> Industrial Facility Roof Assessment
Industrial Facility
Roof Assessment
Survey undertaken by Lee Cunningham in a previous professional role. Client details have been removed for confidentiality.
Location, West Sussex, UK
Property Type: Industrial Facility
PROJECT OVERVIEW
We were instructed to carry out a detailed drone roof survey of a large industrial facility to assess the condition of the roof and identify any defects or maintenance issues. The survey was completed using high-resolution aerial imagery, allowing for a safe, efficient inspection with zero disruption to operations.
BUILDING TYPE
Industrial Facility
ROOF AREA
Approx 25,000 m2
INSPECTION METHOD
Drone Survey
SURVEY DATE
May 2024
WEATHER CONDITIONS
Clear Skies
REPORT TURNAROUND
5 Working Days
INSPECTION SCOPE
Roof coverings
Plant and equipment areas
Rooflights and skylights
Access systems and walkways
Rainwater goods and drainage
Cladding interfaces
Parapets and flashings
Gutters and outlets
Penetrations and upstands
Roof fixings and sheet laps
RISK SUMMARY
Risk Category
Rating
Water Ingress Risk
MEDIUM
Structural Integrity
LOW
Maintenance Priority
MEDIUM
LOW
Immediate Safety Risk
Overall Roof Condition
FAIR
ACCESS & METHOD
Drone Inspection
No Roof Access Required
High Resolution Imagery
Zero Disruption to Operations
782
Images Captured
48
Roof Elements Inspected
17
Defects Indentified
Approx. 25,000 m²
Roof Area Surveyed
3-4 Hours
On Site
CHALLENGES ENCOUNTERED
Large roof area with multiple sections and varying roof types.
Restricted access due to on-site operations and busy yard activity.
Several areas of the roof were difficult to access safely without aerial inspection.
Requirement for minimal disruption to daily business operations.
KEY FINDINGS
Several areas of membrane damage and blistering identified across the roof.
MEDIUM
Multiple instances of ponding water due to inadequate falls and blocked outlets.
LOW
Sealant deteriation around rooflights and penetrations.
HIGH
General wear and tear consistent with the age of the building.
MEDIUM
RECOMMENDATIONS
Repair damaged membrane sections
Clear and maintain all guttering and outlets to improve drainage.
Reseal rooflight and penetrations to prevent leaks
Schedule a folllow up survey in 12 months
ORTHOMOSAIC OVERVIEW
High-resolution orthomosaic created
from 612 aerial images, providing a
measurable, accurate overview of
the entire roof.
EQUIPMENT USED
DJI MAVIC 3 PRO
48MP Camera
Optical Zoom
GPS Positioning
Orthomosaic Mapping
Roof Condition Assessment
WHY CHOOSE CRS
CAA Registered Drone Operator
Qualified Building Surveyor
Fully Insured
Detailed Digital Reports
ANNOTATED FINDING EXAMPLE
DEFECT PRIORITY MATRIX
LOW
DEFECT TYPE
Rooflight damage
Ponding Water
Sealant deterioration
HIGH
LOW
0-6 Months
MEDIUM
MEDIUM
HIGH
RISK
PRIORITY
ACTION TIMEFRAME
Gutter debris
Minor membrane wear
Loose fixings
HIGH
MEDIUM
LOW
LOW
LOW
LOW
0-3 Months
3-12 Months
6-12 Months
3-12 Months
Immediate
PLANNED MAINTENANCE PROGRAMME
IMMEDIATE
Repair damaged membrane and rooflights
SHORT TERM (0-3 MONTHS)
Clear and maintain all guttering and outlets to improve drainage
PLANNED (0-12 MONTHS)
repair roof lights and penetrations to prevent leaks
ONGOING (12 MONTHS)
Schedule a follow-up survey in 12 months
EXECUTIVE SUMMARY
OVERALL ASSESSMENT:
The inspection identified several maintenance items together with localised defects requiring planned remedial work.
No immediate structural concerns were observed during the inspection however, repairs to damaged roof elements, rooflights flashing and rainwater goods are recommended to maintain building performance and extend its service life.
PRIORITY ACTIONS:
✓ Repair damaged membrane sections
✓ Clear gutters and outlets
✓ Reseal roof-lights and penetrations
✓ Improve drainage and fall
✓ Schedule a follow up survey in 12 months
Professional. Precise. Zero Disruption.
WHAT YOU'LL RECEIVE
See exactly what you'll receive. Our detailed reports include high-resolution photographs, findings, risk assessments and clear recommendations.
Detailed findings and condition assessments
Annotated photographs
Risk ratings and priority matrix
Maintenance recommendations
Delivered digitally in PDF format
12 Page Sample Report (3.2 MB)
SURVEY GALLERY
High-resolution drone imagery captured during the inspection.
Client-sensitive information has been removed where appropriate.
