Case Study | Retail Bank, Oxfordshire

The Brief

 

This bank is housed in a Georgian mid-terrace, four-storey property in an Oxfordshire town high street, in one of Britain's oldest towns.  The Branch occupies a narrow, terraced building extending between the two streets.  It has the added complication of having a bus stop at the front of the bank.  

23107493E
23107493E
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Screen Shot 2016-11-13 at 13.17.42
Screen Shot 2016-11-13 at 13.17.42
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There is a tandem pitch roof with a valley housing a glass lantern roof light.  The front pitch is higher than the rear.  The is an access hatch to the lantern skylight and valley between the two slate pitch roofs so some maintenance is possible without scaffolding.

The Objective

 

The bank's maintenance company wanted aerial drone-based roof inspection and survey to:

  • give a clear photographic record of the roof's precise layout and condition, plus inspect and record the precise condition of:

    • the two / three set of chimneys, only one is shown on the plans

    • pitched roof ridge tiles

    • roof tiles

    • flashing

    • valleys

    • top 8 - 10 brick courses on each elevation

    • side, rear and front walls, coping and gullies

    • newly replaced flat roof (rear of building)

Roof Survey Oxfordshire

 

 

 

The benefits to the bank's facilities management company

  • Significantly reduced costs not only in terms of financial outlay but also in resource to manage the inspection project not just in terms of scaffolding, the various permissions to erect scaffolding in this busy high street location but also in resources to carry out the inspection and meet the various health and safety requirements needed.

  • Much reduced health & safety risk.

  • Non-invasive process with no risk to damage to the Georgian structure.

  • Eliminating the need to have scaffolding at all in this case on the basis of the information provided by the inspection & survey work.

  • Minimal disruption / footprint to the bank, its staff and customers plus the bank's neighbours and local residents / general public - Thames Valley  Drones was able to precision fly from the very small footprint available from the flat roof at the rear of the building - see footprint.

  • Reduced survey time (40 minutes flying time in total) as opposed to man days to have an inspection team on site to provide the same information.

  • Provided greater access to areas where scaffolding would be extremely costly or impossible to reach.

  • High quality / High resolution imagery much of which would not be possible even with scaffolding.

  • The ability to zoom in on specific areas in individual images.

  • Ongoing resource for facilities management teams to use long after the drone survey is complete

  • Easy to repeat for this site if a more detailed inspection is required and easy to replicate for other similar sites.

  • Environmentally-friendly solution.

Project Method Statement

 

Click here to see the full project method statement for this project

Client quote

"We are so impressed by what the drone aerial imaging can achieve and the quality of the images we get from it and with so minimal a footprint, it will give our facilities managers all they need and MORE' - Client Contract Manager

The results​​

360 degree view of the site

 

Fly-through of the site

 

Single Chimney Pot & Coping

Sequence Single Chimney Side.00_00_36_07.Still001
Sequence Single Chimney Side.00_00_36_07.Still001

Roof Survey Oxfordshire

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DJI_0003.MOV.00_01_51_24.Still006E
DJI_0003.MOV.00_01_51_24.Still006E

Roof Survey Oxfordshire

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DJI_0021.MOV.00_03_52_16.Still002
DJI_0021.MOV.00_03_52_16.Still002

Roof Survey Oxfordshire

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Sequence Single Chimney Side.00_00_25_29.Still005
Sequence Single Chimney Side.00_00_25_29.Still005

Roof Survey Oxfordshire

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Front Elevation, Coping & Gulley

DJI_0025.MOV.00_04_11_14.Still005
DJI_0025.MOV.00_04_11_14.Still005

Roof Survey Oxfordshire

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DJI_0025.MOV.00_02_42_18.Still003
DJI_0025.MOV.00_02_42_18.Still003

Roof Survey Oxfordshire

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Sequence Front Elevation.00_00_08_17.Still001_CU
Sequence Front Elevation.00_00_08_17.Still001_CU

Roof Survey Oxfordshire

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Sequence Single Chimney Side.00_00_36_07.Still001
Sequence Single Chimney Side.00_00_36_07.Still001

Roof Survey Oxfordshire

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Double Chimney Pot & Coping / Flashing

DJI_0020.MOV.Subclip011.00_07_35_14.Still004
DJI_0020.MOV.Subclip011.00_07_35_14.Still004

Roof Survey Oxfordshire

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DJI_0001.MOV.00_02_14_03.Still001E
DJI_0001.MOV.00_02_14_03.Still001E

Roof Survey Oxfordshire

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DJI_0025.MOV.00_05_18_04.Still006
DJI_0025.MOV.00_05_18_04.Still006

Roof Survey Oxfordshire

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DJI_0025.MOV.00_08_06_06.Still018
DJI_0025.MOV.00_08_06_06.Still018

Roof Survey Oxfordshire

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Roof Survey Oxfordshire

Please note that the images used on this page are broadly 2 MB in size converted for use on the web

however the source images are ultra high definition 3,830 x 2160 and

we can lift images of 15 MB from the video to download a sample image please use this link https://dl.dropboxusercontent.com/u/43243857/DJI_0020.MOV.00_04_44_29.Still012ECU2.tif

 

Roof Tiles & Ridge Tiles

 

 

New Flat Roof

DJI_0001.MOV.00_02_14_10.Still001
DJI_0001.MOV.00_02_14_10.Still001

Roof Survey Oxfordshire

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DJI_0003.MOV.00_03_17_29.Still011E
DJI_0003.MOV.00_03_17_29.Still011E

Roof Survey Oxfordshire

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DJI_0003.MOV.00_02_44_14.Still008E
DJI_0003.MOV.00_02_44_14.Still008E

Roof Survey Oxfordshire

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DJI_0021.MOV.00_03_52_16.Still002
DJI_0021.MOV.00_03_52_16.Still002

Roof Survey Oxfordshire

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DJI_0020.MOV.00_06_22_17.Still002
DJI_0020.MOV.00_06_22_17.Still002

Roof Survey Oxfordshire

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DJI_0003.MOV.00_01_43_03.Still005E
DJI_0003.MOV.00_01_43_03.Still005E

Roof Survey Oxfordshire

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DJI_0003.MOV.00_01_06_01.Still004E
DJI_0003.MOV.00_01_06_01.Still004E

Roof Survey Oxfordshire

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DJI_0003.MOV.00_03_17_29.Still011Ea
DJI_0003.MOV.00_03_17_29.Still011Ea

Roof Survey Oxfordshire

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Rear Elevation

DJI_0020.MOV.00_06_22_17.Still002
DJI_0020.MOV.00_06_22_17.Still002

Roof Survey Oxfordshire

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DJI_0021.MOV.Subclip002.00_00_29_10.Still001
DJI_0021.MOV.Subclip002.00_00_29_10.Still001

Roof Survey Oxfordshire

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DJI_0020.MOV.00_05_58_18.Still004
DJI_0020.MOV.00_05_58_18.Still004

Roof Survey Oxfordshire

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DJI_0003.MOV.00_00_45_22.Still003
DJI_0003.MOV.00_00_45_22.Still003

Roof Survey Oxfordshire

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Flat Roof

DJI_0027.MOV.00_02_20_24.Still007
DJI_0027.MOV.00_02_20_24.Still007

Roof Survey Oxfordshire

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DJI_0027.MOV.00_01_14_09.Still006
DJI_0027.MOV.00_01_14_09.Still006

Roof Survey Oxfordshire

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DJI_0027.MOV.00_00_21_01.Still008
DJI_0027.MOV.00_00_21_01.Still008

Roof Survey Oxfordshire

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