof system. Making a hole in the roof panel creates an irreversible problem that will generally get worse as the roof ages. Significantly reducing the number of exposed fasteners in a roof system will also enhance the roof’s life expectancy. Areas where fasteners are particularly vulnerable are at end-laps, curbs, eaves and valleys.
3. Curbs
Large penetration curb flashings are nemesis for low slope metal roofing. The average detail will have panels lapping over the curb flashing, the curb flashing lapped over the panels and be composed of many exposed fasteners and tubes of sealant. Architectural Building Components has re-engineered the curb detail to eliminate all end laps the reliance on these exposed fasteners and sealant. Panels are utilized in a manner that prevents enormous amounts of water from ever reaching the back of the curb. The end result is improved weather tightness and, again, lengthened life expectancy for your roof system.
4. Repairability (Individual Panel Replacement)
Lastly, low slope metal roofing has struggled with addressing the evolution of the building and its occupants. Structural metal panels, historically, have not been able to be modified due to the permanent, 180 degree mechanically seaming that occurs to make the roof watertight. However, Architectural Building Components 238T has changed all of that. The 238T satisfies the structural and weather-tightness while providing the ability to be removed, modified or re-installed. A new mechanical unit or new vent hood is no big deal for the 238T. The roof is easily returned to a weathertight state with the help of properly trained and experienced sheet metal roof installers.
Contact us today for a free consultation on your low slope new construction, re-roof, or retrofit project.
