STS Glossary

STS Glossary

Every industry has its own vocabulary. Our clients’ knowledge of construction terminology varies, so we’re providing some common terms and definitions here.


Building Envelope- The Building envelope is the physical separator between the interior and the exterior environments of a building. It serves as the outer shell to help maintain the indoor environment.

Mitigation Technician- A mitigation technician assesses the level of water damage, the source of the water intrusion, and the best way to fix and prevent future water damage.

Reclad- To reclad a building is to remove the exterior of a building (cladding), repair any damage and then replace the exterior of the building.

Remediation- The correction of something defective or deficient.

Weather Resistive Barrier- A weather resistive barrier is any barrier between the exterior cladding of the building and the sheathing. It can consist of sheets, panels, paper, or can be liquid applied.


Addition- A wing, room, or additional story added to an existing building.

Remodel- To change or alter the structure, style or form of something. As it applies to our business, it usually means altering an existing room or structure to better suit your needs.


Cladding- A protective or insulating layer fixed to the outside of a building or another structure.

Membrane- A weather-resistant (flexible or semi-flexible) covering.

Mitigation- To lessen the impact or severity of something. In our business it applies to lessening the severity of water intrusion or damage.

Core Samples- A core sample is a cylindrical section of a naturally occurring or manmade substance.


Design Build- Design Build is a project delivery system used in the construction industry. It is a method to deliver a project in which the design and construction services are contracted by a single entity known as the design–builder or design–build contractor.

GMP- GMP stands for Guaranteed Maximum Price. The GMP contract establishes a price for a specific scope of work, that cannot be exceeded.

LSC- LSC stands for Lump Sum Contract. A LSC is a contract under which an owner agrees to pay a contractor a specified amount for completing work without requiring a cost breakdown.

Renovation- To restore to an earlier condition, as by repairing or remodeling.

Tenant Improvements- Changes made to the interior of a commercial or industrial property by its owner to accommodate the needs of a tenant. Who bears what portion of TI costs is negotiated between the lessor and the lessee, and is usually documented in the lease agreement.