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Scope of Work:

Repoint selected areas of two adjoining buildings

• Replace lintels
• Replace deteriorating window sills and frames

Match brick and mortar in two buildings built 56 years apart and with different weathering in the front and rear of the buildings. Meet historic commission requirements. Replace lintels that were anchored into the building with steel.

A Tale of Two Buildings

While 30 Dean Road was built in 1927 and 149 Beaconsfield Road was built in 1984, the two buildings join together, wrapping around a tranquil courtyard that contrasts with the busy intersection that abuts the buildings in Brookline.

Both structures are composed of brick, wood and steel, but the 30 Dean Road building is solid, load-bearing brick, while the newer building is brick veneer.

Masonry between the tops of windows and the roof on the Dean Road side needed to be repointed, as did areas between lintels and sills in the rear of 30 Dean Road. Not only were brick and mortar different on the two buildings, but it had weathered differently in the front of the buildings than it had in the rear.

The older building has two curved bay fronts featuring cast-stone flat arch lintels with steel angle backup on the second and third floors. The first floor features cast-stone lintels with floral medallions and iron French balconies at the windows.

Reinforcing steel in the cast-stone lintels had corroded and expanded to many times its original size, damaging the cast stone. Use of hollow steel pipes embedded in the lintels enabled corrosion to travel the entire length of the lintels. Previous repairs had been “ineffective” due to improper preparation and repair materials, according to Edward Moll, principal of Structures North Consulting Engineers, Inc.

In the most severe cases, “rust jacking” took place. When steel corrodes, it expands to many times its original size and lifts the masonry at the jambs. It also either lifts the cast-stone lintel above it or depresses the steel lintel downward.

Getting It “Just Right”

Moll worked on a bidders’ list and highly recommended Statewide, because “they had performed well in the past and they’re a pleasure to work with.”

The severely damaged lintels had to be replaced with new galvanized steel lintels and custom-fabricated precast-stone lintels. Where corrosion was moderate, lintels were protected with high-performance coatings.

The length and profile of the custom-fabricated lintels had to be “just right,” Moll said, as did the accompanying ornamentation, which features a raised keystone. A brick cornice in front of the building had also deteriorated.

“When we dismantled the lintels, we found corroded steel behind the cast-stone lintels,” Moll added. “We thought it would be loose, but it was riveted to a channel. We had to grind off the bolts, then blind bolt or plug weld the new lintels to the previous channel.”

On the Beaconsfield Road walls, concrete flat arches were built without steel lintels. As the masonry façade expands and contracts, the flat-arch lintels act as a wedge and drop down a small amount, causing the mortar that surrounds the concrete lintels to crack. The cracks allow water to seep in, which causes further damage as it freezes and thaws.

Perimeters of concrete lintels on the 149 Beaconsfield Road side of the building had to be cut out and refitted with backer rod and sealant to prevent water filtration and allow some movement of the brick veneer without further damage to the mortar.

Finding a Match

For the repointing portion of the project, Moll was especially appreciative of Statewide’s ability to match the new brick and mortar with existing brick and mortar.

“Matching the brick and mortar is always a challenge,” according to Moll. “A lot of lesser restoration people don’t get it right. Statewide does. We went through about 20 different brick samples and, with a mortar pallet, about 50 different combinations.”

In spite of the project’s challenges, Statewide completed the job on time and on budget.

“Some contractors are change-order happy,” Moll said. “These guys stick to their price. Change orders are minimal.”

Even more important, the job was done right.

“They pay attention to detail,” he said. “When you get to the stage where you do a punch list, it’s difficult to find anything they’ve missed. If Statewide  is on the job, it’s going to be perfect.”

Property Manager Kirsten Bulger of the Renzi Bulger Group also gave Statewide RM high marks.

“They’re fantastic,” she said. “I always try to work with Statewide RM if I can. They’re extremely professional, quick, and accurate with their pricing. I’ve never had any complaints and I’ve worked with them for years.”