Redgard Vs Kerdi Membrane

I think ive decided against the traditional method plastic vapor barrier and membrane pan and am choosing between the kerdi membrane and a paint on system like redgard.

Redgard vs kerdi membrane. Waterproofing is waterproofing if your product works then the thing you use it on doesnt matter. Whether or not you need a kerdi membrane is a factor of use. What did we do wrong. A shower head is so high the eschution would likely block any issues.

Fill the box with water and let sit forever. The person that did it fifteen years ago just tiled over the existing concrete floor so i was going to do a dry pack job on the floor and use a kerdi drain. Backerboard plus a waterproofing membrane like redgard is all that is needed for tub surrounds with thinset then tile. I followed instructions but somehow we must of missed a step because everything cracked and water would have poured right through.

Here i use it on normal sheetrock and wood. If it leaks you didnt apply it correctly the trick is to not have pinholes. Redguard vs schluter ditra although detra and redguard are fine products i personally was directed to a sheet applied crack isolation product called ecb membrane by nac products. I layed it over an existing slab with moisture and crack problems about a year ago and have not had 1 problem.

Kerdi on the floor and red guard on the walls question the floor is concrete and it is an existing shower that i will be tearing out. But since redgard is designed to enable thinset to bond to it and the kerdi fleece bonds with thinset it should work. Schluter yes dave it performs perfectly. Why does redguard fail.

For 3 weeks it soaked in water and remains water. If you do that there is no difference in the final product from kerdi noble redgard hydroban mer krete or any other type of membrane you use. Build yourself a square box out of hardibacker or similar. Visions of a second story leak on to a high dollar baby grand pianoas with anything you need to have confidence in yourself as an installer to follow the directions correctly and achieve the proper mil thickness in 3 4 coats.

The valves typically have a gasket behind them and if your tilework is decent will prevent any moisture from doing anything. Kerdi really offers very little advantage over hardiboard plus membrane. In normal residential use i wouldnt worry about it. I use it mostly on shower walls.

Paint the inside with redgard 2 coats per instructions.