GSA Historic Preservation Specified certified

GSA Historic Preservation Specified

U.S. Patent 6991400 certified

U.S. Patent 6991400 Protected

Tee Caps

scanner Tee Caps, also known as the WEATHERCAP® Joint Protective System or lead stone flashing, are patented soft lead strips designed to protect horizontal and vertical masonry joints from moisture penetration. Engineered to flex with building movement, they extend sealant life, resist corrosion and mold, and blend seamlessly into stone and masonry facades.

WEATHERCAP Joint Protective System (Lead Stone Flashing / Tee Caps)

Our Range of Products

WEATHERCAP Joint Protective System (Lead Stone Flashing / Tee Caps)

WEATHERCAP Joint Protective System (Lead Stone Flashing / Tee Caps)

  • Soft lead flexes with building movement, no leaks
  • Oxidizes to neutral grey, blends with masonry
  • Protects sealant, extending joint service life

Frequently Asked Questions

What is a tee cap?

A tee cap, also called the WEATHERCAP® Joint Protective System, is a soft lead strip interposed within masonry joints alongside caulk or sealant. It absorbs stress from building movement, reduces joint opening size, and prevents moisture penetration, extending the life of the sealant and protecting the structure from leaks and deterioration.

Where can I buy SG Cricket Caps?

What sizes are tee caps available in?

What is the difference between Type A and Type B tee caps?

How are tee caps installed in masonry joints?

Can tee caps be painted to match a building's facade?

Are tee caps suitable for historic preservation projects?

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Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Historic Preservation & Restoration

Historic Preservation & Restoration

Protects original masonry joints during restoration while meeting GSA historic preservation technical standards.

Government & Institutional Buildings

Government & Institutional Buildings

Used on parapets, copings, and cornices of federal buildings and monuments to prevent moisture damage.

New Construction Masonry

New Construction Masonry

Installed in new masonry joints to prevent sealant failure caused by building settlement and movement.

Educational Institutions

Educational Institutions

Protects masonry joints on university buildings and campus landmarks from long-term moisture penetration.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Restoration Contractors Choose Weathercap

Patented Lead Joint Technology

Our U.S. patented soft lead system permanently flexes with building movement, sealing masonry joints without cracking or tearing.

Proven on Iconic Landmarks

Installed at the Washington Monument, U.S. Supreme Court, and Smithsonian, our tee caps perform under the highest preservation standards.

Fast, Reliable Order Fulfillment

Orders ship in 6-foot lengths within 48 hours, backed by a continuously operating manufacturing and supply chain.

Ready to Protect Your Masonry Joints? Get a Quote Today

Share your project details and our team will respond with technical specifications, pricing, and lead times within one business day.

Contact Us Today

For immediate assistance, feel free to give us a direct call at (985) 649-4000.