I have done a air quality test sampling and some result was really high whit ascospores 5600 per cubic meter but only in a basement , noticed water stain and humidity but no apparent mold on wall , i tough the reading was a little too much , could it be the sum pomp when activated that could false the result ?
The radon exhaust piping should be 4" diameter. Exhaust piping in the image was 4 inch diameter piping on the outside of the house. Piping exited the house at a 90 degree angle and traveled to a tee fitting where the exhaust fan was located. The exhaust piping traveled up the side of the two story house and above the roof.
I chose the Radon article for my essay. The EPA recommends radon testing for home buyers. It is recommended since this is the only way to find out the homes radon levels. The home should be fixed if the radon level I 4 picocuries per liter (pCi/L) or higher. During radon testing, it is very important to prevent device interference. Home sellers should test the home for radon levels and correct radon problems. Fixing radon levels can be a positive selling point.
Here is a photo of the simple radon test kit offered by Pro Lab. This kit is uncapped for 48 hours to gather a radon sample. The kit is then sent to the laboratory where it is placed on a machine for another 48 hours. This short of a test should not be considered sufficient to determine actual radon levels. A long-term test (6 months+) would be used for this purpose.
The radon gas system in the picture is on a single family residence with a basement. It is constructed with four inch PVC piping under basement slab and routed from under slab vertically up side of home. There is an electrical outlet installed with an electric fan for drawing air from under slab at least ten feet above. The system looks proper.
Inspecting a garage was about a garage collapsed under heavy snowfall. The collapse was due to improper installation of the roof trusses. The trusses had been field modified with several bottom chords cut out. Also, the trusses were not bearing on a suitable structure, but wer fastened to the wall with joist hangers and small wood screws. A recipe for disaster.
In the photo is depicted a Radon Mitigation system. The system consists of piping installed threw the Basement floor or crawl space sealing bearer. And using fan to create at negative pressure on the ground around the lower parts of the home and venting the Radon Gas out and above the roof. Most likely installed after. Radon testing showed the levels of radon was grater than 4 pCi/L. Before a system like these is installed a secant test should be taken to verify average Radon Levels. A Test of the Water supply should also betaken if supply is from a well. Follow up testing should be preformed to verify the system is mitigating the radon levels to exceptionable EPE levels ( less than 4 pCi/L).
Gutters and down spouts are a major part of keeping the foundation in good condition for years to come. Meany home come with Gutters and down spouts working to catch the water shading off a roof and funneling it away from the foundation. But down spouts ending to close to the foundation brings all that water collected in too one area where it has the tendency of saturating the ground and causing the earth to swell and put pressure on the foundation. Leading to Cracking and Moisture intrusion. InterNATCHI recommend extending water spouts to 5FT. or more from the foundation.
The image I have chosen is of a radon mitigation installation in a crawlspace with dirt floor. The installer, or the original building contractor has installed 6Mil minimum plastic sheeting and presumably has 3/4" stone under it. They have penetrated the sheeting with 3" PVC piping and installed a Tee under the sheeting.
For my library article I have chosen the one that is titled “Radon”. This article is written for a consumer and touches on the basics of Radon. It explains to the consumer about testing for and mitigation of radon gas from a structure.
Sometimes a radon mitigation specialist is able to run the vent along an exterior wall rather than through the home. This system vents above the roofline, and away from any windows. A specialist can determine where the best location is, what methods to use, and if multiple systems are needed.
I read the article: “OSB vs. Plywood” for this essay. OSB is made from heat-cured and glued strands of wood, whereas plywood is made from thin sheets of wood veneer that is pressed and glued. Those in favor of OSB site that it’s inexpensive, it’s considered a “green” product, it’s less likely to delaminate, it can be made into larger sheets, and other reasons. Those in favor of plywood list plywood giving off less formaldehyde, weighing less, less likely to swell, and produce quieter floors as some of the reasons.
I read the article on inspecting smoke alarms. It is surprising to see that statistics that indicate how many people die in fires that they could have been warned of. An inspector must check for both the presence and operability of smoke detectors as many of them have been disabled due to false alarms.
The image shows the best location for a radon test meter to be placed in this one floor plan house. This location has minimal air movement according the the location specs of this coarse, and with a plug available for powered meters, the results will be best accurately measured, giving the best test results for the clients safety and health.
This essay is over the image of air pressure and radon entry. The image shows clearly how radon can enter a home causing a health risk and the basics of air flow through a home from all sides including the soil and foundation also transferring the movement of radon gas and air pressure.
This is a photo of a crawl space under a manufactured home. There was a floating concrete slab and therefore no vapor barrier was installed. Radon testing was started with the sensor placed in a corner of the back room furthest from the front door.
I read the article about radon which was intended for consumers. I did not realize that less than 4 pCi/L was still posed a risk and implied that the levels should be reduced. They recommend that the testing is completed over a course of 90 days.
This is a radon testing device. There are many like it, but this is not mine. It is a part of my life. I must master this course in order to master my craft. Without his device, this course is useless. Without this course, I am useless. I must be true to myself. I must read this device straighter than other inspectors who are my competition. I will. My radon testing device and I must work together. We will. My radon testing device knows that what counts in detection is not duration of time, cost of testing or the method in which tested. We know that its readings are what count. We will read it.
It was interesting to learn about alpha decay. Before this course, I had no reference, aside from a chemistry class in high school, of atomic nuclei and their emittance. Having taken this course, I now know much more in-depth as to those particles.
During inspection of home found radon mitigation system installed. The vent pipe for system is located on the right rear of the home. The vent pipe is taller than ten feet above the ground. Vent pipe is bracketed and secure in place.
