A Comparison-  Showhome’s  Visit-able No-Step Entrance and  a Traditional Homes’ Step-Up Entrance
Visit-able No-Step Entrance was Created  by Thickening,  Heightening and Recessing the Foundation
Foundation and Floor Framing  for  a Traditional Step–Up Entrance (left) and Showhomes’ Visit-able No-Step Entrance (right...
Detailed Comparison – Visit-able No-Step Entrance and  Traditional Step-Up Entrance
Detail  and Cost of Executing  Showhome’s No-Step Visit-able Entrance <ul><li>Traditional Step-up </li></ul><ul><li>Feasib...
Conclusions <ul><li>A visit-able no-step entrance is part of a holistic system design process </li></ul><ul><li>Designing ...
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Winchester UD Show Home

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Ever wonder why if universal design is just good design most builders don't do it? The simple answer is cost. A key component of universal design is having a zero-step entry into the home. Unfortunately, making it happen generally requires more excavation and concrete work, which gets pricey. See a side-by-side comparison of a zero-step entry and a traditional step-up entry.

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Winchester UD Show Home

  1. 1. A Comparison- Showhome’s Visit-able No-Step Entrance and a Traditional Homes’ Step-Up Entrance
  2. 2. Visit-able No-Step Entrance was Created by Thickening, Heightening and Recessing the Foundation
  3. 3. Foundation and Floor Framing for a Traditional Step–Up Entrance (left) and Showhomes’ Visit-able No-Step Entrance (right) 8&quot; 12&quot;
  4. 4. Detailed Comparison – Visit-able No-Step Entrance and Traditional Step-Up Entrance
  5. 5. Detail and Cost of Executing Showhome’s No-Step Visit-able Entrance <ul><li>Traditional Step-up </li></ul><ul><li>Feasibility and Cost are not Nearly as Site and Lot Dependent </li></ul><ul><li>Normal Depth of Excavation </li></ul><ul><ul><li>Normal amount of excavation </li></ul></ul><ul><ul><li>Less likely to hit rock or as much rock </li></ul></ul><ul><ul><li>Less likely to hit high water tables </li></ul></ul><ul><ul><li>Less likely to require hung sewer and ejector pump for basement baths </li></ul></ul><ul><li>Normal Concrete Work </li></ul><ul><ul><li>8” thick concrete foundation wall </li></ul></ul><ul><ul><li>Normal height foundation wall and basement headroom </li></ul></ul><ul><ul><li>Forming single concrete ledge </li></ul></ul><ul><ul><li>Single row of foundation anchors </li></ul></ul><ul><ul><li>No special membrane flashing required </li></ul></ul><ul><ul><li>Normal allowable tolerances in concrete work </li></ul></ul><ul><li>Normal Sighting, Drainage and Grading </li></ul><ul><ul><li>Normal yard drainage </li></ul></ul><ul><ul><li>Normal tolerance above localized yard flooding </li></ul></ul><ul><ul><li>Normal tolerance and care in house sighting and grading </li></ul></ul><ul><ul><li>No increase in possible need for retaining walls </li></ul></ul><ul><ul><li>Normal Need for Weather/Durability Protection </li></ul></ul><ul><ul><li>Normal step- up and traditional door threshold heights do not make a porch roof or other weather resistive measures nearly as essential </li></ul></ul><ul><li>Normal Flexibility for In-Process Flooring Changes </li></ul><ul><ul><li>Normal height thresholds provide flexibility for in- process finished flooring changes </li></ul></ul><ul><li>Visitable No- step </li></ul><ul><li>Feasibility and Cost are Highly Site and Lot Dependent </li></ul><ul><li>$$$ Deeper Excavation </li></ul><ul><ul><li>Excavate more earth –rebalancing of lot & site cut and fill </li></ul></ul><ul><ul><li>Greater potential for encountering rock </li></ul></ul><ul><ul><li>Greater potential for hitting high water tables </li></ul></ul><ul><ul><li>Greater potential to have the basement slab elevation below sewer level in the street and require “hung sewer” and ejector pump for basement bath </li></ul></ul><ul><li>$$$ Extra Concrete Work </li></ul><ul><ul><li>12” thick concrete foundation wall </li></ul></ul><ul><ul><li>20” taller foundation wall or less headroom in basement or combination of the two. Taller wall requires additional reinforcing bar </li></ul></ul><ul><ul><li>Forming of two concrete ledges </li></ul></ul><ul><ul><li>Two rows of foundation anchors </li></ul></ul><ul><ul><li>Special membrane flashing to help protect recessed framing from decay or insect damage </li></ul></ul><ul><ul><li>Reduced allowable tolerances in concrete work </li></ul></ul><ul><li>$$ Special Sighting, Grading and Drainage </li></ul><ul><ul><li>Drainage boxes and buried downspout extensions </li></ul></ul><ul><ul><li>Reduced tolerance above localized yard flooding </li></ul></ul><ul><ul><li>Reduced tolerance-extra care required in house sighting and grading </li></ul></ul><ul><ul><li>Increase possible need for retaining walls </li></ul></ul><ul><li>Extra Need for Weather/Durability Protection </li></ul><ul><ul><li>Increase susceptibility to weather infiltration at threshold because of no step-entrance and low threshold. Requires a porch roof or other weather resistive measures to help ensure long term durability </li></ul></ul><ul><li>Limited Flexibility for In-Process Flooring Changes </li></ul><ul><ul><li>Low accessible threshold provide little tolerance for finished flooring changes </li></ul></ul>Additional Dollar Cost Impact Code: $ > $500.00 < $1,000.00, $$ 1,000.00 < $5,000.00, $$$ > $5,000.00
  6. 6. Conclusions <ul><li>A visit-able no-step entrance is part of a holistic system design process </li></ul><ul><li>Designing and building a visit-able no-step entrance is highly situational dependent, and requires significant flexibility for homebuyers, design professionals and builders to execute properly </li></ul><ul><li>The flexibility necessary to properly execute visit-ability is best provided for by voluntary visit-ability programs such as, Design for Life Montgomery </li></ul>

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