Exterior wall finishes for tall buildings are a very important part of the building. They are responsible for giving the building its uniqueness among other factors such as shape.They are also very critical in determining the building safety in times of disasters such as earthquakes.For example, the 1989 Loma Prieta earthquake in San Francisco, U.S.A where 5 people were killed when the brick facade collapsed on the side walk Kenya, we have witnessed the collapse of the Sunbeam Supermarket canopy in 1996 resulting to several deaths.
During a conference on building structures held at Grand Regency hotel, Nairobi in the year 2006, the current Permanent Secretary in the Ministry of Roads, Engineer M.S.M Kamau gave a speech on the role of Structural Engineering in Buildings. He noted that most people assumed that the role of Structural Engineers in Buildings was only limited to the building frame and structure which should not be the case. He said that Structural Engineers have a role to play until final completion of buildings including finishes and gave an example of external wall finishes. He explained that to the layman, external wall finishes such as wall tiles look simple to fix but to the structural engineer, they mean that their self-weight should be taken into consideration and the mechanism of holding the tiles to place carefully structurally analyzed to ensure that they do not fall on passersby below and cause injuries.
He explained that a single tile could be weighing up to 5 kgs of which if not fastened to the wall adequately using the required strength, this could cause serious injuries to passersby below.The tiles above are quite heavy and if not structurally designed by a qualified structural engineer to hold in place, can fall on an unsuspecting pedestrian below.
As stated above, it’s important that all building industry consultants including structural engineers get involved in the decision to use ceramic tiles on the exterior walls.Large tiles which are heavier require care infixing to avoid them falling down and casing injuries.The most used adhesive in Kenya that sticks these tiles to the walls is cement slurry-regularly termed as ‘wet-set’.Other adhesives are available such as ‘thin-set’. This is a mixture of cement, sand and a chemical called methylcellulose. Methylcellulose holds water allowing the tile to be laid dry.
Vegan CBD Gummies are manufactured by Construction chemical manufactures, mostly paint manufacturers and come in pails. These are pre-mixed and come with manufacturer’s instructions on use.This building above, which used to be the famous Luthuli Fish and Chips and currently a shopping mall, has ceramic tiles wall finishes in the lobby area.