Material & Decay

Material: Mortar & Plaster

Decay type: Mechanical damage

Decay reason: Due to renovation of ventilation or other equipment installment, this damage may not be prevented, and in the following years, this mechanical damage may lead to other deterioration such as cracks or detachment surrounding the existed damage position.

Material: Plastic (steps)

Decay type: Plant colonization

Decay reason: Plant colonization has similar cause as lichen and mould colonization: high himidity, regular rainy days and plant seeds in the air transferred by wind. Especially on the plastic material surface, it is much softer than cement and mortar, therefore, termly cleaning is necessary.

Material: Mortar

Decay type: Material loss

Decay reason: The reason for material loss at this position is not really easy to estimate. One possibility is the deformation of interior timber structure caused by temperature and humidity, and lead to material loss of mortar surface.

Material: Tile

Decay type: tile deterioration

Decay reason: This decay appeared on roof mainly as material loss and detachment of tiles caused by extreme wind and general rainfalls over the decades. It is fundamental deterioration which needs regular cleaning and conservation.

Material: Glass

Decay type: Abrasion

Decay reason: The matrial is basically applied to almost all openings of the building and received decays from exact weather and climate change, which could cause abrasion and deformation on the surface.

Material: Aluminum

Decay type: Rust and abrasion

Decay reason: The matrial is also widely applied to almost all openings of the building as frames to support glass inside. In the regular cleaning of opening can be enough to prevent from some fundamental deteriorations.