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  #811  
Old 1/16/17, 11:57 PM
Daniel Murphy Daniel Murphy is offline
Certified Professional Inspector (CPI) ®
 
Join Date: Jan 2014
Posts: 10
Default Re: Advanced Radon Measurement Service Provider Course

I read the article regarding radon under the library tab. I found interesting that new construction can use radon resistant construction methods to help mitigate potential radon levels in the home with a cost of only $300-$500. In fact in Illinois it is now required for all new construction. Seems given the potential dangers of radon in homes, this is a reasonable additional cost for new construction.
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  #812  
Old 1/18/17, 6:07 PM
Moranda Evans Moranda Evans is offline
InterNACHI Staff
 
Join Date: May 2016
Posts: 566
Default Re: Advanced Radon Measurement Service Provider Course

A new hi-resolution illustration has been recently added to InterNACHI's free, online Advanced Radon Measurement Service Provider course in the Radon Entry section. For more illustrations related to radon measurement, visit our free, online Gallery for inspectors.

Advanced Radon Measurement Service Provider Course-radon-entry-house-jpg
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  #813  
Old 1/19/17, 3:04 AM
Philip C. Igwe Philip C. Igwe is offline
Student Inspector
 
Join Date: Jun 2016
Posts: 62
Default Re: Advanced Radon Measurement Service Provider Course

There was a sewer vent pipe noted during the inspection of a residential building. This vent pipe can serve as source of radon gas entrance into the building. It is recommended that this vent pipe be sealed
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Advanced Radon Measurement Service Provider Course-advanced-radon-jpg  
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  #814  
Old 1/19/17, 3:07 AM
Philip C. Igwe Philip C. Igwe is offline
Student Inspector
 
Join Date: Jun 2016
Posts: 62
Default Re: Advanced Radon Measurement Service Provider Course

Research Work

There are several ways to reduce the levels of radon in a home Alberta Canada:

(a) Installing a radon reduction system, sealing cracks around foundation walls, floors pipes and drains or increasing ventilation.

(b) In 2010, national building codes were added for the protection against radon entry. New homeowners should ensure that builders are following these codes.
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  #815  
Old 1/19/17, 10:24 PM
Daniel Jenkins, MCP Daniel Jenkins, MCP is offline
Certified Professional Inspector (CPI)
 
Join Date: Dec 2016
Posts: 26
Default Re: Advanced Radon Measurement Service Provider Course

Subfloor preparation
A uniform four-inch layer of clean aggregate should be installed below all floor systems that are within the walls of the living spaces of a home. A 6-mil polyethylene sheeting (or similar soil-gas retarder) is then required between the gravel base and slab, or over just the stone in the case where a slab is not cast, in new construction by most all jurisdictions. Most codes also require that any additional potential radon entry points also be closed, such as: floor openings, concrete joints, condensate drains, sumps, foundation walls, damproofing, ducts, access doors and AHU’s in crawl spaces.
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Advanced Radon Measurement Service Provider Course-slab-prep-jpg  
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  #816  
Old 1/19/17, 10:27 PM
Daniel Jenkins, MCP Daniel Jenkins, MCP is offline
Certified Professional Inspector (CPI)
 
Join Date: Dec 2016
Posts: 26
Default Re: Advanced Radon Measurement Service Provider Course

https://www.nachi.org/gallery/indoor...don-system.jpg
Subfloor preparation
A uniform four-inch layer of clean aggregate should be installed below all floor systems that are within the walls of the living spaces of a home. A 6-mil polyethylene sheeting (or similar soil-gas retarder) is then required between the gravel base and slab, or over just the stone in the case where a slab is not cast, in new construction by most all jurisdictions. Most codes also require that any additional potential radon entry points also be closed, such as: floor openings, concrete joints, condensate drains, sumps, foundation walls, damproofing, ducts, access doors and AHU’s in crawl spaces.
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  #817  
Old 1/20/17, 11:21 PM
Clint S. Stockfleth Clint S. Stockfleth is offline
Certified Professional Inspector (CPI)
 
Join Date: Aug 2016
Posts: 35
Default Re: Advanced Radon Measurement Service Provider Course

Here is a picture of a sub-membrane depressurization system that is no longer secured to the interior wall of the foundation. The proper way of attaching the 6-mil membrane would be using pressure treated lumber that is attached to the foundation wall a minimum 12 inches above ground and sealed to provide an air tight seal. When I was inspecting this home, I noticed there were no signs stating Radon Mitigation System.
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Advanced Radon Measurement Service Provider Course-gedc1215-jpg  
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  #818  
Old 1/22/17, 11:37 PM
Gary LaVigne Gary LaVigne is offline
Certified Professional Inspector (CPI)
 
Join Date: Jun 2016
Posts: 54
Default Re: Advanced Radon Measurement Service Provider Course

This is the inspection of a two-story home, with a full unfinished basement. The photo is of the sub pump well, including a submerged pump, and discharge pipe 3” PVC. The pump system was correctly installed and functioned properly. Not pictured is the hard plastic well cover, which I removed for inspection.

Advanced Radon Measurement Service Provider Course-img_6125-jpg
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  #819  
Old 1/23/17, 12:07 AM
Gary LaVigne Gary LaVigne is offline
Certified Professional Inspector (CPI)
 
Join Date: Jun 2016
Posts: 54
Default Re: Advanced Radon Measurement Service Provider Course

PVC Health Hazards

PVC is widely used by builders in building materials because of its durability, and being inexpensive. The down side with its use is that it can pose serious health hazards. One hazard is its flame resistance. PVC can smolder unnoticed and release extremely dangerous gasses that present both acute and chronic health hazards to the buildings occupants.
It is critical that installation of PVC for various uses not to be near any system which produces high heat which could cause the PVC to smolder, releasing dangerous gasses.
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  #820  
Old 1/23/17, 2:32 AM
Mark A. Wasie Mark A. Wasie is offline
InterNACHI Member
 
Join Date: Jan 2017
Posts: 48
Default Re: Advanced Radon Measurement Service Provider Course

During inspection of this home. There is water penetrating the block walls. If the water is penetrating there is a good chance radon will. During waterproofing of the walls and sealing any other cracks they should consider a radon test.

Advanced Radon Measurement Service Provider Course-dscn0102-jpg
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  #821  
Old 1/23/17, 2:38 AM
Mark A. Wasie Mark A. Wasie is offline
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Join Date: Jan 2017
Posts: 48
Default Re: Advanced Radon Measurement Service Provider Course

From the library Radon: It was a very extensive article. It dealt with the health problem of lung cancer. When and why testing should be done. Who should do testing and time frames.
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  #822  
Old 1/23/17, 11:31 AM
Matthew Bugbee, CPI Matthew Bugbee, CPI is offline
Certified Professional Inspector (CPI)
 
Join Date: Jan 2017
Posts: 14
Default Re: Advanced Radon Measurement Service Provider Course

This was a crawl space that I inspected. The vapor barrier was not installed properly and was torn in several places. This may allow increased soil gas to come into the home.
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Advanced Radon Measurement Service Provider Course-sta71319-jpg  
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  #823  
Old 1/23/17, 11:40 AM
Matthew Bugbee, CPI Matthew Bugbee, CPI is offline
Certified Professional Inspector (CPI)
 
Join Date: Jan 2017
Posts: 14
Default Re: Advanced Radon Measurement Service Provider Course

I read the article about Radon from the library. It's targeted to consumers and does a great job highlighting the dangers associated with this gas. It is something that more people should know about to raise awareness when it comes to when to test and who should be conducting the test.
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  #824  
Old 1/23/17, 11:36 PM
Andrew Holter Andrew Holter is offline
Certified Professional Inspector (CPI)
 
Join Date: Jul 2016
Posts: 7
Default Re: Advanced Radon Measurement Service Provider Course

Sub-floor installation. Evaluating exterior piping and vent. The discharge of the vent is in relative close proximity to the window. It is more than two vertical feet from the window opening in the window so the placement is okay in that regard. Being an area where snow is common the home owner was advised that to ensure snow/ice does not block the vent pipe.
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Advanced Radon Measurement Service Provider Course-radon-jpg  
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  #825  
Old 1/23/17, 11:41 PM
Andrew Holter Andrew Holter is offline
Certified Professional Inspector (CPI)
 
Join Date: Jul 2016
Posts: 7
Default Re: Advanced Radon Measurement Service Provider Course

Radon Essay:

I live in a state where radon is very common. Pennsylvania. Nearly 1 in 2 houses comes back with elevated radon levels during testing. Radon causes 21,000 lung cancer related deaths in the United States every year. What's interesting about this is very few people know what radon even is or where it comes from. The National Fire Protection Association, a standard development agency has set out to increase fire safety and protect people and property from the dangers of fire. Home fires kill about 3,500 annually in the United States, more than all natural disasters combined. Radon kills more than 6 times that amount every year. It is surprising that more isn't done to increase awareness around this hazard.

Andrew Holter
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