Restoring Mortar Joints in Historic Buildings Staten Island NY

In a properly designed and constructed masonry wall in Staten Island, mortar joints can last 50 years or more without maintenance. Eventually, though, natural weathering by wind and rain will cause the mortar to erode.

Uvs Construction
(718) 554-0426
Beach 74Th St
Arverne, NY

Data Provided by:
All-Dessa Construction LLC
(732) 972-5700
9 Eisenhower Circle
Morganville, NJ
 
Innovation Design and Construction of New York, inc.
(718) 982-6954
95 Goller Place
Staten Island, NY
 
DALY FENCE COMPANYS
(718) 967-2328
16 CRESCENT BEACH
STATEN ISLAND, NY
Services
fence company

Innovate Stones Marble & Granite
(908) 718-5616
720 E Elizabeth ave
Linden, NJ
Services
Countertops
Prices and/or Promotions
Free Sink With order over 35sqft

Just Real Construction
(646) 319-3470
1349 East 38th street
Brooklyn, NY
 
RT Floors
(718) 983-6341
25 Leigh Avenue
Staten Island, NY
 
Diamond Blade Dealer
(888) 325-2338
100 South Ave
Staten Island, NY
 
joseph galante& son contracting,Inc
(917) 613-6351
30 canterbury court
staten islanbd, NY
Services
Full Interior/Exterior renovation pro's, new homes, additions, roof raises, all phases
Membership Organizations
si board of realtors, HIC/ NYC registered general contractor
Prices and/or Promotions
5% discount when mentioning this site

Innovate Stones Inc
(908) 718-5616
720 East Elizabeth Ave
Linden, NJ
Services
Kitchen & Bath Countertops
Membership Organizations
NKBA

Data Provided by:

Restoring Mortar Joints in Historic Buildings

Provided By:

Source: Masonry Construction
Publication date: October 1, 1993

By Kenneth A. Hooker

In a properly designed and constructed masonry wall, mortar joints can last 50 years or more without maintenance. Eventually, though, natural weathering by wind and rain will cause the mortar to erode. Masonry with seriously deteriorated mortar can be repaired by repointing; that is, removing the damaged mortar back to a uniform depth and refilling the joints with new material.WHEN TO REPOINTRepointing should be considered whenever existing mortar joints are eroded 1/3 inch or more from the face of the masonry, visibly cracked, or separated from the masonry units. It is seldom necessary to repoint all the joints in a building. To avoid needless effort and control costs, it's best to repoint only those areas where the mortar actually has deteriorated.MORTAR COMPOSITIONWhen repointing historic masonry, trying to match the original mortar is important. All mortars consist of water, aggregate, and a binder. The mason should match each of these as close as he can to the original mortar. Lime was the sole binder in most mortar produced before the introduction of portland cement in the 1870s. Repointing mortar for old masonry may use lime alone or lime combined with a small amount of white or gray portland cement to speed setting and improve durability. Aggregate makes up the largest portion of mortar and is the most important element in matching color and texture.

Click here to read full article from Masonry Construction

Local Events

Long Island Building & Facility Maintenance Show
Dates: 5/5/2009 – 5/8/2020
Location:
David S. Mack Sports & Exhibition Complex - Hofstra University Hempstead
View Details