![]() ![]() This situation does not represent a potential for foundation repair.ĭoor-C and Door-D will not latch and are low on the hinge side. This door was framed square on an unleveled floor. This represents a potential for foundation leveling.ĭoor-B fits and latches properly although the floor is not leveled. Also, the cracks are extended into the sheetrock (panel made up of gypsum). The continued growth of the crack or displacement of the door marks would be a strong indication of foundation movement.Įvaluation of doors for foundation movementĭoor-A will not latch and clearly does not properly fit frame, an example of differential movement. If any movement occurs, the marks will no longer form a line. A slight variation of this technique is to mark a straight line across a door and a matching door frame. If the crack changes even slightly, one or more of the marks will no longer match in a straight line along the crack, and the crack will extend past the apex mark. A simple check to determine if a crack is still growing is by marking at the apex of the existing crack and then making a horizontal and a vertical mark along the crack using a straight edge. ![]() On the other hand, for example, if a 0.3 cm wide crack is noticed, it could be a sign of impending problems. However, if the crack exceeds 0.6 cm in width, the problem is possibly structural. Often, this can be the result of thermal or moisture changes and not the foundation movement. Mostly, hard construction surfaces tend to crack. Any cracking should be evaluated based on both extent and cause. Inspect wall and ceiling surfaces for cracks or evidence of patching. Separation of chimney from outside wall 1.4 Check for Irregularities in Walls and Ceilings If the door rubs slightly at the top, shimming the hinge plate might provide alignment without altering the door. If it is smooth, the door may have been sanded or shaved. Also, feel the top of the door above the doorknob.A discrepancy suggests that the door may have been shaved. Measure the length of the door at the doorknob side and the hinge side.Check to see if the strike plates have been adjusted to accommodate the strikers, relocation might indicate movement.Look if the doors are square in the frames or not. Check the plumb and square of the door and window frames.Check for evidence of prior repairs and adjustments such as shims behind hinges, latches or keepers relocated, tops of doors shaved. Inspect interior doors for proper fit and operation. ![]() If you are still uncertain regarding any of the points listed below, then you should consult a qualified geotechnical engineer. If the structural irregularities, mentioned below, are observed then the foundation of the structure is in need of repair. ![]() The following is a simple checklist of structural irregularities for evaluating the stability of a foundation. Checklist to Inspect the Foundation Stability Example to Check the Foundation Stabilityġ. 1.7 Check for Trees Planted near to the Foundation.1.6 Check for Drainage Adjacent to the Foundation.1.5 Check for the Exterior Surface of the Foundation.1.4 Check for Irregularities in Walls and Ceilings.Therefore, we have discussed the general signs of distress for foundation stability and ways to detect these signs of distress. This decision requires extensive experience and some degree of compromise. The main concern in all cases is to decide whether the degree of distress demands a foundation repair. Such activities commonly involve painting, patching, tuck-pointing, addition of trim, installation of wall cover, etc. It becomes difficult to detect the problems if the signs of distress are concealed through cosmetic attempts. The cause is the most important factor as repairs will be futile if the original cause of the distress is not recognized and eliminated. It becomes necessary to evaluate the occurrence of foundation-related problems and to determine the root cause of such problems. If you plan on buying an old house in a geographical area with a known propensity for differential foundation movements, then it is always wise to seek the advice of a qualified geotechnical engineer. ![]()
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