When developing a list of qualified contractors for a masonry restoration project, ask these questions during the interview. Their answers will help determine if you are dealing with a qualified masonry restoration contractor.

Check out the answers at www.spshistoric.com.

Contemporary masonry

  • What is a water-managed wall, as opposed to a barrier wall?
  • What will your temporary shoring pattern be when removing masonry to replace a standard three-course flashing system?
  • How are you going to control dust when cutting and/or grinding out the mortar joints?
  • What is the depth for the brick mortar removal?
  • What kind of wall tie will you use when rebuilding?
  • Will you salvage the brick and, if so, how? If not, do you know where to find similar brick?
  • What mortar mix type (M, S, N, O, or K) do you plan on using?
  • How will you integrate and attach the new flashing system to the existing wall?
  • What is an end dam?
  • Are you using backer rod or bond breaker tape prior to caulking?
  • Are you using a primer for the caulk?
  • What is the width-to-depth ratio for the caulking you plan to use?
  • What kind of testing or mock-ups ensures a successful project?
  • Historic masonry

  • What is the existing mortar mix? If it is unknown, how will you find out the mortar's content?
  • How are you going to control dust when cutting and/or grinding out the mortar joints?
  • Based on the testing, what type of mortar do you plan on using to repoint?
  • Will you salvage the brick and, if so, how? If not, do you know where to find similar brick?
  • How do you plan on cutting out the mortar joints or extracting the brick without damaging the surrounding masonry or adjacent surfaces?
  • How deep will you cut out the mortar joints?
  • How will you achieve the correct mortar color?
  • How many lifts do you plan to repoint 75% of the removed mortar?
  • What kind of testing or mock-ups can be used to ensure a successful project?
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