Can we just not be too negative towards different opinions?
I don't cast suspicious on people's motive, because if one has to dig down to that level, everyone of us all have our own.
You're a good blogger and obviously has a lot of field experience. Well respected, your advice will be here read and listened by the thousands, long after I am done and gone with this thread. A little update of the latest industry advance won't hurt. I hear your sentiment towards big shots like Holmes but there is no reason any average consumer like me, with proper education, can't expect superior service and practice.
回复 'dan' 的评论 : I am totally agree with you. I own a store sells all the reno material. The only time the customers don't want spend money on Redguard or Kerdi are the house flippers. It is not an option, It is a must.
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回复 '房崇' 的评论 :
The point is, no single common materials used in today's residential wet room application is total water proof. There are only "Systems", and one system of installing can be proved superior to another. If one decided to choose to follow one system then it needs to be complete. All together it makes a near water-proof. For the method of no membrance is used, a vapor barrier should be installed behind the cement board. Otherwise moisture will go inside eventually.
Check John Bridge's forum. That is consider the bible for do it right. Every episode of "Holmes on Homes" that has bathroom reno uses Kerdi. Cost? three hundreds bucks maybe.
You are fantastic DYI'er and have my respect and enjoyed your writings for many years. I wish I have the ability like you to actually do it. I just have my master bath totally demo'ed and ready to build it up and did a lot readings on this subject. I just feel this time a sound advice should be voiced, that's all.
牛友友, it's more and more a good practice these days to use a layer of membrance like Kerdi, RedGuard between cement boards and tiles...neither tiles and grouts are water proof. THIS IS TRUE! TIles are nonporous and they have a water absorption number.
For shower wall, either you use a vapor barrier behind the cement board or you can use a waterproofing system (like Kerdi), but you should not do both.
Sealers are manufactured to maintain the appearance of your tile and grout, and they’re not designed as a waterproofing agent.