VOBB spec sheet
Description of Product
VOBB's Building Blocks are dry-stacked, masonry blocks with grout
and steel reinforcing bar (rebar) every 1-ft. The masonry blocks are dry-stacked
without surface bonding mortar. Each VOBB block is molded with two grooves
at both ends (standard blocks) or on the sides (corner blocks) that hold
plastic X-shaped clips. These clips act to connect the VOBB blocks at
each course level. The ½-inch re-bar is placed in the cells within
the blocks. The ½-inch re-bar is inserted at least 1-foot into
the foundation on 4-foot spacing. The cells for stacks used for support
posts and lintels above doors and windows are then filled with grout.
No mortaring is intended between blocks on the face of the wall.
Door and window lintels will have all blocks with all cells filled with
grout and ½-inch re-bar on a vertical basis. In addition, lintels
will have ½-inch rebar on a horizontal basis installed in accordance
with VOBB's specifications as follows;
- For lintels 4 foot and less: one ½-inch re-bar
- For lintels greater than 4 foot and up to 7 feet: two ½-inch re-bar
- For lintels greater than 7 foot and up to 10 feet: three ½-inch re-bar
VOBB building block walls are connected to the roof with steel J-anchors.
J-anchors are used every 4-feet. It is recommended that the J-Anchors
be at least ½-inch in diameter.
All VOBB's are six-inch in height and width. VOBB are a "nominal" six (6), twelve (12) or eighteen (18) inches in length.
(This is mostly as per the Koffel Associates, Inc. of Maryland engineering report.)
(Although some people may do surface bonding, we recommend the grout fill.)
18-inch VOBB - standard with grooves only on the two ends
12-inch VOBB with grooves on four sides
6-inch
VOBB with grooves on two sides for corner-smooth side
top view of 6, 12 and 18 inch VOBB
side view of 6, 12 and 18-inch VOBB
Sample measurement test:
http://www.vobb.com/manufacturers/TX-Davids-Patio/Davids-Patio-measurement-test.pdf
An 18-inch "L" bolt to anchor the top plate to the VOBB block
The "L" bolt is put in the top VOBB blocks on as vertical basis
For the VOBB clip:
http://www.vobb.com/vobb-clip.htm
For rebar used in the foundation to attach the VOBB wall.
http://www.vobb.com/rebar.htm
