engineering

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Window and Door Shimming: Code Requirements and Engineering Reality

Window and Door Shimming: Code Requirements and Engineering Reality Improper shimming is a structural installation defect, not a cosmetic issue. It becomes most critical when there is a large gap between the window or door frame and the structural buck. If that gap is not correctly bridged, the installation cannot perform as designed—regardless of sealants …

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Building Component Design Discovery Phase And The Following Engineering Process Explained

About Engineering Express’s Building Component Design Process Analyzing and engineering building products is complex — But it doesn’t have to be. With over 30 years of experience, Engineering Express has built a proven, systemized workflow that streamlines product engineering for manufacturers and the dealers who depend on it for permitting and construction. Let’s take a …

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How To Submit A Request For An Engineering Evaluation of Doors and Other Openings For Certification

Determining Pressure Ratings For Doors (or Windows) With Alternate Components Exterior doors exposed to weather are approved to withstand design pressures for a variety of conditions. Sometimes, though, the door type you want to use doesn’t match the product approval.  This article explores how such a change is evaluated by an engineer to provide a …

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3 types of glazing supports designed by engineers

Understanding the 3 Types of Glazing Supports

See this article for a breakdown of the three most common types of window / door / glazing support mullions in our articles section. Learn the difference between a mullion, supporting frame, and structural column and how they are used in a construction project.

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Glass Aspect Ratio Limitations in Florida’s High Velocity Hurricane Zone (HVHZ)

When A Glazed Opening Isn’t Exactly Square Often times a glazing product is approved for large missile impact, but requires a field modification for size. While the tested span cannot be exceeded and still meet the building code’s large missile impact requirements, the aspect ratio (the length to width ratio) can be altered so long …

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Understanding Fence Design: Key Considerations and Code Requirements

Fences – An Overview Fences serve multiple purposes, from enhancing privacy and security to defining property boundaries and improving aesthetics. However, a well-designed fence isn’t just about appearance, it must also comply with building codes to ensure safety, durability, and structural integrity. This article explores common fence designs and the key regulations that apply to …

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Guide To Mechanical Unit Permits and Engineering Requirements In Florida

Mechanical Equipment Design – A National Requirement Generally speaking, building codes are national in nature, but are adopted locally for unique geographic conditions. While national codes require designing code-compliant structures during design events, areas such as South Florida take the lead on high-wind requirements  for rooftop mechanical units & serve as a guide for design …

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The Ultimate Guide To Creating A Window – Door Retrofit Permit Package In South Florida

How To Apply For A Retrofit Window-Door-Garage Door Permit In South Florida Dade, Broward & Palm Beach Counties have adopted a unique set of rules for permitting window and door replacements (alteration level 1). While there are variations between cities, counties, & states, these requirements are similar.  Alteration Level 1 Defined: FBC/IBC existing building Section …

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How To Calculate Porosity of a Louver – Sign – Fence Per ASCE 7

Porosity – How ‘Open’ A Surface Is – Explained The porosity of open structures is defined in ASCE-7 standard under ‘open signs’ (chapter 29, as of ASCE 7-22). This standard explains that the permeable (wind) porosity of a surface isn’t always equivalent to the calculated visual porosity. Left: mechanically articulating louvers that can reach a …

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What’s A Miami Dade Renewal Process?

What’s A Miami Dade Renewal Process? A Miami-Dade Notice of Acceptance (NOA) is valid for five years from its issuance date. To keep the approval active, manufacturers must submit a renewal application before expiration, extending the NOA for another five-year term. Qualified engineering firms—such as Engineering Express—can prepare and file this renewal on behalf of …

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Miami NOA QA Expiration Date Example 1

Whats the difference between the Miami Dade NOA Quality Assurance Date and the Building Code Expiration Date?

Learn How To Quickly Spot And Use QA Expiration & Code Dates On a Miami Dade NOA Why This Is So Important Miami Dade Lists an ‘Expiration Date’ on the cover page of their Miami Dade NOA’s, which is misunderstood and frequently misused. Many times the product being used is NOT Code compliant, even though …

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What’s the difference between ground and roof snow load for patio covers?

When designing outdoor structures like patio covers, one of the most critical factors to consider is the ability to support snow loads.  In regions that experience significant snowfall, the weight of snow can exert considerable pressure on a structure, making it essential to understand how snow accumulates and affects different parts of a building. Two …

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