Seal the entire concrete wall with a waterproof masonry.
Should you seal board formed concrete walls.
However if you choose to use concrete backerboard which is much stronger and more durable than gypsum board a water vapor membrane must be placed underneath it or a sealant applied on top of it.
However some people also like to use cement board for exterior walls.
On the chance that they don t or if you want your board formed concrete to look as good as the image above i m going to tell you how we do it.
Five on forming and five on pouring.
Architects drool over it and clients love it but frankly board form concrete can be a little daunting for a concrete sub or a builder.
Board form concrete walls mix well with glass and metal in modern house designs such as this project risinger built with alterstudio architecture of austin texas.
It can also develop small pinhole openings that act as capillaries for water transmission.
When concrete walls gets placed or poured cast or set whatever there is formwork that gets built on site that holds the wet concrete in place until it has hardened.
One of the major advantages that you will get by using cement board for an exterior wall is durability.
Using cement board is common for floors or interior walls.
This unique finish is achieved when concrete is cast onto wood paneling or boards pre set into the mold.
This technique can also be used for upright concrete columns and walls by wetting them down and.
The temperature also needs to stay above 50 f during application and drying time up to three days.
If your concrete is new you ll need to let it cure wait at least one month before applying sealer.
The architecture of board formed concrete is an art form here are 10 tips that can help you do it right.
Here are a few things to consider about using cement board for exterior walls.
Remove the sheeting or blanket daily wet the concrete again re cover it and repeat for seven days.
Sealer needs to be applied in dry conditions because it won t adhere to damp concrete.