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Frequent masonry problems

Belly-Beef

CAUSES

A belly-beef can be caused by several factors:

  • excess moisture in the basement,
  • deterioration of the mortar and joints,
  • temperature change,
  • excess rust on anchors,
  • cracks, etc.

When you see that a brick or stone wall presents this kind of problem, it is better to act quickly.

CONSEQUENCES

The belly-beef designates a swelling on the outside of a brick wall. The deterioration of the brick, mortar and anchors leads to the removal of the brick wall from the wooden structure giving the wall a domed appearance. This problem can cause enormous damage, including the collapse of the brick wall.

SOLUTION

  • Long term: The most durable and effective solution is to completely dismantle the problem area over the entire width. The wall is then reassembled with new galvanized anchors and new mortar.
  • Short term: Support plates can be installed which will be screwed directly into the wooden structure. These will stop the progression of the belly-beef. It is a temporary preventive solution of approximately 1 year.

TO NOTE

It is sometimes recommended to redo the entire wall since it could have been weakened by the belly-beef. The repair of a complete wall also has the advantage of allowing the addition of insulation.

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Lexique

Allège: Pièce de ciment ou de pierre située au bas d’une fenêtre ou d’un vitrage.

Acier galvanisé: Acier recouvert d’une couche de zinc dans le but de le protéger contre la corrosion.

Chantepleure: Fente verticale pratiquée dans un mur pour l’écoulement des eaux et la ventilation de l’arrière du mur.

Crépi: Enduit de plâtre ou de mortier, non lissé, dont on revêt un mur ou une fondation.

Fer angle: Profilé en métal dont la section forme un L situé au haut d’une fenêtre ou d’un vitrage servant à supporter la charge de maçonnerie supérieure.

Joints: Espace entre les briques ou les pierres lié par du mortier.

Larmier: Rainure située sous une allège ou un chapeau de cheminée, qui a pour fonction d’éloigner l’eau de la surface du mur.

Linteau: Pièce de ciment,de pierre ou d’acier située au haut d’une fenêtre ou d’un vitrage servant à supporter la charge de maçonnerie supérieure.

Calfeutrant: Scellant pour les portes, fenêtres et tout autre revêtement.

Lexicon

Sill: Piece of cement or stone located at the bottom of a window or glazing.

Galvanized steel: Steel coated with a layer of zinc to protect it from corrosion.

Weeping: Vertical slit in a wall for drainage and ventilation of the back of the wall.

Plaster: Plaster or mortar plaster, not smoothed, with which one covers a wall or a foundation.

Angle iron: Metal profile with an L-shaped section located at the top of a window or glazing used to support the load of upper masonry.

Joints: Space between bricks or stones linked by mortar.

Drip edge: Groove located under a sill or a chimney cap, which has the function of moving water away from the wall surface.

Lintel: Piece of cement, stone or steel located at the top of a window or glazing used to support the load of upper masonry.

Caulking: Sealant for doors, windows and any other coating.