ZAVZA SEAL LLC
Lally Column Service Provider in Long Island NY
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What are lally columns?
Lally columns, a term coined in honor of Irish entrepreneur John Lally, who introduced them in the late 1800s, are essential architectural elements designed to provide vertical support within structures. These columns consist of long, round steel pipes typically installed vertically to support beams or timbers across wide spans.
In construction, Lally columns play a pivotal role by helping distribute the weight of a building, reducing the likelihood of sagging or bending in structural elements. Lally columns are often filled with concrete to reinforce their stiffness and strength and prevent foundation-related issues.
You’ll frequently find Lally columns in basements in residential buildings, which serve as crucial load-bearing supports. While they can remain in place as permanent fixtures, they are commonly used as temporary supports when constructing permanent structural features. These columns have head and foot plates to distribute loads and evenly prevent damage to the supported wood.
How do Lally Columns work?
Lally columns serve as vertical pillars within edifices, responsible for the crucial task of transmitting the immense weight of the superstructure to the underlying foundation. The weight-bearing potential of these columns hinges upon an array of factors, encompassing their diameter, wall thickness, material composition, and overall length. When it comes to longer columns, the propensity for buckling or deformation under the imposed load necessitates a proportional increase in diameter to sustain comparable weight.
In the realm of construction, established norms govern the load-carrying capacity of lally columns, drawing upon the dimensions of their diameter and length. It is imperative to engage the expertise of a structural engineer or another qualified professional prior to the selection and installation of lally columns. Such caution arises from the fact that the weight capacity is contingent upon the installation technique employed, as well as the existing conditions of the foundation and surrounding structure.
Temporary vs. Permanent Lally Columns
Lally columns come in two primary types: temporary and permanent. Temporary columns are commonly used to brace floor joists when removing walls. In contrast, permanent columns are installed in basements or crawlspaces to reinforce the structure beneath a house.
Adjustable Lally Column Range
Adjustable Lally columns, also known as screw jacks or basement support columns, are versatile vertical supports that can be adjusted to a specific height. They consist of telescoping sections, allowing for extension or retraction to achieve the desired height.
Non-Adjustable Lally Columns
Non-adjustable Lally columns are fixed in length, and any necessary adjustments require cutting the steel column. Typically, these columns have an 11-gauge steel construction with a 4-inch diameter. They can be covered with materials like wood and drywall or left exposed, with the option to paint them if desired.
Examples of the Use of Lally Columns
Lally columns are commonly employed during home renovations. When removing a load-bearing interior wall, builders or contractors replace it with a series of Lally columns to maintain the house’s structural integrity. These columns are later removed when the wall is rebuilt or alternative bracing is implemented.
In challenging spaces like crawlspaces and basements, shorter jack posts are often used to address sagging floors.
How we Install Lally Columns
The installation of Lally columns follows a step-by-step process:
- Measure the space where the column will be placed.
- Attach an upper plate to the structure.
- Secure a plate to the Lally column itself.
- Raise the Lally column into position.
- Install the column securely.
- Remove the lever used for positioning after fixing.
Why Hire Us?
We focus only on waterproofing to ensure you work only with the best
We use only high quality materials to ensure years of uncompromising performance
We deliver quality waterproofing service at reasonable prices
5 Star Service
Our team is committed to delivering 100% customer satisfaction
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We set up a phone call and a subsequent meeting on location to understand the size of your project
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We deliver a quote for your work and if you agree provide a contract to start the job
Our team of experts performs the work on location
Our project manager ensures you are completely satisfied with the results
5 Star Google & Home Advisor Reviews
I received a few quotes to get the walls in my home filled in with blown in insulation. Zavza Seal was affordable and they did an excellent job.
They were very concerned with cleaning up, which I appreciated. I felt the difference in my home immediately. No more freezing cold walls. I recommend them, hands down.
Our experience with Zavza Seal was wonderful and smooth. The crew is well organized. They listen to your plans. They showed out in time. They left everything clean. They did an amazing job! I highly recommend this company.
Efficient, courteous and responsible workers. The job was quoted as being completed in 2 days but more work was required and they returned on the 3rd day and completed the job without additional charges. They reinsulated my crawlspace (not an easy job). I recommend Zavza Seal without reservation.
Couldn’t be more satisfied with the job Zavza Seal did. Brendan and Jake were accommodating, fair and extremely knowledgeable. Their team worked incredibly hard that day under difficult conditions and did a great job. I manage a multi-unit HOA and we will definitely be using them again.
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