Inspecting low-slope roofs involves a comprehensive assessment to ensure their structural integrity, functionality, and longevity. Due to their unique characteristics and vulnerability to certain issues, low-slope roofs require specific inspection methods. Here's what an inspection for a low-slope roof typically includes:
Surface Condition: Examining the roof surface for signs of wear, such as blistering, cracking, splitting, or erosion of the roofing material.
Debris and Dirt Accumulation: Checking for any accumulation of debris, leaves, or dirt that could obstruct water flow and lead to pooling or water ingress.
Uniformity and Flatness: Assessing the roof for uneven areas or sagging which could indicate underlying structural issues or water retention.
Inspecting Drains and Gutters: Ensuring that drains, scuppers, and gutters are clear of obstructions and functioning properly to facilitate proper water runoff.
Checking for Ponding: Identifying areas of standing water that haven't drained within 48 hours after rainfall, which can be a sign of inadequate drainage.
Material Integrity: Checking the condition of the roofing membrane, including built-up roofs (BUR), modified bitumen, thermoset (EPDM), or thermoplastic (PVC, TPO) for any signs of damage or wear.
Seams and Joints: Examining seams, joints, and flashings to ensure they are intact, properly sealed, and not showing signs of separation or leaks.
Inspecting Penetrations: Looking at all penetrations through the roof, such as vents, pipes, and HVAC units, to ensure they are properly sealed and flashed.
Roof-Mounted Equipment: Checking the installation and base supports of roof-mounted equipment to ensure they do not compromise the roof membrane.
Edge Flashing and Trim: Inspecting flashings at the perimeter and roof edges for any signs of damage, corrosion, or detachment.
Condition of Parapet Walls: Evaluating parapet walls for stability, coping, and waterproofing integrity.
Roof Deck: Checking the roof deck from inside the building (if accessible) for signs of moisture, rot, or corrosion.
Support Structures: Assessing the condition of underlying support structures for any signs of distress or failure.
Walkways and Safety Markings: Ensuring that safe walkways and markings are present and in good condition for maintenance personnel.
Guardrails and Fall Protection: Verifying the presence and condition of safety features like guardrails, especially around roof access points.
Water Testing: In some cases, water tests may be performed to identify hard-to-detect leaks or vulnerabilities in the waterproofing system.
Infrared Thermography: Utilizing infrared cameras to detect areas of moisture intrusion or inadequate insulation.
Detailed Report: Providing a comprehensive report with findings, photographs, and recommendations for maintenance or repair.
Maintenance Recommendations: Suggesting preventative maintenance measures to prolong the roof’s life and improve its performance.
Inspecting low-slope roofs regularly helps to identify potential problems early, preventing extensive damage and costly repairs, and ensuring the safety and protection of the building and its occupants.