Structural roof loading appraisal at a further education campus
Four roof areas at a further education campus assessed for a proposed solar PV installation, each recorded by drone survey and appraised against wind and snow loading.
What the project needed.
The campus was being considered for solar PV and needed a structural answer before the installation was designed. The appraisal had to establish both the existing capacity of each roof and the effect of the proposed additional loading.
Work carried out
- Non-intrusive visual survey of the property, inside and out
- Aerial drone survey and record photography of four roof areas
- Structural roof loading appraisal
- Wind loading and snow loading assessment
- Justification of panels for gravity and uplift loading
What west lancashire college actually involves.
Four roof areas were surveyed and appraised, each with its own drone record and photographic appendix. The visual inspection covered the roof and the structure underneath it, looking for degradation and deflection in the primary members.
The existing structure was found to be in good order for its age, and the appraisal concluded that the roof and its framework could accommodate the loading anticipated from the proposed installation.
This work sits alongside a second campus appraisal carried out in the same period, so the assessments were produced to a consistent format. Estate owners comparing one building against another are poorly served by reports that each answer a slightly different question.
As with the other appraisals in this programme, fixing design was outside the scope and recorded as such.
On site.
Aerial survey of the Skelmersdale campus. Four roof areas were recorded and appraised.




West Lancashire College
69 page appraisal covering four roof areas, with wind and snow loading appendices and a drone photographic record for each roof.
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