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Concrete Wall
  • Writer: Firas Abdelahad
    Firas Abdelahad
  • Feb 4, 2023
  • 3 min read

Updated: Sep 17, 2024

Exploring Basement Challenges in Pennsylvania Homes

Living in Pennsylvania often means residing in older houses, many of which come equipped with basements. It's highly likely that your home, if it's an older one, has a basement. Unfortunately, basements frequently face issues such as water infiltration, and those with water problems in the foundation walls often experience additional structural concerns like bowing, cracking, or leaning.

The construction of these foundation walls varies widely, ranging from materials like sandstone, terracotta, split-face concrete, concrete block (some reinforced, others not and hollow), brick, unreinforced coarse concrete, and reinforced concrete. Additionally, some walls have concrete footers, wood footers, or gravel bases, among other variations.

Given this diversity in construction types, it's our responsibility to offer homeowners the right guidance when they seek solutions for foundation-related challenges, whether it's addressing water problems, structural movements, cracks, or bulging and bowing walls.

In the image below, we measured a wall's bowing at 1.375 inches, using a high-quality laser self-leveling device to confirm the measurement. The homeowner had been informed by a foundation representative that it was bowing over 3 inches and that it was on the brink of collapse around its pivot point if the water problem wasn't addressed and anchor plates weren't installed.

Let us clarify that during our visit in January 2023, the foundation wall was far from collapsing.


Cracked Foundation wall
Cracked Foundation wall


The photo below show the side wall of the same house with a bow that measured to be around 1.25"


Horizontal Crack in Foundation wall
Horizontal Crack in Foundation wall

In the next two photos, you'll notice the same corner of the house—one taken from the interior and the other from the exterior. The interior photo clearly depicts the buildup of mold, while the exterior picture reveals the root cause, as you might have already guessed. It's the disconnected downspout that channels roof rainwater directly toward the foundation wall. This issue is quite common in many houses, and homeowners are often unaware of the need to address it.


To resolve this issue, it's imperative to repair the downspout and redirect the rainwater away from the foundation walls. This preventative measure is essential in preventing further structural damage. Moreover, addressing this repair is highly likely to eliminate the need for a French drain installation.

water damage Foundation wall
water damage Foundation wall


Downspout improperly draining
Downspout improperly draining

Frequently, when homeowners reach out to us, they discover that they can save a substantial amount of money on unnecessary expenses. Additionally, they receive expert guidance on the correct reinforcement methods that align with engineering standards and code requirements.


There's a clear advantage to consulting with professionals like us rather than contacting a salesperson. Our aim is not to sell you a product or service but to empower you with knowledge. We're here to help you gain a deeper understanding of your structure and make informed decisions.


If you require further assistance, please don't hesitate to contact us at 724-949-0004 or visit our website at www.pittdes.com. We're here to assist you.




Written by Firas Abdelahad, P.E.


Firas Abdelahad has been a practicing structural engineer since 2005, collaborating with a diverse range of professionals, including consultants, architects, investors, homeowners, contractors, and subcontractors. Together, they tackle the various challenges that can arise during the design and construction phases of projects.


The information and statements in this document are for information purposes only and do not comprise the professional advice of the author or create a professional relationship between reader and author.

 
 
 
  • Writer: Firas Abdelahad
    Firas Abdelahad
  • Oct 17, 2022
  • 3 min read

Updated: Jan 14

I will be discussing some of the recommendation as published in DCA6-2015 (Prescriptive Residential Wood, Deck Construction Guide based on 2015 International Residential Code). This write up is in no way meant to summarize DCA6-2015.

I am not reproducing the document but rather I am highlighting some of the information in it in efforts to make more people aware of such a great resource (free) that is available at everyone fingertips DCA6-2015


Engineers are trained to interpret codes, standards and other requirements of the local jurisdiction, also to use their best engineering judgement, training and education when reliable sources aren't available.


In the pictures below information provided to help builders and home owners determine decks maximum joist spans and overhangs. There are a lot of information available to help people get their projects built, and some of it just free like DCA6 2015.


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In the pictures below information provided to help builders and home owners determine decks’ maximum Beam Spans and overhangs also joist-to-beam connection detail as well as beam assembly detail.



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In the 2 figures below, I am sharing the recommended post to beam attachment requirements as noted in DCA6-2015.



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This attachment below is an example of a prohibited post to beam attachment per DCA6-2015. It is important to note that per the article published in the Structure Magazine in April 17th and written by John Showalter, P.E. And Loren Ross, P.E. (Residential Wood Deck Design, https://www.structuremag.org/?p=11302 ).

They do state that" It is important to note that prohibiting attachment of the beam to the sides of the post with fasteners only ensures wood -to-wood bearing. The design of fasteners for wet-services conditions requires significant capacity reductions and should be evaluated by a design professional" Based on this statement a more detailed and maybe lengthy calculations would be required to determine whether this indicated attachment satisfy minimum code and engineering requirements or not. For many people avoiding that engineering expense would just simply to comply with the prescriptive code and eliminate such connection.


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In the Figures below you will see a few recommended attachment of ledger board to band joist/rim joist and to foundation wall, also you will see the prohibited attachment per DCA6-2015



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Typical foundation options also discussed in DCA6-2015 as shown in the figure below


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Below you will see an example guard detail so builders and home owners can determine Guard Requirements for all decks that are 30" above grade.



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Examples of Guard Post attachments for required guard are shown in the few pictures below.


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Pictures below Explain stair & stair stringer requirements also show tread connection, stair guard requirements and stair stringer attachment detail.



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I hope I was able to provide some highlights for this great document, DCA6-2015. Also refer back to IRC and IBC for any additional information that is necessary and not discussed in DCA6.


Call us today if you need any further assistance: 724-949-0004

www.pittdes.com


Written by Firas Abdelahad, P.E.

Firas Abdelahad has been a practicing structural engineer since 2005, collaborating with a diverse range of professionals, including consultants, architects, investors, homeowners, contractors, and subcontractors. Together, they tackle the various challenges that can arise during the design and construction phases of projects.


The information and statements in this document are for information purposes only and do not comprise the professional advice of the author or create a professional relationship between reader and author.





 
 
 
  • Writer: Firas Abdelahad
    Firas Abdelahad
  • Feb 19, 2022
  • 1 min read

Updated: Sep 17, 2024

Do I need a structural engineer to evaluate if I can add a fish tank in my house ?

Fish Tank
Fish Tank


I often get requests from different clients about the impact of an added fish tank to their living room floor. Generally speaking a small tank may have negligible impact but often times people wants to add rather bigger size tank.

Evaluating the floor joists and floor ability to support such an additional weight is a wise decision to prevent sagging floor, even if you think your floor joists are currently healthy and don't have any sag.


I made a small example of how to calculate the weight and determine if your floor can support the weight or not. The bigger the area you distribute the weight over, the less of an impact on the floor and its supporting joists.


I hope you find the information valuable and helpful.


Calculations sheet
Calculations sheet

Call us today if you need any further assistance: 724-949-0004


Written by Firas Abdelahad, P.E.

Firas Abdelahad has been a practicing structural engineer since 2005, collaborating with a diverse range of professionals, including consultants, architects, investors, homeowners, contractors, and subcontractors. Together, they tackle the various challenges that can arise during the design and construction phases of projects.


The information and statements in this document are for information purposes only and do not comprise the professional advice of the author or create a professional relationship between reader and author.

 
 
 

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