#STEM WALL FOUNDATION WITH BRICK VENEER INSTALL#
#STEM WALL FOUNDATION WITH BRICK VENEER CODE#
#STEM WALL FOUNDATION WITH BRICK VENEER CRACK#

I have personally investigated carpet getting wet and tile becoming unbonded from the floor due to leaks at perimeter walls caused by blowing or rain wetting the walls where the joint between the reinforced concrete foundation and first course of CMU had become unbonded, which often does occur. Yes, CMU is the exterior clading mostly single wythe. It seems architects also like to extend masonry(brick & CMU) below grade as they do not want the foundation exposed. Therefore, I am concerned with the wicking you noted & environmental problems noted in Thread. Usually the details I am referring to the below grade reinforced CMU Stem Wall extends up to grade and the exterior CMU wall extends from there (often single wythe) which I tried to cover in my last post. Rgerk Thanks for your reply.I did not intend for you to have to read between the lines. I posted a similar Thread and received no replies.

#STEM WALL FOUNDATION WITH BRICK VENEER CODE#

Known Code or Technical references would be helpful. Please provide your recommendations and thought on these two subjects, as I often feel I am the only one concerned about these two problems. Therefore, masonry/brick ledge should be installed, which is more accepted for brick than CMU.

#STEM WALL FOUNDATION WITH BRICK VENEER CRACK#

This joint often becomes unbonded from the foundation, losing the shear strength, and creating a crack which often causes water penetration in blowing rains. To me this does not seem to be good engineering practice and I would like to see waterproofing masonry below grade be addressed better by the Masonry Societies, due to the Environmental problems of algae, mildew, mold, staining, and efflorescence.Īnother problem I do not see addressed is CMU Walls being placed at Floor Grade without Masonry/Brick Ledges. The Brick Industry Association in their Technical Notes 28B – Brick Veneer does state, “If the soil immediately adjacent to the brickwork is not free-draining the brick wythe exterior should be waterproofed below grade.” However I have found nothing in the National Concrete Masonry TEKs concerning this and their details use CMU extensively below grade without waterproofing. Architects & Structural Engineers, often detail CMU/Brick being used below grade, without being waterproofed.(not talking about basements) This is especially disturbing when CMU stem walls are supported on spread footings extending to finish floor grade, when reinforced concrete would seem a better choice. Sometimes flared brick ledge section is constructed, and it shall be reinforced with a line of horizontal rebar, and stirrups.I review Structural Drawings for a design/construction firm. Cure concrete till it gains enough strength.Smooth the concrete with a concrete trowel.This would eliminate any air pockets and settle the gravel. Compact the poured concrete by tapping the side of the formwork with a hammer.Pour concrete into the brick ledge formwork.

#STEM WALL FOUNDATION WITH BRICK VENEER INSTALL#

Install reinforcement as per the design values.

Fix the formwork and brace the sides with stakes driven in the ground every 1.22m along the outside of the formwork.

Place grade at the bottom of the trench and level it properly.

Common trench depth of 15.24cm and width of 30.48cm is used.

Excavating trench beside the foundation or concrete slab.

If the bridge ledge is constructed separately, then the construction procedure includes: After that, the designated reinforcement is installed, and finally, the concrete is poured integrally with the foundation of the structure. In this case, the formwork is fixed along with that of the foundation element.

Brick ledge is usually constructed integrally with the foundation of the house or building.

Stem wall foundation with brick veneer