# Screed boards and Rebar **URL:** \ **Category:** Archive - Product Discussions #3\ **Created:** [August 27, 2008, 5:13pm UTC](https://forum.4specs.com/t/screed-boards-and-rebar/1105 "2008-08-27T17:13:42Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![robin](https://avatars.discourse-cdn.com/v4/letter/r/e5b9ba/32.png) [@robin](https://forum.4specs.com/u/robin)\ **Post date:** [August 27, 2008, 5:13pm UTC](https://forum.4specs.com/t/screed-boards-and-rebar/1105/1 "2008-08-27T17:13:42Z")
When a contractor sets up screed boards with rebar, which penetrates the vapor barrier, what happens when the rebar is pulled - leaving a hole in the vapor barrier? What are alternative methods for setting up screed boards to eliminate this issue? ---
**Author:** ![mchavez](https://avatars.discourse-cdn.com/v4/letter/m/bc79bd/32.png) [@mchavez](https://forum.4specs.com/u/mchavez)\ **Post date:** [August 27, 2008, 5:19pm UTC](https://forum.4specs.com/t/screed-boards-and-rebar/1105/2 "2008-08-27T17:19:58Z")
laser screeds or don’t worry about it. Those are just about your only choices - that I know of ---
**Author:** ![mchavez](https://avatars.discourse-cdn.com/v4/letter/m/bc79bd/32.png) [@mchavez](https://forum.4specs.com/u/mchavez)\ **Post date:** [August 27, 2008, 5:22pm UTC](https://forum.4specs.com/t/screed-boards-and-rebar/1105/3 "2008-08-27T17:22:01Z")
I forgot. A few contractors are placing little metal feet on the pegs that disengage once the concrete is poured thereby NOT puncturing the Vapor retarder and still allowing the use of regular screeds. little feet are often metal tube on small plate with a few tack welds ---
**Author:** ![specman](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.4specs.com/specman/32/222_2.png) [@specman](https://forum.4specs.com/u/specman)\ **Post date:** [August 27, 2008, 5:29pm UTC](https://forum.4specs.com/t/screed-boards-and-rebar/1105/4 "2008-08-27T17:29:47Z")
See the article posted on Stego’s website: [“Don’t Puncture the Vapor Retarder”](http://www.stegoindustries.com/docs/Don%27t%20Puncture%20the%20Vapor%20Retarder.pdf) ---
**Author:** ![rlmat](https://avatars.discourse-cdn.com/v4/letter/r/eb9ed0/32.png) [@rlmat](https://forum.4specs.com/u/rlmat)\ **Post date:** [August 27, 2008, 6:18pm UTC](https://forum.4specs.com/t/screed-boards-and-rebar/1105/5 "2008-08-27T18:18:12Z")
This is what I generally say in my specs: “Do not use screed stakes in areas where vapor retarder is installed. Use screed pads to hold screed posts. Do not pierce vapor retarder.” ---
**Author:** ![philip\_carpenter](https://avatars.discourse-cdn.com/v4/letter/p/e68b1a/32.png) [@philip\_carpenter](https://forum.4specs.com/u/philip_carpenter)\ **Post date:** [August 27, 2008, 11:40pm UTC](https://forum.4specs.com/t/screed-boards-and-rebar/1105/6 "2008-08-27T23:40:10Z")
does anyone have a link to a specific product for the screed pads that screed stakes would be attached to? seems like a non-metallic product would be better as a left-behind than the metal feet type. we have quite an issue with vapor up thru the slab here in the northwest and are always having to push the contractors to see the issue ---
**Author:** ![Rliebing](https://avatars.discourse-cdn.com/v4/letter/r/c57346/32.png) [@Rliebing](https://forum.4specs.com/u/Rliebing)\ **Post date:** [August 28, 2008, 12:34pm UTC](https://forum.4specs.com/t/screed-boards-and-rebar/1105/7 "2008-08-28T12:34:01Z")
Try “G-3” device from Dayton Superior; also dee Concrete Accessories and C&H Concrete Specialties for variations of what is shown in article Ron noted in the link. ---
**Author:** ![mark\_gilligan](https://avatars.discourse-cdn.com/v4/letter/m/f05b48/32.png) [@mark\_gilligan](https://forum.4specs.com/u/mark_gilligan)\ **Post date:** [August 29, 2008, 4:20am UTC](https://forum.4specs.com/t/screed-boards-and-rebar/1105/8 "2008-08-29T04:20:43Z")
My bias is to simply say that they cannot penetrate the vapor retarder. When you get into specific techniques you are unnecessarily getting into means and methods. Knowledge of these devices are useful if the contractor says he cannot comply with your requirements. ---
**Author:** ![rm\_beard\_ccs](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.4specs.com/rm_beard_ccs/32/80_2.png) [@rm\_beard\_ccs](https://forum.4specs.com/u/rm_beard_ccs)\ **Post date:** [September 2, 2008, 8:35pm UTC](https://forum.4specs.com/t/screed-boards-and-rebar/1105/9 "2008-09-02T20:35:01Z")
WR Grace has two Tech Letters that might be of interest: Rebar chairs [http://www.na.graceconstruction.com/custom/waterproofing/downloads/tech\_letters/WP-015.pdf](http://www.na.graceconstruction.com/custom/waterproofing/downloads/tech_letters/WP-015.pdf) Prep and Repairs [http://www.na.graceconstruction.com/custom/waterproofing/downloads/tech\_letters/WP-033.pdf](http://www.na.graceconstruction.com/custom/waterproofing/downloads/tech_letters/WP-033.pdf) It is interesting to note that for horizontal applications they recommend concrete or brick blocks, pavers, or dobies as rebar supports.