Preservation vs. Restoration at Brooklyn’s Historic Green-Wood Cemetery
Jahn Masonry Restoration News
by Michael Liguori, Senior Technical Specialist | Jahn Trainer
4d ago
Neela Wickremesinghe (in safety-green), a specialist in architectural and historical conservation at Green-Wood Cemetery We always know it’s going to be a fascinating project when we hear from Neela Wickremesinghe, a specialist in architectural and historical conservation. She’s the on-site conservator at Green-Wood Cemetery in Brooklyn, NY. Neela fascinates me; she’s part renegade archeologist, digging up chunks of history, and part restoration/preservation artist putting those pieces back together. Green-Wood is a National Historic Landmark, known just as much for its 478 acres of roll ..read more
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Important Announcement: Jahn Self-Cure Mortar
Jahn Masonry Restoration News
by Dennis Rude
1w ago
Dear Valued Customers, Cathedral Stone Products is again innovating for the masonry restoration and preservation industry. Our mission is to produce the most compatible, long-lasting, and safest masonry restoration and maintenance products available. In August of 2023, we announced that our Self-Cure mortars would now be our default, stocked product. Since that time, customers have overwhelmingly favored Self-Cure over our Traditional Cure. Our plan was always to find the right time to remove Traditional Cure as an option. We believe that time is now. Effective immediately, you will no longer ..read more
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We’re Hiring!
Jahn Masonry Restoration News
by Dennis Rude
2w ago
Now Hiring: Warehouse/Manufacturing Associate for our Hanover, Maryland headquarters. Cathedral Stone Products manufactures an extensive line of masonry restoration and maintenance products. The Warehouse & Manufacturing Teams are essential to Cathedral Stone's work. The Warehouse/Manufacturing Associate duties include: Operating Manufacturing Equipment (once trained) Operating forklifts General Warehouse Tasks Heavy Lifting This is a full-time position. Benefits include: Health/Vision/Dental Insurance 401K Location: Hanover, Maryland Contact: hello@cathedralstone.com ..read more
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Jahn Certification Training is Returning to 3-Days
Jahn Masonry Restoration News
by Michael Liguori, Senior Technical Specialist | Jahn Trainer
2w ago
We believe that there are two critical elements to world-class masonry restoration work: compatibility and craftsmanship. Our Jahn Masonry Restoration Systems are the most compatible masonry repair products available, and our substrate-specific mortars require proper installation to achieve the performance and longevity that’s synonymous with the Cathedral Stone and Jahn names. When our founder, Dennis Rude, initiated the Jahn Mortars Certification requirement in the mid 1980’s, the certification course was three days. In 2018, in an attempt to help our busy customers get certified faster, we ..read more
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Repairing Tuckahoe Marble — the Right Way
Jahn Masonry Restoration News
by Michael Liguori, Senior Technical Specialist | Jahn Trainer
1M ago
The tendency of Tuckahoe marble to “sugar” Tuckahoe marble was first quarried in Tuckahoe, New York—just north of Manhattan. Due to this proximity, you’ll see lots of Tuckahoe marble in Manhattan.  The greatest challenge of Tuckahoe marble is its tendency to delaminate into a powder — also known as sugaring. I’m regularly asked if this type of stone can be restored successfully. My response starts with a question: was a consolidant used on past repairs? Consolidants trap moisture and cause rapid deterioration of the substrate from the inside. It is difficult to impossible to repair extre ..read more
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Masons & Architects: Hope to See You at the New York Build Show!
Jahn Masonry Restoration News
by Michael Liguori, Senior Technical Specialist | Jahn Trainer
1M ago
..read more
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Thank You, Sharon!
Jahn Masonry Restoration News
by Dennis Rude
2M ago
Retirement is a bittersweet event. Especially when it’s someone who is both good at her job and fun to work with. That’s Sharon Henn to Cathedral Stone. Sharon oversees our Accounts Payable division and her sharp eye for those thousands of tiny details that keep things in order is matched only by her dedication in chasing down our owner to get the one task he hates doing, done. Signing checks. Sharon is retiring at the end of the year. She’s worked hard and she’s looking forward to relaxing on a cross-country trip she’s been planning with her significant other, Bill. We’re all going to miss be ..read more
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Masonry Bio-Cleaner: Biological Stain Remover & Light Duty Cleaner in One [DEMO]
Jahn Masonry Restoration News
by Michael Liguori, Senior Technical Specialist | Jahn Trainer
2M ago
When I’m asked about our Bio-Cleaner, I usually respond: imagine the leading biological stain cleaner and add our Light Duty Masonry Cleaner—that’s our Bio-Cleaner. It’s works great on stone, brick, terra cotta facades and concrete structures and walkways and is especially good on grave markers and statues. Most of the time we need more than just the biological stain removed; we need a general masonry cleaner to complete the job. This is a one and done product, and it’s one of my go-tos on structures that show even a hint of biological staining. It’s great in removing those stains and for peri ..read more
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Paint Stripper Leads to Discovery on Historic Manhattan Hotel
Jahn Masonry Restoration News
by Michael Liguori, Senior Technical Specialist | Jahn Trainer
2M ago
A wise decision was made to expose the various stone types and colors for their aesthetic and historical value, and not use whitewash stain. In 1883, Thomas Osborne built the St. George Residence, known today as Hotel 17, located in lower Manhattan. Not only was Osborne a developer and architect, he was also the owner of the stoneworks that supplied the stone for the building. Earlier this year, a facade restoration for the building kicked off. That’s where the discovery begins. Epstein Engineering called on Cathedral Stone early in the restoration project, beginning with the building’s first ..read more
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Avoid These Common Masonry Repair Mortar Scratch Coat Mistakes
Jahn Masonry Restoration News
by Michael Liguori, Senior Technical Specialist | Jahn Trainer
3M ago
Out of sight. Out of mind. It’s a risky philosophy when repairing and restoring masonry facades—especially when the repairs are deep and budgets are stretched. While a single-mortar approach is always the best path, sometimes a scratch coat is a necessity (if for no other reason than to save money). It may seem budget-savvy to use an inexpensive scratch coat for most of the depth and then complete the final few inches with a more expensive finishing product. Why put the budget into materials you won’t even see, right? Well, there are several reasons you’ll want to avoid this approach. Fi ..read more
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