How To Repair Separating Brick Wall
Brick Wall Damage Repair
Repair Approaches for Bulged, Cracked, Loose, Spalled Brick Walls
- Mail service a QUESTION or Comment most the difference betwixt a brick veneer wall & a structural brick wall & the significance of this difference when understanding cracks in brick buildings
InspectAPedia tolerates no conflicts of involvement. Nosotros have no relationship with advertisers, products, or services discussed at this website.
Brick wall repair:
Brick wall repair methods for structural brick walls & brick veneer walls vary depending on the type of damage that is beingness addressed. Reinforcement or even reconstruction are required in cases of severe structural damage or unsafe buildings while other types of brick wall repair such every bit re-pointing or cleft repair or lintel repair are ofttimes possible in-situ.
This commodity series explains types of damage to structural brick walls. We explicate how to recognize, diagnose, & evaluate move and cracks in brick walls and how to recognize brick wall bowing or bulging and cracking failures.
The article series includes identification of types of foundation cracks, crevice patterns, differences in the significant of cracks in brick structural walls or brick veneer walls and discusses cracks or movement equally evidence of building movement.
We besides provide an ARTICLE Alphabetize for this topic, or y'all can effort the page superlative or bottom SEARCH BOX every bit a quick way to detect data you need.
Methods of Repair of Brick Walls on Buildings
Article Serial Contents
- BRICK WALL REPAIR METHODS
- BRICK STRUCTURAL WALL REPAIRS
- BRICK VENEER WALL REPAIR METHODS including special repair connectors to secure a brick veneer
- BRICK VENEER WALL LEAKS in FLOOD Decumbent AREAS - dissever article
- BRICK VENEER WALL REPAIRS in FLOOD Prone AREAS - separate article
- BRICK WALL TUCKPOINTING & RE-POINTING
- BRICK WALL LEAK REPAIRS - divide commodity
In our photograph of an antiquarian building in Hudson, NY (at left) those iii "stars" shown in a higher place the three windows of the 2d floor are probably functioning as giant "washers" securing a forepart-to-back anchor that secures the front end wall of this structure against bulging or movement, maybe also securing the floor structure inside as you tin can see in the sketch at left.
[Click to enlarge any image]
This article describing repair approaches for damaged brick walls is a companion
to BRICK VENEER WALL Damage Assessment - that y'all should review if your brick veneer wall is cracked, leaning, falling, or broken
Note: The different Types of brick wall damage, notes on distinguishing betwixt brick structural & veneer walls, & brick wall damage cess: bulges, bowing, cracking, construction methods, support, spalling, effloresence, etc. are addressed offset
at BRICK FOUNDATIONS & WALLS - home
Repairs / Reinforcement of Structural Brick Walls: Connectors, Special Fasteners
The drawing at below left, from Carson Dunlop Associates, shows how a structural brick wall may be reinforced laterally using a steel tie rod.
For repair of deteriorated brick wall mortar joints
see TUCKPOINTING BRICK & RE-POINTING
For detection & evaluation of thermal cracking or expansion cracks in brick walls of whatever blazon
encounter BRICK WALL THERMAL EXPANSION CRACKS which includes brick veneers and types of veneer damage.
Structural Brick Wall Ties & Rods Secure Walls Against Bulge, Lean, Collapse
Above: This brick building, located in Wappingers Falls, New York, illustrates structural connectors fastened through the building's side walls.
To stabilize and secure structural brick walls confronting leaning and bulging outwards, mutual for centuries has been the addition of exterior plates fastened through a brick wall and continued either to the building'southward interior frame or to the opposite wall (by a steel rod or bar).
Partial Re-Constrution of Structural Brick Walls
When the owners wanted the roof raised to proceeds habitable space over the rear wing of their home, the author [DF] needed to re-build the brick gable end of this historic structure, the Seneca Howland house located in Pleasant Valley, New York.
When comeback or repair to an existing brick construction is limited in scope it can exist resonable and economical to re-build that wall department; had this wall re-construction project not been at the very tiptop of the construction we'd have needed to add temporary support for whatever overhead brick structure, and engineering advice may have been required.
Also run into SENECA HOWLAND HOUSE - links to various photos of this home as they appear at InspectApedia.com
Below: repairs to the brick walls at windows of this dwelling in Buoy Hill, Boston, are mutual in a neighborhood of brick structures built upon unstable soil or settling soils forth steep streets.
Beneath: extensive structural harm and repairs to a brick building in Brooklyn, New York confirm that at least for some valuable buildings these costly repairs were justified. One would non undertake these extensive repairs without first having diagnosed the cause of edifice settlement and damage and without besides having taken steps to stabilize the structure against further movement.
Re-Pointing or Tuckpointing Brick Walls
Brick walls that have lost mortar from the joints between bricks or brick courses may be repaired by re-pointing or "tuck pointing", a procedure that cleans and then replaces mortar that has been lost from joints.
Our photo of a tuck-pointed structural brick wall (left) shows past the colored mortar that the mason attempted to match the color of older mortar in the wall.
The repairs done at below right expect practiced.
Just a different constrict pointing repair chore (in the upper left portion of the photo where we are pointing to a damaged brick) has not fared besides, possibly due to a poor mortar choice and frost impairment.
Definition of Tuck Pointing:
Tuck pointing is the filling in with fresh mortar of cut-out or defective mortar joints; in masonry this refers to the filling of joints in old (or damaged) masonry with fresh mortar. - Masonry Blueprint Manual.
Tuck pointing, which may exist performed on both structural and veneer brick walls (as well every bit on other types of masonry) is performed for several reasons
- To stabilize the brick foundation or wall against movement. Our photograph (left shows astringent h2o and frost damage to the corner of a brick building, probably from roof spillage at the end of a gutter that was periodically chock-full.
To stabilize these bricks against farther motility and possibly more serious foundation damage, a stonemason would probably repair the corner using a combination of reconstruction of the nearly-loose (or missing) bricks, and tuck pointing the remaining open up mortar joints.
- To stop water entry
- For cosmetic reasons
Tips for Pointing, Tuck Pointing, or Re-Pointing Brick or other Masonry Walls
at left we evidence a bad brick wall repair, tuckpointed using a too-hard mortar mix for a loose brick mortar articulation repair that also is not matched in the slightest to the original wall's mortar articulation colour, texture, nor tooling. This expedient repair invites further frost damage to the wall as well as to the brick surface.
More photos of this wall are
at BRICK WALL FROST & WATER CRACKS, EFFLORESENCE, SPALLING and
too
at BRICK WALL LEAK REPAIRS
This wall was ultimately re-built over a substantial expanse damaged past water and frost.
And then what is "tuckpointing"?
Working with a long narrow trowel whose width and shape are chosen to lucifer the existing mortar joints, the mason first cleans the existing mortar joints of loose mortar and debris, then pushes fresh mortar into the open joints.
The mortar joint in the tuck pointed wall should tooled to lucifer the existing mortar joints, and whatsoever mortar that has spilled onto the brick faces themselves should be cleaned before the new joints take fully hardened.
When I [DF] have washed tuckpointing or re-pointing of brick walls I prepared (thanks to advice from Eddie Kondysar, a existent bricklayer) mortar of the proper color, texture, and hardness to closely-friction match the original building mortar.
Subsequently cleaning the very soft mortar from the bad brick joints I held my mud hawk against the wall surface at the bottom of the mortar joint and used the pointing trowel to push mortar into the joint, getting as little mortar as possible on the face of the bricks.
When the joint was filled to a proper depth I tooled the joint (apartment, concave, angled in at the height of the joint, or special tooled or lined) using a trowel that matched the profile of the original brickwork.
When the mortar was set if there was a mess of mortar on the brick faces I used a scrap of hydrochloric acid to clean the brick to leave a beautiful job.
Lookout out: working with muriatic acid is unsafe and can burn you lot or put out your eyes. Utilise advisable protective gear.
The about common errors we meet in brick wall tuckpointing include
- Use of the wrong mortar for tuck pointing brick wall repairs
- Mortar that is not matched closely in original color makes for a wall that is cosmetically unattractive. In our photograph of a tuck-pointed brick wall (Wappingers Falls, New York) shows the effects of using a too-white mortar to "repair" the gable end wall of this dwelling house.
- Mortar that is not properly matched in hardness can cause serious spalling harm to a brick wall, peculiarly in freezing climates. When the new mortar is as well hard and too waterproof in comparing with the surrounding brick, wet that penetrates the brick wall remains trapped behind the harder mortar.
In freezing weather the expanding force of ice pops off surfaces of the softer bricks, damaging the wall further.
- Using caulk or sealant where mortar should be applied: when you apply a caulk or sealant to a brick or standstone (and some other stone) surface nigh likely you'll find that weathering of the softer stone, brownstone, or sandstone surface will cause the edges of the sealant or caulk to open up and pull away from the building surface.
Come across CAULKS & SEALANTS, EXTERIOR simply use a properly-formulated mortar non caulk when re-pointing is needed on brick.
- Failure to adequately clean the brick faces after new mortar is installed, leaving a "smear" of mortar on the brick surfaces - a cosmetic defect
- Failure to make clean the brick joints earlier tuck pointing, resulting in short life for the tuckpointed "repair"
Methods of Repair of Brick Veneer Walls on Buildings
When a brick veneer wall's fasteners are found to be inadquate in original installation (by type, number, placement, or poor connexion to the building's structure), or when a brick veneer wall is loose but deemed salvageable, in that location are special retrofit connectors that can be installed to secure the veneer to the edifice. Typically the retrofit brick veneer connector is installed through holes drilled in the mortar joints, connected to the construction, and the pigsty repaired or sealed.
Shown here: the traditional and exquisitely-uncomplicated brick veneer wall tie: a corrugated galvanized steel strap that is nailed to the building's structural wall and bent outwards at a 90-degree bending to place the tie'south strap into successive mortar joints equally the veneer wall is built.
Metal wall ties such as the one shown have been used in the construction of load-bearing masonry walls in England and in North America since the 1850s.
These metal wall ties, used in brick and stone masonry wall construction served three purposes. All improvements and modifications to this very simple original wall tie must meet all of these objectives (and peradventure others).
- To provide a strong structural connection between the brick veneer and the struture - thus avoiding a precarious wall and its collapse
- To accomodate motility and differences in motility between the masonry or brick veneer and the construction to which information technology is attached; such movements occur due to changes in temperature and humdity in unlike building materials. If such movement is not accomodated the veneer wall will only break away from the structure to which it is attached.
- To transfer lateral loads betwixt the veneer wall and its supporting construction.
Also the flat corrugated metal wall tie shown here, the two most-common other unit ties used in masonry structure were a rectangular tie and a "Z" shaped necktie shown beneath.
Corrugated ties are typically used in low-ascension, residential veneer over wood frame construction and are not recommended for construction incorporating brick veneer over steel studs, masonry-backed cavity walls, multi-wythe walls or grouted masonry walls. (BIA 2003)
Repair of Brick Veneer Walls
Brick veneer walls that are not so loose, damaged, dangerous as to prohibit repair, can be secured to the structure using a variety of wall ties described here.
The brick veneer wall shown in our photos (below) was rebuilt afterward a partial collapse. Yous can see some of the original veneer bricks on the ground.
- Add fasteners for a brick veneer wall that is loose: Other loose brick veneer walls that are not bulged or badly damaged but are poorly supported on the building structure can sometimes be repaired using special fasteners (e.thou. Fero Engineered Masonry Connectors cited beneath) that mount through mortar joints and connect to the edifice structure backside.
- Brick veneer wall drainage repairs: a brick veneer wall that is not draining properly may be repairable by calculation drainage openings or clearing blocked bleed openings.
Encounter BRICK WALL DRAINAGE Weep HOLES
- Re-construction of all or office of the brick veneer wall: a brick veneer wall that is extensively damaged, bulged, loose and collapsing will probably need to be removed and rebuilt.
- Thermal expansion cracks in brick veneer walls: for detection & evaluation of thermal slap-up or expansion cracks in brick walls of both structural & veneer design, likewise
run across BRICK WALL THERMAL EXPANSION CRACKS which includes brick veneers and types of veneer harm.
Brick Wall Construction References, Repair Fasteners, Bolts, Wall Ties
Here we provide links to manufacture experts, inquiry on brick wall and brick veneer wall structure and repair products including restoration ties & connectors for masonry wall or veneer repairs,
- Ambrico, American Brick Company, (Produces EZ-Wall® Engineered Thin Brick Arrangement), 12901 Stephens Road, Warren MI 48089Tel: 866-663-6898, Website: http://www.ambrico.com/ Email: info@ambrico.com
- ARF, ''Flexural Force of Cavity Walls", ARF Project B870, Armour Enquiry Foundation, Chicago, Illinois, March 1963.
- Armour, "Investigation of Masonry Wall Ties", ARF Project B870-ii (Revised), Armour Inquiry Foundation, Chicago, Illinois, Dec 1962
- Avongard FOUNDATION Fissure MONITOR PROGRESS Chart [PDF] for structural cleft monitoring
- Brown, R.H. and Elling, R.E., ''Lateral Load Distribution in Cavity Walls", Proceedings of the Fifth International Brick Masonry Conference, Washington, D.C., October 1979.
- Bortz, S.A., "Investigation of Continuous Metal Ties equally a Replacement for Brick Ties in Masonry Walls", Summary Report ARF 6620, Armour Research Foundation, Chicago, Illinois, June 1960.
- Brick Development Clan, The Building Eye, 26 Store Street, London, WC1E 7BT, England, U.1000., Tel: 020 7323 7030, Website: http://www.brick.org.united kingdom of great britain and northern ireland Email: brick@brick.org.uk
- Brick Industry Clan, 1850 Centennial Park Drive, Suite 301, Reston, VA 20221 Phone: 703.620.0010 Fax: 703.620.3928. Website: http://world wide web.gobrick.com/
WALL TIES for BRICK MASONRY [PDF] (2003) Brick Industry Association 1850 Centennial Park Drive, Reston, Virginia 20221 | www.gobrick.com | 703-620-0010 - this BIA technical note includes a brief history of the use of wall ties or anchors and fastners in brick masonry construction and describes the role and use of wall ties.
Excerpt:The use of metallic ties in brick masonry dates back to loadbearing masonry walls in the 1850's. Historically, the size, spacing and type of ties accept been entirely empirical. Over time, ties of various sizes, configurations and adaptability take been adult for loadbearing masonry, crenel walls and brick veneer structure.
These ties are used to connect multiple wythes of masonry, oftentimes of different materials; anchor masonry veneer to bankroll systems other than masonry; and connect composite masonry walls. This Technical Notes addresses the selection, specification and installation of wall tie systems for use in brick masonry structure. Data and recommendations are included which address tie configuration, detailing, specifications, structural performance and corrosion resistance.
Thin BRICK VENEER CONSTRUCTION [PDF] (2014) op. cit.
- BRICK WALL Drain, FLASHING, VENT SOURCES - web commodity: retrofit or new brick veneer wall drain systems
- Canada Masonry Middle, 360 Superior Blvd., Mississauga ON Canada L5T 2N7. Tel: (905) 564-6622. Offers the CMCA Textbook of Canadian Masonry. Website: http://www.canadamasonrycentre.com/
- Eschenasy, Dan, P.E., FACADE CONDITIONS, Illustrated Glossary of Visual Symptoms [PDF] Mr. Eschenasy is chief structural engineer for the New York City Department of Buildings. This excellent glossary is among the nearly-complete catalogs of masorny building damage visual inspection clues that nosotros have found. Retrived 2022/10/11 original source: https://www1.nyc.gov/assets/buildings/images/content/misc/FacadePresentation.pdf
This is a presentation is described by its introduction:
This glossary is intended to be used just as an educational tool by those interested in visual inspections of facade conditions. The glossary does not include any guide equally to the affect of the various listed conditions on the public safe or buildings' structural stability. Lookout out: [Emphasis ours - Ed.] Such determination needs to be the outcome of the qualified inspector's professional consideration based on a specific examination of the façade where all visual symptoms are assessed based on their location, prevalence and in their human relationship to the façade system.
Such determination shall comply with all New York City Construction Code requirements and prescriptions. The visual symptoms listed in the Glossary refer to types of facades mutual in New York Metropolis high and mid rising buildings. The glossary is past no ways exhaustive, simply hopefully it describes about of the typical façade problems encountered in New York City.
Equally this manual refers to façade conditions only, the covering atmospheric condition are non included, simply one should note that their touch on on the proper operation of the facade can exist significant.
Following a visual inspection, the evaluation of a façade's status should take into account all of the visual distress symptoms, together with consideration of other building components every bit well equally with the edifice'southward structural, thermal insulation and HVAC systems and fire protection systems. In many cases the source of a façade defect cannot be established without probing.
While the glossary assembly causes to symptoms, the reader needs to exist enlightened that many other causes, or a combination thereof, can produce the types of distress presented. It remains the responsibility of the professional performing the inspection to provide the proper diagnosis. This glossary is the result of discussions with an ad-hoc round table of façade inspection professionals who contributed with some of the text, pictures and reviews.
Below: Bereft number of brick veneer wall ties led to the collapse of brick veneer walls equally described by FEMA in the document cited below.
The first brick veneer wall necktie illustration higher up notes that
What the FEMA document (below) does non detail is how long these improperly-synthetic brick veneer walls stood before the veneer plummet and what exact loading conditions precipitated the collapse: presumably wind loading, wind-blown rain, or other stresses that occurred either over time or every bit a single result. The document describes the wall ties at a business firm nether construction in Ocean Springs Mississippi observed after Hurricane Katrina.
Important was the FEMA inspectors' observation that the wall included only nine masoanry ties (the blue dots) while to comply with required standards 42 such ties (the + marks) would have been required. |
The second illustration of a domicile where a brick veneer wall collapsed is in the aforementioned document and was originally reported in the 2007 report FEMA 549 Hurricane Katrina cited just below.
- FEMA, EXTERIOR CLADDING COMPONENTS AND Best PRACTICES [PDF] U.South. FEMA, Federal Emergency Management Association, retrieved 2022/10/xi original source: https://www.fema.gov/media-library-information/20130726-1707-25045-0913/chapter9.pdf
Excerpt: Brick Veneer.
The electric current masonry code referenced in the IBC and IRC is ACI 530-08/ASCE 5- 08/TMS 402-08, 2008 Building Code Requirements for Masonry Structures. This code provides both prescriptive and performance-based requirements. Brick-veneer construction in residential applications tends to follow prescriptive requirements.
Brick veneer is addressed by the IRC with prescriptive minimum requirements for sizing and spacing of masonry ties. In high-wind areas (where more than 30 pounds per square pes of pressure is applied to the brick), each tie is not permitted to support more than 2 foursquare feet of wall area.
The ICC-600 provides design requirements that vary with blueprint wind speed. At greater speeds, ties are required to be designated as a percentage of the tributary surface area that would be used at lower wind speeds. Figures 9-10 and 9-11 illustrate how brick veneers failed during Hurricane Katrina, due to improper design and construction of the wall covering.
Appendix E of FEMA Hurricane Katrina Recovery Informational (Zipper of Brick Veneer in High-Wind Regions) provides recommended practices for brick-veneer zipper. This advisory was based upon observations from hurricanes Ivan and Katrina.
- FEMA, HURRICANE KATRINA in the GULF Coast (FEMA 549) [PDF] (July 2006) Mitigation Assessment Team Report, Edifice Performance Observations, Recommendations, and Technical Guidance, U.South. FEMA, op. cit., retrieved 2022/10/eleven original source: https://world wide web.fema.gov/media-library-data/20130726-1520-20490-4067/549_cvr_toc.pdf
Excerpt: The conclusions and recommendations of this Report are intended to provide decision-makers with information and technical guidance that tin can be used to reduce future hurricane damage.
- Fero Engineered Masonry Connectors & Accessories, FERO Corporation, 15305 - 117th Ave., Edmonton, Alberta T5M 3X4 Canada, Tel: (780) 455-5098. Website: http://www.canadamasonrycentre.com/
Fero produces Fastj-Fero shelf angle supports for brick veneers, brick veneer fasteners, concrete block backup CMU block shear connectors, steel stud backup connectors, rubble veneer fasteners, thin rock veneer connectors, wood stud fill-in connectors fo rpoured physical, and the FAST bracket.
- Helifix, TorkFix RETROFIT MECHANICAL ANCHOR REPAIR [PDF] Helifix, Division of Halfen USA Inc. 4965 Eisenhauer Rd, Suite 101 Windcrest, TX. 78218 Tel: 888-992-9989 E-mail: sales@helifix.comWebsite: https://www.helifix.com
In the U.K. Contact: Helix Fixings 102 Hillside Crescent, Cheshunt, Hertfordshire, EN8 8PJ 08082 813739 (great britain) 011 44 8082 813739(united states of america) sales@helixfixings.co.uk
TorkFix anchors can connect a masonry veneer to structural members of structural types including masonry (brick-to-brick/concrete block/cmu), wood and steel. These anchors canalso exist used to anchor veneer panels to structures.
Website excerpts:
TorkFix mechanical repair anchors are a well proven method of stabilizing masonry veneer walls which have become detached from the inner supporting structure due to wall tie failure or omission at the time of construction. Suitable for tying masonry veneers to inner wythes of brick, concrete block, wood or steel stud, TorkFix retrofit anchors provide structural stability and resist current of air pressure forces.Brick to Wood Installation of a TorkFix anchor:
one. Drill a 7/sixteen" hole through the outer wythe, either through the solid brick or mortar joint.
two. Screw the threaded cease of Setting Tool 1 onto the outer finish of the ballast, insert into the hole and screw the anchor into the forest stud to a minimum depth of xi/4".
3. Fit hexagon of Setting Tool two over the end nut and turn until the outer shell has expanded and is tight. Utilise the torque wrench to the cease of Setting Tool 2 (1/iv" square) to check the torque (36-54lbf-ins). Brand skilful the pigsty and seal the surface with colour-matched mastic or mortar.
iv. Fit Setting Tool 2 over the cease nut and turn until the outer shell has expanded and is tight (36-54lbf-ins). Fit the torque wrench to the end of Setting Tool 2 (1/4" square) and bank check the torque, as before. Make good the pigsty and seal the surface with colour-matched mastic or mortar. - Installation at present complete
Higher up: Hohmann & Barnard's SPIRA-LOK helical wall tie organization - a stainless steel wall necktie installed into a pre-drilled pilot hole using a hammer drill.
- Hohmann & Barnard, SPIRA-LOK HELICAL WALL TIE SYSTEM [PDF] Hohmann & Barnard, 12 Ashbridge Circle Woodbridge, Ontario L4L 3R5 Telephone: (905) 266-2277 Fax: (905) 266-2272 world wide web.blok-lok.com sales@blok-lok.com U.s.a.A: 1-800-561-3026 retrieved 2022/10/11, original source:
Hohmann & Barnard, Inc, produces a huge range of strucural ties and anchors, including many other products for masonry repair and restoration, rock anchors, rebar ositioners, [Fly Nut two-Seal™ Tie, wing nut veneer anchor seals air barriers], Offices in 8 U.Due south. cities, including H&B New York 30 Rasons Court, Hauppauge, NY 11788 (P) 631-234-0600, (F) 631-234-0683, Toll: 800-645-0616, Website: www.h-b.com
- KPFF, WSCPA, Blueprint GUIDE for STRUCTURAL BRICK VENEER [PDF] (2004) KPFF Consulting Engineers, fdor Western States Clay Products Clan, retrieved 2022/10/11 original source: https://www.interstatebrick.com/sites/default/files/library/design-guide-structural-brick-veneer-wscpa.pdf
- Masonry Pattern Manual, [Volume at Amazon] James E. Amrhein & Walter L. Dickey, Civil & Structural Engineers, Masonry Industry Advancement Committee, Masonry Found of America, ASIN B0006XMFZE
Watch out: this manual may include opinions and recommendations that are obsolete or fifty-fifty very dangerous. For example p. I-4 expresses the opinion that "buckling is not a serious condition in masonry ..." contrary to the straight experience of masonry experts who report cases of catastrophic building collapses. - Masonry Design for Engineers and Architects , G. Hatzinikolas, Y. Korany, Canadian Masonry (2005), ISBN-10: 0978006100, ISBN-13: 978-0978006105
- Masonry Structures: Behavior and Blueprint, [Book at Amazon] Robert G. Drysdale, Ahmid A. Hamid, Lawrie R. Baker, The Masonry Society; 2nd edition (1999), ISBN-10: 1929081014, ISBN-13: 978-1929081011
- Masonry, Engineered: Using the Canadian Lawmaking, [Volume at Amazon] J. I. Gainville, Cantext publications (1983), ASIN: B0007C37PG
- Masonry, Non-reinforced masonry design tables, [Book at Amazon] Hans J. Schultz, National Concrete Producers Association and the Canadian Masonry Contractors Association (1976), ASIN: B0007C2LQM
- Sanford Contracting, Inc., (produces thin masonry veneers and engineered brick panels), Sanford Contracting Inc., 1400 Iron Horse Industrial Park, North Billerica, Massachusetts 01862-1612, Tel: 978-663-0200 Spider web: http://www.sanfordcontracting.com/ Email: tsanford@SanfordContracting.com
- Tamlyn edifice products, Tom Tamlyn, President, 13623 Throughway Rd., Stafford TX 77477, Tel: 800-334-1676. Web: http://www.tamlyn.com
Above: Thor Helical's Wall Tie and Helical Crack Stitching Bar, excerpts from the company's documentation given below.
- Thor Helical USA, 340 Due west Passaic St. Rochelle Park, NJ 07662 Tel:(201) 880-8819 E-mail:amelia@thorhelicalusa.comTel: 001-201-880-8819Website: https://thorhelicalusa.com - documents beneath retrieved 2022/ten/xi from the visitor's website.
Thor Helical, provides a range of repair devices for masonry structure including strap ties, helical wall ties or pins, horizontal masonry reinforcing bars for crack stitching, and related products.
Thor STRAP TIES
[PDF] documentation, Retrofit wall ties and lateral restraints for masonry.Cartoon for THOR STRAP TIES [PDF]
...
Thor HELICAL WALL TIES [PDF] documentation, used to replace damaged, corroded, or missing wall ties in cavity brick walls. Retrofit wall ties and lateral restraints for masonry
Drawing for Thor HELICAL WALL TIES [PDF]...
Thor MASONRY REINFORCING BARS for Crack Stitching [PDF] documentation, Reinforcement bars and Grout for repair to stabilize croaky bricks, concrete blocks and other masonry structure.Cartoon for Thor Helical Scissure STITCHING BAR [PDF]
...
Cartoon for Thor GROUT TIES [PDF]
Excerpt from the company'southward website:
Wall Ties are hammer-driven into small airplane pilot holes the remedial ties corkscrew into brick, block and concrete to deliver a mechanical gear up that grips the wall on each side of the crenel.
Different conventional ties having expanding mechanisms, that delivers point-loading when tightened to the substrate, the threaded interlock connection of the self-tapping helical wall tie exerts no expansive stress into the brickwork and volition not loosen with vibration.
...
Go along reading at BRICK WALL LEAK REPAIRS or select a topic from the closely-related manufactures below, or see the consummate ARTICLE Index.
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