Arc.Oji Yahya keana

I'm an Architect

[Diary Of A Female Engineer @Irishnaija]

CONCRETE IS NOT WATERTIGHT — AND THAT IS WHY EVERY STRUCTURE NEED WATERPROOFING

By Engineer Roseline Davidson

I am on site right now, and what I am seeing reinforces a truth that too many people ignore.

The building we are working on is suffering from primary water ingress. The POP is peeling and falling down. The surfaces are damp and deteriorating. But that is not the worst of it. The frightening part is not what is falling off the wall — it is what is happening inside the concrete that you cannot see.

Most engineers will tell a client: "This is solid concrete — waterproofing is not necessary."

That is a dangerous misconception.

Concrete is porous. It is not watertight. It is full of microscopic capillaries, voids, and pathways. Rain, moisture, and water vapour will find their way through it — every single time. And when that water reaches the steel reinforcement inside — the very skeleton holding the building up — corrosion begins.

Rust expands. It pushes the concrete apart from the inside. Cracks widen. Spalling happens. The structure weakens — often long before anyone notices a single drop of water inside.

Waterproofing is not about keeping the wall dry so the paint looks nice. It is about keeping water away from the reinforcement so the building stays standing. It is not a cosmetic add-on. It is structural protection.

If you are building without proper waterproofing integrated into the design, you are building with a hidden expiration date. And when the signs finally appear — damp patches, peeling finishes, falling POP — the damage has already been done deep inside.

Do not wait for the surface to tell you there is a problem. By then, the water has already reached the steel.

The author is a Structural and Waterproofing Authority, Founder of ProSeal® and DC Tech Africa Ltd.

#StructuralWaterproofing #ConcreteScience #ReinforcementProtection #ProSeal #BuildingIntegrity @Prosealnigeria

[Sarki. @Waspapping_]

A lot of Muslims don’t know this. Please retweet so it can benefit other Muslims. 🤲🏽

[Arc.Oji Yahya keana @ojikeana]

@najeebabubakarb The last part din ne kuwa ya faru da ni. Gashi har yanzu bakowa ya ke so yayi kasuwan ci da ni ba🤣

[Mohammed Jammal @whitenigerian]

Ku gan rayuwanan. Very sad walahi. 💔

[Mal. Imran U. Wakili (PULLO) 👑 #iSTANDWITHELRUFAI @IU_Wakilii]

I watched recent interview of FCT Minister Nyesom Wike where is claiming he never sold any waterways in Abuja.

Wike is definitely suffering from amnesia, unfortunately for him we are not.

This is one of many!

[A&A Textiles @kori_kolo]

@___Bils Imam shafi’i matarsa ta rasu yau gobe yayi aure. Yace ita matarsa ta yi sa’a ta mutu da daraja na aure. Shima so yake ya mutu da aure.

[Salim Ja’afar Mahmoud @salimsajma]

When you look at things from a different perspective, you discover that many of your fears were nothing more than illusions.

[H’s mom @aiishadahir]

even in Islam, we're taught to make hijrah. if you don't like where you are, move. if your environment drains you, change it. if what influences you isn't good for you, walk away. there's nothing wrong with leaving what harms you

[Yadomah Bukar Mandara @Yadomah]

Job security but you can’t even secure your rent or your children’s school fees. The job is not secure at this point, you are not secured at all!

[Olóyè Somorin Osifeso @OloyeSomorin]

We like to copy things in Nigeria but unfortunately we don’t do a good job of that most of the time.

Thus three videos show a proper way of doing flat/hidden roof.

The way we do it here is on a wing and prayer.

[Najib_Bakori  @najeebabubakarb]

Hukumar Ilimi Ta ƙasa Tana Neman Masu Kwalin Degree, NCE and Diploma Da su Gaggauta Yima Kwalayen Lamination Kada su Yage!🥴

[servant of Allah @alouibrahim92]

Ya Allah,
by Your Grace and Mercy we start another new day in yet another new week. O Almighty Protector, as we leave our homes on our two feet and in good condition, May we return home when our work is done, equally on our two feet, in a better condition, and our dignity & integrity intact,
Ameen.

[Fact @Fact]

Life is weird. You can go from being strangers, to being friends, to being more than friends, to being practically strangers again.

[Hadiza Bello @HadizaB85863870]

This is a ₦10 million halal investment plan.

Which option do you think would give you the best return over the next 12 months?

OPTION 1
Invest the full ₦10 million in Sukuk at 19.75% annually, paid semi-annually.
That gives you approximately ₦987,500 every 6 months.
You can then invest the returns into:
•MTN ₦329,000
•Aradel ₦329,000
•Presco ₦329,000

OPTION 2
Invest ₦5 million in a Shariah-compliant fixed-income investment at 15% annually, with quarterly payments.
That gives you ₦187,500 every quarter.
The quarterly returns can be invested into:
•Aradel ₦62,500
•Presco ₦62,500
•MTN ₦62,500
The remaining ₦5 million goes into the Lotus Halal Equity ETF.

OPTION 3
Invest the full ₦10 million in Shariah-compliant stocks, divided equally:
•Aradel ₦3.33 million
•Presco ₦3.33 million
•MTN ₦3.33 million
All dividends received during the 12 months will be reinvested back into the stock portfolio to compound the returns.

[Nick's Pizza @Al_Must3rph3r]

Albani is of the opinion that in every local mosque.. A lawyer should occasionally rise up after fajr & enlighten congregation on constitutional rights, basic legal issues, loopholes, lawsuits tips

Doctor should teach CPR, Chronic diseases,prognosis, First aid care, debunk myths.
1/5

[Arcfunmi @Arcfunmi]

Meanwhile, if we are being honest, all of these could be accomplished within 6 months.

Open/competitive bidding brings qualified contractors on board; each contractor gets to build several units, and within 6 months, even 1000 units can be achieved. Except there are financial resource challenges.

[Arc. Áyòmídé George @vangeorgh]

That cost you think you’re saving by cutting out the Architect from your building project will come back to you 5x during the life span of the building..

[OddSpace Consult @OddSpaceConsult]

"A roof that performs well in Lagos may underperform in Kano, and a roof that looks elegant in a rendering can fail quickly when exposed to corrosion, poor ventilation, or inadequate fixings..."

Learn more on how roof designs differ and which of them can serve you!_

https://t.co/XWtjFhslmV

[Abu Jabir Penabdul @PenAbdull]

Paradise has been prepared for those who opposed their desires.