DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > General Home Improvement Discussion > Radon abatement plan

Help Support House Repair Talk by donating using the link above.
Thread Tools Search this Thread
Old 03-22-2008, 12:02 PM  
Junior Member
Join Date: Mar 2006
Location: Greencastle, PA
Posts: 25
Liked 2 Times on 2 Posts

Default Radon abatement plan

It's time to vent the crawl space and have done the appropriate info gathering from the governmental sites and have a couple of questions that I don't find addressed in those sites (which I can't believe since they seem like pretty basic requirements for this).

I am to lay what essentially amounts to 'crusher run' rock on the floor first (I have seen several numbers listed so there must be a veeeery loose standard for aggregate sizing).

1) Is three inches about right?
2) Can I place the perf'ed pipe right on top and then drape with 6 mil poly or would a shallow trench be appropriate (suggested by my mason).
3) The site says that I can use a spray adhesive or 'tape' on the poy joints.
I don't have much confidence in a gapless joint joint using the sprays. So, that said, what would be a good tape? Silver ducting tape and clear, non-stranded packing tape has been suggested. Opinions welcome.

That's about it! TIA, folks.

ironhat is offline  
Reply With Quote
Old 03-22-2008, 10:02 PM  
Junior Member
Join Date: Jul 2007
Location: Minneapolis MN, wi
Posts: 10

If you are covering a crawlspace for radon gas reduction you can skip the gravel and maybe the perforated pipe depending on the size of the space. We fasten 10mil cross weave poly to the foundation walls with power load nails through a strip of 1" wide 1/2" treated plywood. We then drape the excess poly over the plywood and use a urethane caulk to seal the top edge. For joining seams we over lap 6" and use urethane between the lap and duct tape the joint to hold everything in place until all is dry. If you are going to apply suction to the area a PVC tee is inserted through a cut in the plastic and attached to the vent pipe.

Hope this what you needed,
radonguy is offline  
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
DIY Radon Mitigation Help Fireguy5674 General Home Improvement Discussion 3 02-03-2015 10:43 AM
DIY Radon Reduction radonguy General Home Improvement Discussion 4 03-24-2010 07:17 AM
Questions about radon mitigation JohnBoy HVAC 2 07-01-2009 06:56 AM
Radon Abatement estapelfeldt Introductions 3 08-20-2008 01:26 PM
Radon Mitigation Joe_T Framing and Foundation 7 07-14-2007 07:50 PM

Newest Threads