Raked Mortar Joint Depth

Mortar is recessed approximately 1 2 inch from the face of stone. To repoint mortar joints the old mortar must first be removed generally to a depth of at least 15 mm but often much deeper more on this. The raked joint is another joint not recommended for exterior use because its ledge may allow water snow ice to sit on top of the brick.

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Due to the fact that the mortar sits back from the face of the brick there is less cover between the face of the mortar joint and the top of the brick unit where the cores exist.

Raked mortar joint depth.

A wheeled jointer is an effective tool for this. Step by step guide to repointing brickwork. Recessed pointing recessed joints are raked out to a consistent depth. 1 dry laid recessed or paper thin mortar joints.

In this case the mortar bed is raked out as described later and helical reinforcing bars are set into a grout bed in the joint. Mortar can be raked out or installed without pointing. The mortar is applied 2 to 5 mm deeper than the visible surface of the facade. Raked joint for this design mortar is raked out to a consistent depth.

To rake joints hold the board perpendicular to the bricks and move it back and forth first along the vertical joints and then the horizontal joints. This is an extra raked joint. Leave the same amount of the nail sticking out of the wood as the depth of the joint. The dry laid appearance can have nice shadow lines one way to install natural stone is to dry fit the pieces together and show no grout between the pieces.

To make your own raked joint tool drive a 6d box nail into a short 1x2 board so that it matches the depth of the existing joints. The raked profile can be left as roughened texture but it is better to compact the surface of the mortar to improve its resistance to rain penetration. Effect the emphasis is laid on the horizontal aspect of the facade especially in combination with full vertical head joints or even no vertical head joints at all. Amazon s choice for mortar rake 4 5 8 x 1 4 tuck point diamond glitter bit pin for wet or dry grinding and shaping of masonry stone concrete mortar joints inside corners and more 4 4 out of 5 stars 11.

This joint is formed in a similar fashion as the weathered joint except that the bottom edge instead of the top edge is recessed. This is the mortar rake. Mix mortar with water to the consistency of peanut butter. For this project we used a raked joint mortar profile.

Let the mortar set for. It is not water and weather resistant as it will allow water to collect on its bottom ledge. The repair is then repointed.

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