EIFSFACTS.ORG
The Real Facts About EIFS
- Can You Believe This? -
From Dryvit's Website:
FUNCTION:
Minimize maintenance by reducing the potential for snow accumulation and precluding the puddling of water.
GUIDELINES:
Although Dryvit details and specifications state that the slope of inclined surfaces shall not be less than 6:12, a lesser slope will still allow water to drain from the surface (current Dryvit Residential MD details show a 3:12 slope at a window sill). The system is not damaged when it gets wetted out occasionally; but, when wet, it is susceptible to freeze-thaw damage in areas where these conditions prevail.
Geographic location and climatic conditions will influence anticipated performance. Residential trim protruding horizontally one inch or less without slope is acceptable if no damage has occurred.
- Editor's Note: In other words, driving a car without brakes is acceptable if no accidents have occurred.-
Check out this statement by Sto:
"Water must be prevented from getting behind the system from other sources. Face-sealed EIF Systems make limited provision to allow intruding water from these sources to escape, because incidental water can escape as water vapor without causing damage."
Home Building Basics and Exterior Insulation and Finish Systems, Sto Web Site, Sto Corporation, April 1999