Why the marble flooring of Saudi Arabia’s Two Holy Mosques remains cool even in summer

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The marble floor of the Grand Mosque in Makkah serves a practical purpose, helping regulate temperatures. (AFP file)
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The marble floor of the Grand Mosque in Makkah serves a practical purpose, helping regulate temperatures. (AFP file)
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A view of the Holy Kaaba at the Grand Mosque, with the Makkah Tower Clock in the background. (AFP file)
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Updated 14 April 2023
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Why the marble flooring of Saudi Arabia’s Two Holy Mosques remains cool even in summer

  • Stone from particular island in Greece scientifically proven to have natural, self-cooling properties
  • The Saudi leadership has imported Thassos marble for use in the Two Holy Mosques since 1978

MAKKAH: For centuries, the Two Holy Mosques at Makkah and Madinah have welcomed pilgrims from across the world. To the pleasant surprise of visitors, the glistening white marble floor that surrounds the Kaaba in Makkah remains cool beneath their feet, even during the hottest days.

While some have claimed that hidden cold-water pipes under the floor are responsible for its coolness, the real reason lies in the mosque’s unique choice of building material.

Marble from Thassos, an eastern Greek island near Kavala in the Aegean Sea, has one of the rarest characteristics ever found in the stone. Due to its pure white appearance and high reflection of light, Thassos marble — sometimes called “snow white” marble — has one of the lowest heat absorbances of any marble.




Marble quarry on Thasos island, northern Greece. (Dr Peter Tzeferis via Wikimedia Commons)

The stone has been quarried from the island since ancient times, and is still used all over Greece today. It has formed the walls, floors, and statues of some of history’s greatest sites, including the ancient Macedonian tomb at Amphipolis (the largest ever discovered in Greece) and Hagia Sophia in Istanbul.

The stone’s unique properties see its frequent use in luxury villas and interior decoration, though it does not come cheap. Individual tiles can range between $250 and $400 per square meter, according to Indian marble supplier RMS Marble.




Marble mined at a quarry in Thassos, Greece, is one of its most impressive features of the floor of the Grand Mosque in Makkah. (Shutterstock)

For decades, Saudi Arabia has imported the unique dolomitic marble for exclusive use at the Two Holy Mosques to provide relief and avoid unsafe surface temperatures, as mosque visitors are required to enter barefoot.

Undersecretary-general for technical, operational, and maintenance affairs at the General Presidency for the Affairs of the Two Holy Mosques, Eng. Fares Al-Saedi, told Arab News that Thassos marble is characterized by its extreme coldness, despite intense heat that may reach 50-55 C in the summer months.




Pilgrims use umbrellas to protect themselves from the extreme hear during summer, but on the marble floor they need no protection. (AFP file)

Al-Saedi added that the Kingdom’s leadership decided to import the self-cooling stone for the construction of wide yards and open spaces where millions of pilgrims pass annually.

Al-Saedi explained that the General Presidency supervises marble maintenance work across the area by treating, restoring, and then polishing the marble or replacing old and unusable tiles.

“Maintenance is carried out 24/7 by over 40 engineers and technicians … each marble slab is five centimeters thick, and what makes it stand out is its ability to absorb moisture through its delicate pores during the night and release that moisture during the day, making it cooler under high temperatures,” he said.

According to a study published in the international journal Construction and Building Materials in 2021, the thermophysical features of the stone both reflect and dissipate solar insolation heat.




Crates of high quality marbles from Thassos ready for shipping. (Courtesy of Thassosmarbles)

The study found that Thassos marble has an uncommonly high level of high solar reflectance and a high rate of thermal conductivity relative to limestone, another stone commonly used in Islamic architecture.

Collectively, these properties have proven to be capable of sustaining cool surface temperatures even during hot summer periods, and provide an overall reduction in night-time convective shedding of thermal energy into the overlying atmosphere.

At the same time, the marble adds to the mosques’ artistic ambiance, which provides an exceptionally memorable experience.

Another study carried out by a joint Saudi-Egyptian team and published in the Arabian Journal of Geosciences in 2018 referred to the marble as “heat-dissipating smart marble,” attributing its high whiteness purity to the stone’s dolomite-rich crystal formation.




White marble blocks ready for slicing. (Courtesy of Thassosmarbles)

Writer and heritage researcher Abdullah Al-Batati told Arab News that the unroofed and paved stone floor of the mataf (the place where pilgrims circumambulate the Kaaba) was slightly curved and filled with pebbles and stones smaller than the size of a bean before the pavement.

“Omar Ibn Al-Khattab was the first to stone the Mosque’s floor after the expansion of the mataf in 119 AH (737-738 AD); during the reign of Al-Walid bin Abdul-Malik, the mataf was covered in marble. In 145 AH (762-763 AD), the old floor was covered in marble in the era of Abu Jaafar Al-Mansour, and was tiled with marble in the era of Abbasid Caliphate in 284 AH (896-897 AD),” said Al-Batati.

“In 1003 AH (1594-1595 AD), flint stones were replaced with alabaster stones, while white bright marble covered the mataf’s floor in 1006 AH (1597-1598 AD) during the reign of Sultan Mohammad Khan. In 1344 AH (1925-1926 AD).”

He noted that during the reign of King Saud, the old marble tiles were removed from the old mataf, and the new mataf was leveled and paved. The two were separated by a dividing line of black marble which was brought in from several quarries across Saudi Arabia.




Undated view of the Holy Kaaba at the Makkah Grand Mosque crowded with pilgrims. (AN file)

Dr. Salma Hawsawi, professor of ancient history at King Saud University, told Arab News that King Abdulaziz carried out expansions at the Grand Mosque and the Prophet’s Mosque, which lasted until King Khalid’s reign in the 1970s and 1980s. The latter issued an order to expand the Grand Mosque in its current form and tile its floor with heat-resistant marble imported from Greece in 1978.

King Khalid ordered the tiling of Makkah’s Holy Mosque using heat-resistant white marble to level the site and remove pebble stones so that the mataf could comfortably accommodate the increasing number of worshippers and pilgrims.

“The second expansion of the Grand Mosque occurred between 1985 and 1986 during King Fahd’s reign, who also ordered the tiling of the courtyard around the Kaaba and the squares surrounding the Grand Mosque using cold white marble in a circular and lined manner, making it suitable for prayers,” Hawsawi told Arab News.

In continuation of past expansion projects, King Salman continued developing the services of the two Holy Mosques, as he ordered the completion of the third expansion, in addition to developing many projects, according to Hawsawi.




Cranes are seen in the background at construction sites behind Makkah's Grand Mosque on December 4, 2008 as Muslims from all over the world flocked to Saudi Arabia to perform the annual Hajj pilgrimage. (AFP file)

Hawsawi stated that the marble is imported from Thassos in the form of large blocks of stone, which are then processed and manufactured in the Kingdom’s factories by the Binladen Group, a leading contracting company supervising the construction and development of Makkah’s mosques.

“Engineers and technicians carry out regular inspection visits and maintenance works with high proficiency, and marble tiles that are no longer in good condition and have lost their coolness characteristics are replaced with new ones. The type of marble is natural, and neither the Kingdom nor Greece inserts any additives, nor does it have any impurities.

“This type of marble is rare and expensive; a single marble piece is five centimeters thick, 120 centimeters long and 60 centimeters wide. It absorbs moisture and cold at night through its pores to preserve them during the day. Thus, the surfaces of the Grand Mosque remain moderately cool all year long and for everyone to enjoy,” Hawsawi said.

 


KSrelief continues humanitarian efforts in Yemen, Sudan, and Lebanon

Updated 27 July 2024
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KSrelief continues humanitarian efforts in Yemen, Sudan, and Lebanon

RIYADH: Saudi aid agency, KSrelief, continued efforts to help vulnerable individuals and families this week in Yemen, Sudan and Lebanon, the Saudi Press Agency reported on Friday.

In Yemen, KSrelief distributed 90 food packages in Lahij Governorate, and 100 tents, 270 shelter bags and 618 food parcels in Marib.

In Sudan, the agency handed out 900 food packages to the displaced and neediest families in River Nile State, benefiting 5,177 individuals.

KSrelief continued implementing the Al-Amal Charitable Bakery project in Akkar Governorate and Al-Minieh District, north of Lebanon.

In its fourth phase, the project distributed from July 18-24 about 25,000 bags of bread daily to needy Syrians, Palestinians and the host community living in Northern Lebanon, benefiting 12,500 families.


Aqabat Shaar: Iconic Saudi mountain road a lifeline for Asir’s rugged beauty

Updated 27 July 2024
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Aqabat Shaar: Iconic Saudi mountain road a lifeline for Asir’s rugged beauty

  • The road through Aqabat Shaar connects the highlands of Sarat Asir with the coastal plain of Tihama
  • It is a vital conduit for travel, commerce, and tourism, connecting communities while showcasing the natural splendor of the region

RIYADH: Nestled in the heart of Saudi Arabia's southwestern region of Asir, Aqabat Shaar is one of the most iconic highways, celebrated for its breathtaking natural scenery and vital tourist attractions.
This mountainous area, known for its rugged terrain, used to pose significant challenges to access and mobility, which led to the creation of a road that has become indispensable to residents and visitors alike, linking the region to neighboring areas and governorates.

This monumental project involved cutting through solid rock, creating 11 tunnels, and erecting 32 bridges, resulting in a road approximately 14 kilometers long. (SPA)

A mere 23 kilometers from Abha city, the road through Aqabat Shaar connects the highlands of Sarat Asir with the coastal plain of Tihama. This crucial artery not only reduces travel time, but also plays a pivotal role in bolstering tourism in the region. Furthermore, it enhances the Kingdom’s standing as a global logistics hub by facilitating the seamless movement of trucks transporting a wide array of goods.
The construction of Aqabat Shaar began over 40 years ago, under the reign of the late King Fahd bin Abdulaziz. This monumental project involved cutting through solid rock, creating 11 tunnels, and erecting 32 bridges, resulting in a road approximately 14 kilometers long. The endeavor was a marvel of engineering at the time, designed to navigate the challenging topography and ensure reliable access.
The road recently underwent significant development to enhance its utility and safety. The Roads General Authority spearheaded a comprehensive maintenance project incorporating the latest international technologies and standards. This effort entailed a temporary closure of the road, which reopened last year to much acclaim.

Aqabat Shaar is not just a road, it is a testament to human ingenuity. (SPA)

The recent maintenance work on Aqabat Shaar focused on achieving the highest standards of quality and safety. Enhancements included the installation of modern lighting, clear road markings, informative signs, and warning vibrations. Additionally, concrete barriers were erected to improve road safety, ensuring that the road meets the increasing demands of the region’s expanding network.
Aqabat Shaar is not just a road; it is a testament to human ingenuity and determination carving a path through some of the most formidable terrain in Asir. It is a vital conduit for travel, commerce, and tourism that serves and connects communities while showcasing the natural splendor of the region.
As it evolves with ongoing developments, Aqabat Shaar remains a beacon of progress, illuminating the way forward for Asir's dynamic future.
 


ThePlace: Wadi Wajj, Taif’s historic water oasis

Updated 27 July 2024
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ThePlace: Wadi Wajj, Taif’s historic water oasis

  • Once a geographical divider splitting the city of Taif in two, it has evolved into a popular tourist destination

TAIF:  Wadi Wajj, a revered valley in Saudi Arabia's western governorate of Taif, boasts a rich tapestry of history and natural beauty.

Once a geographical divider splitting the city of Taif in two, it has evolved into a popular tourist destination renowned for its lush gardens, vibrant orchards, and breathtaking panoramas.
Professor Saleh Al-Khalif, an expert in Islamic history and civilization, said Wadi Wajj's has played a vital role in agriculture and its proximity to Makkah accounts for its historical significance.

Wadi Wajj's abundant springs provide a constant water supply throughout the year. (SPA)

The region's ancient irrigation systems, including hundreds of springs and wells, are a testament to its innovative water management practices.
Wadi Wajj's water resources have been instrumental in the area's development, fostering agriculture and infrastructure.

The valley's enduring springs continue to irrigate farms and support the local economy, underscoring its enduring importance to Taif.
 


Saudi Arabia joins 80 countries in historic deal on e-commerce

Updated 26 July 2024
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Saudi Arabia joins 80 countries in historic deal on e-commerce

  • First digital global rules include recognition of e-signatures and protection against online fraud
  • The agreement also includes a component providing preferential treatment to developing countries

JEDDAH: About 80 countries including Saudi Arabia reached a historic agreement on Friday on rules governing global digital commerce, including recognition of e-signatures and protection against online fraud.

“We negotiated the first global rules on digital trade,” EU trade chief Valdis Dombrovskis said after the deal in Geneva following five years of negotiations.“This will facilitate e-transactions, boost innovation, and integrate developing countries into the digital economy,” he said.

Britain said the agreement would commit all participants to making customs documents and processes digital and recognizing e-documents and e-signatures, and put in place legal safeguards against online fraudsters and misleading claims about products.

Once in place, the deal “will make trade faster, cheaper, fairer and more secure,” Britain said in a statement.

The text of the agreement says the parties will seek to limit spam and protect personal data, as well as offer support to least-developed countries.
Ninety-one of the World Trade Organization’s 166 members took part in the negotiations, including Saudi Arabia, China, Canada, Argentina and Nigeria.
Digital commerce is growing far faster than its traditional counterpart.
The OECD group of economically developed nations says it estimated that in 2020, e-commerce already made up a quarter of global trade, making it worth just under $5 trillion.
Despite its growing importance, “no common set of global rules exist,” said British Trade Secretary Jonathan Reynolds.
Finalizing the negotiations “is a huge step forward in correcting that and ensuring British businesses feel the benefit.”

The talks were launched in 2019, with around 90 negotiating countries — representing 90 percent of the WTO membership — including heavy-hitters like the United States, the European Union and China.
Australia, Japan and Singapore, which have jointly been leading the Initiative on Electronic Commerce talks, presented a joint statement during a closed-door meeting at the WTO confirming that “after five years of negotiations, participants had achieved a stabilized text.”
But actual implementation of a deal could still be years off.
A small number of negotiating countries have yet to sign on, including the United States, Brazil, Indonesia and Turkiye, the declaration said.
“The text released today ... represents an important step forward for the WTO in a sector of growing importance to the global economy,” US ambassador and Deputy US Trade Representative Maria Pagan said in a statement.
But the United States considers that “the current text falls short and more work is needed,” she said, pointing in particular to an “essential security exception.”
The co-conveners of the talks have in recent months stressed the importance of landing a deal, stressing it could facilitate electronic transactions, promote digital trade and foster an open and trusted digital economy.
“This would be the first-ever set of baseline digital trade rules,” Singapore’s ambassador to the WTO Tan Hung Seng said in April.
“It would contribute to the growing e-commerce in our countries by providing greater legal predictability and certainty, against the backdrop of increasing regulatory fragmentation,” he said.
In Friday’s statement, UK Science Secretary Peter Kyle said the agreement aimed “to help people use technology safely by protecting them from fraud, while driving economic growth through the digitalization of trade so it’s faster and more secure.”

Preferential treatment

The agreement also includes a component providing preferential treatment to developing countries.
In addition to paving the way for digitalising customs documents and processes, the text also seeks to make permanent a long-held moratorium exempting electronic transactions from customs duties.
The moratorium has been in place since 1998, and has been extended at each WTO ministerial meeting since. It is currently set to expire in 2026.
“Once in force the agreement will permanently ban customs duties on digital content,” the British statement said.
The aim is to incorporate the digital trade rules into the WTO legal framework, but that would require consensus backing from all members, including those not part of the deal.
That could be tricky at a time when countries like India and South Africa are balking at what they see as a proliferation of plurilateral agreements within the WTO rather than the all-but-impossible multilateral deals backed by all members.
One solution, observers say, could be for the signatories to move the agreement to another international body. But if they do that, they would not be able to rely on the WTO’s mechanism for resolving trade disputes.

(With Agencies)


Saudi ballet star, 18, dances to inspire dreams

Updated 27 July 2024
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Saudi ballet star, 18, dances to inspire dreams

  • Halaa Nagadi desires to represent Kingdom on world stage
  • Hopes others ‘embrace this beautiful and expressive art form’

RIYADH: Saudi Arabia ballet dancer Halaa Nagadi, 18, is captivating audiences with her unwavering passion and hopes others would be inspired to “embrace this beautiful and expressive art form.”

She is currently preparing for the 2024 Dubai International Dance Competition set to start on Nov. 17 that will have professional and amateur dancers participating from all over the world.

“I became interested in ballet when I was on a journey to find a dance form that truly resonated with me,” Nagadi told Arab News. “The way ballet dancers could convey such powerful emotions and narratives through their bodies was simply captivating.”

Halaa Nagadi is currently preparing for the 2024 Dubai International Dance Competition set to start on Nov. 17 that will have professional and amateur dancers participating. (Supplied)

From a young age, Nagadi was mesmerized by the graceful movements and emotive storytelling of ballet, and she has pursued her dream with determination.

“One of my greatest goals is to represent Saudi Arabia on the international ballet stage,” Nagadi said. “I want to showcase the talent and artistry that exists within our country, and inspire others to embrace this beautiful and expressive art form.”

FASTFACTS

• Though ballet may not have been a typical path for a young Saudi Arabia woman, Nagadi was undeterred.

• She immersed herself in studying ballet, first through online videos and then by seeking out local and international training opportunities.

Though ballet may not have been a typical path for a young Saudi Arabia woman, Nagadi was undeterred. She immersed herself in studying ballet, first through online videos and then by seeking out local and international training opportunities.

“Balancing my studies in tourism and event management at King Abdulaziz University with my rigorous ballet training has not been an easy task,” Nagadi revealed.

“But I’ve remained steadfast in my pursuit, spending four to eight hours each day honing my skills, whether it’s at the ballet studio or the gym, ensuring that I am constantly improving and pushing the boundaries of my craft.”

Nagadi’s journey has not been without its challenges, however. Finding suitable ballet facilities in Saudi Arabia has been a significant hurdle, and sourcing specialized equipment is proving to be an ongoing obstacle, she explained.

Undaunted, Nagadi has sought out opportunities abroad, including a summer program in Romania and a ballet performance opportunity in Turkiye.

“I also took a masterclass for professional dancers from the principal of the Royal Ballet in London,” she added.

Nagadi’s dedication and passion have not gone unnoticed locally. “I have received the support of the Saudi Ministry of Culture, who have provided me with opportunities to showcase my talents at local events, such as the Taif Rose Festival and a theatrical performance that fused Arabic music with ballet,” she said.

As Saudi Arabia’s arts and culture scene continues to evolve, the ballet talent envisions a future where the dance form will flourish and draw audiences from across the Kingdom.

“I believe the ballet scene in Saudi Arabia will only continue to grow and develop,” she said. “More and more people are becoming interested in learning and practicing this art form.”

Nagadi’s unwavering determination has not only earned her recognition within the Saudi Arabia arts community but has also inspired a new generation of young people to explore the world of ballet.

Her story is a reminder that with hard work, dedication, and a willingness to challenge societal norms, anything is possible.