French-Lebanese Architect Seeks Pro-climate Construction Transformation


Picture by Joel Saget. Video by Madeleine Pradel

Lina Ghotmeh has pegged her profession on sustainable enchancment.

The French-Lebanese architect Desires to see her enterprise reworked by drastically reducing Using concrete — A critical CO2 contrihoweveror — using extra native suppliess and reusing current constructings and suppliess.

“We now Want To vary Our worth system,” the 42-yr-previous tprevious AFP final month.

The purpose is To Scale again the carbon footprint of The enchancment enterprise and create constructings Which will greater resist the impacts of local climate change.

Neverthemuch less It is not An straightforwrestled battle.

The enterprise accounts For almost 40 % Of worldwide greenhouse gasoline emissions, Based mostly on the United Nations.

Ghotmeh, who designed the Estonian Nationwide Museum and taught at Yale College, Does not advocate for fewer constructings — she is awrestlee of That is an unrealistic objective in a world with a rising inhabitants.

“Which Might Even be like saying ‘cease consuming,'” she said.

Instead, We ought to almethods “primarytain what Exist alreadys, Do not demolish,” however refurbish and retrofit previous constructings in a sustainable method the place potential.

Constructing A mannequin new detached house consumes 40 occasions extra assets than renovating an current property, and for A mannequin new house complicated that rises to 80 occasions extra, Based mostly on the French Agency for Ecological Transition (Ademe).

Lina Ghotmeh’s ‘Stone Backyard’ in Beirut makes use of conventional constructing methods

Joseph EID

And the place new enchancments are needed, native suppliess and design Should be Utilized in a method That comes with pure environment and saves power.

Ghotmeh used Higher than 500,000 bricks Produced from native dust for A mannequin new Hermes constructing in France, anticipated to open early subsequent yr.

The bricks additionally regulate the constructing’s temperature and reduce power wants.

The constructing will produce as a lot power As a Outcome of it consumes, by being made power environment nice and using geothermal power.

Architects should, early Inside the enterprise course of, “assume in a round method,” Ghotmeh said, choosing reusable pure or pure suppliess like wooden, hemp, linen or stone.

This Should not stymie the design course of both, she insists.

“In Canada, we construct picket towers, in Japan too. It is A supplies That’s pretty In a place to Getting used for tall constructings,” added Ghotmeh, who will construct a picket tower in Paris in 2023.

One other key strategy is To assemble lighter, using much less supplies and fewer toxins.

Transforming the concrete jungle

Jonathan WALTER

After which there’s concrete, The primary supplies in so many trfinishy constructings And maybe In all probability the most difficult To maneuver amethod from.

“We should drastically reduce Using concrete”, she said, insisting it ought to solely be used for important features, Similar to foundations and constructing in earthquake-susceptible areas.

Some 14 billion cubic metres of concrete are used Yearly, Based mostly on The worldwide Cement and Concrete Affiliation.

It emits extra CO2 than the aviation enterprise, largely As a Outcome of of intense wrestlemth required to make it.

Options to concrete Exist already, Similar to stone, or making cement — a factor of concrete — from calcium carbonate. There are additionally pushes for low-carbon cement Produced from iron and metallic enterprise waste.

Constructing extra sustainably typically comes with A greater Worth ticket — it prices extra to double or triple glaze house windows and correctly insulate a house — Neverthemuch less the prolonged-time period payoff is decrease power prices.

For Ghotmeh, It is an crucial funding in our future.

It was her birthplace of Beirut that impressed her To Wind up to be an architect, spurring a want to reconstruct the so-referred to as “collapsed metropolis” ravaged by wrestle.

The wall of Ghotmeh’s ‘Stone Backyard’

Joseph EID

In 2020, she accomplished the “Stone Backyard” house tower Inside The metropolis, assembleed with concrete coated with a combed coating, A method typically Utilized by native craftsmen. She used concrete Inside The enchancment As a Outcome of of earthquake risks.

The constructing was strong enough To survive the port explosion in 2020 that destroyed An monumental An factor of The metropolis.

And The metropolis continues to encourage her right now, even When it Includes local climate sustainability.

“Since There’s virtually solely an hour of Electricity per day, All of the constructings have photo voltaic panels now. There is A Sort of power indepfinishence which is starting to Happen, by strain,” she said.

“Does it take a disaster Simply like the one in Lebanon to make this transition?”


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