Raghwat Al Janoub Maintenance and Cleaning
Building facade cleaning in Khamis Mushait
Khamis Mushait is a large highland city spreading across a wide plain with apartment blocks and busy commercial streets. High elevation, seasonal monsoon rains and thick fog mean moisture stays high all year. Shaded north facing elevations grow algae and black mould. Mortar leaches white salts. Cleaning here must work with the damp weather, not against it.
Why a facade needs regular cleaning
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The surface is protected
The wrong product costs more than the dirt it removes.
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Access decided on site
We do not pick the access method from an office.
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Glass stays clear
Calcium scale on glass turns into permanent etching if it is left.
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The building keeps running
We plan the access and the working hours around how the building is used through the day, and we protect the ground, the entrances and anyone passing below.
Why the job is different in Khamis Mushait
Algae and mould on north facing facades in Khamis Mushait grow very fast because of constant moisture and the deep shade of afternoon and night. The whole method is set out in our building facade cleaning guide.
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Black algae and mould thrive on shaded north facing walls
High humidity and the long shadow on north facing elevations create ideal conditions for algae and mould. Black mould appears on stone, cladding and marble. On glass the mould reduces transparency. Standard washing does not kill mould fully. We need products that kill the microbes, not just wash them away.
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Mineral salts seep from damp mortar and stone continuously
Stone and concrete that are damp all the time leach white salts. Mortar between stones releases white mineral salt that appears on the surface. These salts are hard to remove and return fast if the stone stays wet. Cleaning must be followed by moisture protection, not re wetting.
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Thick fog sits until midday in certain seasons, keeping facades damp
Fog in Khamis Mushait lingers until mid morning in winter. This fog carries moisture that deposits on facades. East and north facing elevations stay wet all the time. Cleaning in fog may make things worse. Wait until fog lifts and air dries.
What's Included
The high plateau on the edge of the humid Tihama lowland traps sea fog and moisture. North and east facing facades stay damp through the year. Water soaks into pores and cracks for weeks at a time.
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Roof survey and anchor points
Roof surveys check for open pores in concrete and stone where moisture penetrates inside. Salts may be accumulating beneath the surface that will cause future damage.
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Access chosen: rope or powered
Rope descent from roofs is safe but humid air makes ropes slippery. Safety equipment needs extra care and maintenance.
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A test patch before the whole elevation
A test patch on stone shows whether chosen products leave salt residue or remove mould adequately without harm.
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Glass and curtain walling
Curtain walling may trap moisture from damp elevations. Cleaning inside and outside together stops mould growing hidden behind the glazing.
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Cladding and stone, pH-neutral
All stone and cladding needs precise pH neutral products because the salts here are sensitive to strong treatments.
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Ground and passers-by protected
Ground around facades may be damp year round. Slip protection and water management for workers and public is essential.
Khamis Mushait on the map
Khamis Mushait sits about 15 km from Ahad Rufaidah and about 26 km from Abha.
Open in Google MapsHow we work
Survey from the roof
Choose access and products
Wash top to bottom
Inspect and hand over
Some of our work
Photos from our team's work.
What is different about Asir Region
Asir climbs from the hot, humid Tihama lowland at Muhayil to the highland plateau of Abha and Khamis Mushait. The high country gets summer monsoon rain, thick fog and cold winter nights, so stone villas, painted concrete and terraced villages such as Rijal Almaa stay damp for weeks, and moss and algae take hold on the shaded side of a facade. Khamis Mushait is the larger commercial city of apartment blocks and showrooms. Wet stone stains, mortar leaches white salts, and cleaning has to work with the weather rather than against it.
Other services in Khamis Mushait
The room and the building around it are on one list.
