How To Avoid Cold Weather Construction Failure

RoofingCold Weather, Materials, RoofingLeave a Comment

How To Avoid Cold Weather Construction Failure

BEC has seen thousands of defective materials and many of them are caused by not following the cold weather construction recommendations. We have witnessed many violations in the last several weeks and recommend reviewing the cold weather requirements on all of your materials. Waterproofing materials are particularly affected. Here is how to avoid cold weather construction failure:

Coatings, Sealants, Primers, and Adhesives:

As a general rule, cold temperatures change the physical properties of most adhesives, sealants, coatings, and primers should be at 40 °F and rising. Do NOT apply these products when freezing temperatures are expected within 24 hours after application and do not apply solvent-free products when freezing temperatures are expected within 12 hours after application.

Industry Standards Recommend:

  • Store all adhesives, sealants, primers, and coatings between 60 °F.
  • DO NOT allow water-based and solvent-free products to freeze ever. Frozen material must be removed from the site and never used.
  • Contractors should only bring materials from warm storage to the roof 1 to 4 hours prior to application.

Masonry:

  • The brick industry does not permit installing any materials that are frozen and recommends heating materials if below 32 °F. Newly installed masonry requires covering for 24 hours. Do NOT install Lime-based mortar if temperatures fall below 32 °F within 7 days.

Although some materials can be installed at a lower temperature, that doesn’t mean the substrate will accept them. We have seen many silicone sealants installed at the allowable temperatures but they failed badly because they did not bond to the substrate. We recommend consulting the manufacturer of both materials before installing.

Please call us anytime. Our team is ready to help!

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