Tags: Glass

About Door Product Pressure Ratings and Water Infiltration

QUESTION: Why do certain door products rate a certain p.s.f like -60/+60 then lower ratings are shown throughout the product approval?   Usually, the higher door pressure performance are not taking the water testing & infiltration conditions into consideration.  A deeper search into the evaluation will likely reveal limitations of performance if water infiltration is …

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ASCE 7 Wall Zones Explained

ASCE 7-16 has expanded on the definition of component & cladding zones from previous ASCE 7 standards   Per ASCE 7-16, buildings are composed of 5 different zones, depending on the wind loading they are subjected to. Zones ‘4’ & ‘5’ relate to wall zones & are defined as follows: Zone 4: Any areas between …

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What are Limitations of Small & Large Missile Impact Designs?

We are frequently asked what are the limitations applied on Small Missile Impact and Large Missile Impact products. Engineering Express takes into consideration the following code limitations while preparing design charts for operable windows/glass doors and non-operable windows/glass doors:  Referencing Florida Building Code Seventh Edition, (2020) Chapter 2411.3.2.4.i & 1709.5.1.3.i for Operable Windows and Glass …

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Requirements of Substituting Glass Panels In Insulating Glass Systems

ASTM 1996-17 Regarding Glass Substitution Section A1.8 states: “A1.8.1.1 The impact resisting lite (monolithic or laminated) of an insulating glass unit shall be composed of the same glass type and treatment with equal thickness or thicknesses of glass, and thicker or equal interlayer of the same manufacturer and type as originally tested and approved. Section …

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Requirements of Substituting Insulated Glass Spacers in Glazed Products

ASTM 1996-17 Regarding Insulated Glass Spacers. This 2017 standard added section A1.9.2 stating tested air spacers making up the insulated laminated unit can be substituted with other spacers. “A1.9.2 If the conditions in A1.8.1.3 are met, a change in spacer type, shape, or dimension is allowed automatically.” Section A1.8 states: “A1.8.1.3 Substitutions for insulating glass …

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About ASTM E1996-17 Missile Levels

Overview As of the 2020 Florida Building Code & 2018 International Building Code, ASTM E1996-17 is the adopted reference standard.  The title is ‘Standard Specification for Performance of Exterior Windows, Curtain Walls, Doors, & Impact Protective Systems Impacted by Windborne Debris in Hurricanes’. (Exterior garage doors & rolling doors are covered by ANSI/DASMA 115 & …

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What are the requirements for using ASTM Missile Level E in Florida (2021 updated)?

In the 7th Edition Florida Building Code (2020), missile level E is valid in and outside of the HVHZ (Broward and Dade Counties) when it came to essential facilities.   You can find information in section FBC 1626.2.4 which is under the HVHZ (Dade & Broward Counties) but FBC section 449.4.2.5.1 refers to FBC sections …

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ASCE 7 Basic Wind Speed

Per definition by ASCE 7-16 & ASCE 7-10, Section 26.2 is defined as:   BASIC WIND SPEED (V): Three-second gust speed at 33ft above the ground in Exposure C (see Exposure Categories) as determined in accordance with ASCE 7-16 (10) Section 26.5.1. The wind shall be assumed to come from any horizontal direction. The basic …

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Is a large missile impact window or door automatically approved for small missile impact?

Overview Changes to the 2020 Florida Building Code for Porous Impact Protection Devices Porous Impact Protective Systems: ASTM E1996-12A brought a significant change to Porous Impact Protective Systems (PIPS). A Porous Impact Protective System is defined as “An assembly whose aggregate open area exceeds 10% of its projected surface area”. Prior to ASTM E1996-12A, any …

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CAD Drafting Guidelines for Engineering Express Plan Submissions

Engineering Express Drafting Shop Drawings – Tips & Tricks   We at Engineering Express pride ourselves with the quality of our work. The key for a nicely presented set of engineered drawings is consistency. In this article we explore several guidelines we follow when creating structural engineered shop drawings for our client or modifying drawings …

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Flood Engineering Glossary

FLOOD GLOSSARY The following is provided as a curated summary of terms taken from the referenced standards that appear in the article footing. SEE ALSO OUR GENERAL GLOSSARY OF TERMS NATIONAL FLOOD INSURANCE PROGRAM (NFIP) The Federal program, create by an act of Congress in 1968, that makes flood insurance available in communities that enact …

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Flood Resistant Design & Floodproofing of Buildings

An engineer’s walk through of the design requirements for flood resistant design of building components With Engineering Express’s early start with floodproofing designs for floor barriers and exterior glazing in projects across the US, we quickly became experts in this field.  We’ve witnessed and directed static and dynamic flood testing, sat on industry meetings, met …

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