A blog post

Premier Heritage on Track with Railway Surveys

Posted on the 13 January, 2010 at 6:06 pm Written by in Case Studies

Premier Heritage has recently completed timber and damp surveys of the Victorian canopies over the platforms at 2 of the busiest railway stations on the main line linking London with the West Country.

Platform 3 at Salisbury Station that has recently been given listed status by English Heritage.

Platform 3 at Salisbury Station that has recently been given listed status by English Heritage.

These structures which date back as far as the 1830’s provide weather protection for the main platforms and waiting passengers, and are supported on a series of cast iron stanchions and steel trusses. The structural timbers forming the canopies are of pine and underclad with tongue and grooved pine boarding.

One of the complicated Salisbury roof trusses on platforms 2 & 3.

One of the complicated Salisbury roof trusses on platforms 2 & 3.

Planned maintenance and proposed new roof coverings called for a full condition survey of the structural timbers to be undertaken.  This would determine any timbers that required repair or replacement as a consequence of timber decay, resulting from water ingress / damp penetration, but more importantly would also determine any timbers that were considered at risk, so as to allow preventative works to be undertaken, along with any targeted timber treatments.

The underside of Platform 1 at Basingstoke Station.

The underside of Platform 1 at Basingstoke Station.

 

 

 

 

 

 

 

 

 

 

 

 

The surveys included conventional techniques along with full moisture assessment of structural and other timbers and also included the use of the Micro Probe used for the non destructive investigation of concealed timbers. (For more information on the Micro Probe and to see it in action click here)

Moisture assessment of one of the main supporting timbers.

Moisture assessment of one of the main supporting timbers.

 

 

 

 

 

 

 

 

 

 

 

 

On completion of the surveys (which were carried out over a three month period) detailed reports were provided outlining the extent and areas of required repair and any other maintenance issues required to prolong the life of the canopies.

The underside of platforms 2 & 3 Salisbury Station.

The underside of platforms 2 & 3 Salisbury Station.

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