Federation Tuckpointing provided a very professional and well-organised service. Their communication in the lead-up to the job was excellent, describing exactly what would be done and what would be needed from us. The repointing work was efficient and tidy and looks great. Very happy with the results.
REPOINTING MORTAR JOINTS IN HISTORIC MASONRY BUILDINGS. Source: National Park Service Preservation Brief #2; Author: Mack, Robert C. Summary: A detailed overview of how to repoint mortar joints. This article is a great introduction to repointing historic masonry. Web link
Good repointing practices guarantee the long life of the mortar joint, the wall, and the historic structure. Although careful maintenance will help preserve the freshly repointed mortar joints, it is important to remember that mortar joints are intended to be sacrificial and will probably require repointing some time in the future.
Nov 04, 2011 · One of those areas is the repointing mortar in 1/4″ layers -or lifts, usually three separate lifts in a mortar joint that has been cut out to an inch in overall depth. According to the Preservation Brief 2, “Repointing Mortar Joints in Historic Masonry Buildings”,1998 pp.10-11 states:
condition using the salvaged bricks, and follow the recommendations of Preservation Briefs #2: Repointing Mortar Joints in Historic Brick Buildings, the DHPA staff has no concerns or recommendations regarding the scope of work as currently proposed.
on this subject that discusses identifying the problem, various joint types and bondings, materials, and a bibliography for additional reading. Ask for "Preservation Brief No. 2 – Repointing Mortar Joints in Historic Brick Buildings" available here at the department or by clicking here.
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For masonry repairs, appropriate preservation approaches are essential. For example, if repointing deteriorated brick chimneys or walls is necessary to prevent serious moisture penetration while the building is mothballed, the mortar should match the historic mortar in composition, color, and tooling.
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Masonry repair and repointing on up to 50% of a building on the condition that it follows the guidelines in Preservation Brief 2. Replacement of non-original windows that were installed in the 1960s or later with windows that either match the configuration and proportions of historic windows, the current configuration, or have one-over-one sash.
profile of the mortar joints also contribute to the appearance of a historical structure. Repointing is the process of removing the outer deteriorated layer of mortar from the joints and replacing it with new mortar. Repointing deteriorated mortar joints, however, is more complicated than it may seem. If done incorrectly, it
See all full list on nps.gov
Keep in mind this is a vast generalization, as building materials and climates differ. For more detailed information about selecting mortar for use on historic buildings, check out the National Park Service’s Preservation Brief 2: Repointing Mortar Joints in Historic Masonry Buildings.
Repointing, also known simply as "pointing" or--somewhat inaccurately--"tuck pointing," is the process of removing deteriorated mortar from the joints of a masonry wall and replacing it with new mortar. Properly done, repointing restores the visual and physical integrity of the masonry.
Test Panels: Preliminary test panels establish a benchmark for subsequent repointing work. Joint Preparation: Old mortar is removed to a depth of at least 2-1/2 times the width of the joint to ensure a high-strength bond. Mortar is removed cleanly from all masonry units, leaving square corners at the back of all cuts.
Materials Specifications should conform to those contained in Preservation Briefs 2: Repointing Mortar Joints in Historic Masonry Buildings, and are as follows: Lime should conform to ASTM C207, Type S, Hydrated Lime for Masonry Purposes. Sand should conform to ASTM C144 to assure proper gradation ...
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ASTM E2260 Guide for Repointing Historic Masonry NPS Preservation Brief #2 Repointing Mortar Joints in Historic Masonry Buildings 3.5-gallon plastic pail (48lbs. material weight) 0.33 cubic feet of material See USHG Installer Guide to Products and Services for …
Preservation Brief 2: Repointing Mortar Joints in Historic Masonry ... Masonry—brick, stone, terra-cotta, and concrete block—is found on nearly .... whereby a sample of the mortar is crushed and then mixed with a dilute acid. ..... Note that each type of work—brick repointing, stone repointing, or similar ....
Preservation Brief 21 was based on an article in Old House Restoration on repairing historic plaster, published by the University of Illinois at Urbana-Champaign, 1984. Kay D. Weeks, Preservation Assistance Division, Technical Preservation Services Branch, expanded the article and made substantial contributions to its development as a Brief.
2. BRICK REPOINTING. Refer to the Secretary of the Interior’s Standard’s for Rehabilitation and Preservation Brief 2: Repointing Mortar Joints in Historic Masonry Buildings for appropriate historic masonry repointingmethods and materials. Provide: a. Color photographs of building areas involved with specific areas marked where repointing is ...
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guidelines of Preservation Brief #2, “Repointing Mortar Joints in Historic Masonry Buildings”, published by the National Park Service. Clean mortar joints using hand tools such as a trowel, hand chisel, and hammer or a small pneumatic chisel; the use of power saws and grinders is not recommended because of the
Keep in mind this is a vast generalization, as building materials and climates differ. For more detailed information about selecting mortar for use on historic buildings, check out the National Park Service’s Preservation Brief 2: Repointing Mortar Joints in Historic Masonry Buildings.
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When repointing or replacement of the historic mortar is required, a Type N mortar (about one part cement, and one part lime to six parts of sand) is generally appropriate. When repointing any historic masonry, it is important to match both the character and color of the sand and color of the cement matrix in the historic mortar.
C. Mortar Repointing: Prepare 2 separate sample areas of approximately 3-feet high by 3-feet wide for each type of repointing required, one for demonstrating methods and quality of workmanship expected in removal of mortar from joints and the other for demonstrating quality of materials and workmanship expected in pointing mortar joints.
sure to use a mortar that has little to no Portland cement. A high concentration of Portland cement in mortar can cause damage to historic brick. For more information on repointing historic brick, check out #2 Preservation Brief: Repointing Mortar Joints in Historic Masonry Buildings made available by The National Park Service. 2.
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