Single Wythe Concrete Masonry Walls

F btu 1 23 m k w an estimate of the building envelope energy use for this structure is approximately 27 800 btu ft 87 7 kwh m as shown in figure 1.

Single wythe concrete masonry walls.

A wythe is a continuous vertical section of masonry one unit in thickness. Oncrete masonry units are not all cre ated equal. A simple way to picture single wythe is to think of a child building a wall of blocks. Single wythe walls unlike cavity walls and veneered walls require additional special attention regarding moisture penetration pre vention.

The following 3 items make up what is the industry standard for how to properly use concrete masonry for single wythe walls. A single wythe of brick that is not structural in nature is referred to as a veneer. In these applications an opaque elastomeric coating is used to form a weather barrier on the outside wall face. Blockflash is a complete embeddable flashing solution for managing moisture in exterior single wythe cmu walls.

If this school is built using single wythe concrete masonry walls with cell insulation only and a resulting wall r value of 7 hrft 2. Single wythe masonry is the method of creating a concrete structure that is only one layer thick. A multiple wythe masonry wall may be composed of a single type of masonry unit layered to increase its thickness and structural strength or different masonry. While many wall system variations may apply to single wythe cmu wall systems this chapter focuses on an interior insulated cmu wall system that has demonstrated successful building enclosure performance within colorado and southern wyoming.

Blockflash the complete flashing solution for single wythe concrete masonry unit walls over 3 million lineal feet of walls protected. It uses patented flashing pans to collect moisture. Designers in the pacific northwest have learned how to use single wythe concrete masonry walls effectively for shopping centers restaurants hotels schools fire and police stations. Regardless of a project s energy efficiency and sustainability design goals concrete masonry walls can help to meet these goals.

The chapter 7 wall systems consist of a single wythe concrete masonry unit cmu wall structure often composed of split face block. Specify and insist on con. Download product overview blockflash. However because they do not have a continuous drainage cavity as do cavity and veneered walls they require special attention to moisture.

Single wythe walls can be insulated as shown in figure 2. However because they do not have a continuous drainage cavity as do cavity and veneered walls they require special attention to moisture penetration. If we increase the r value of the wall to r14 by. In addition to the thermal mass benefits discussed in this article concrete masonry is a locally produced construction.

The child generally builds the wall with only a single vertical layer of blocks.