Detailing Control Joints in EIFS Systems
Control joints in EIFS are critical for managing thermal movement and preventing cracking in the finish coat. This article outlines spacing, joint construction, sealant detailing, and best practices for EIFS assemblies. Why Control Joints Are Required EIFS systems experience significant dimensional changes due to temperature and moisture fluctuations. Control joints prevent cracking in the base […]
Detailing Air Barrier at Floor Line Transitions
Floor line transitions—where walls meet floor slabs or floor framing—pose major risks for air leakage and thermal discontinuity. This article details how to maintain air barrier integrity and align control layers across floor assemblies. Floor-to-Wall Transition Types Common conditions include slab-on-grade to framed walls, intermediate steel or concrete floor decks, and cantilevered balconies. Each introduces […]
Detailing Air Barrier Transitions at Structural Steel Elements
Steel penetrations such as beams, columns, and connectors often interrupt the air barrier plane in exterior walls. This article explains detailing strategies to seal around these transitions and maintain envelope performance. Challenges at Structural Steel Interfaces Steel penetrations through the air barrier can result in significant leakage paths and are prone to movement due to […]
Integrating Fire-Rated Assemblies Into Exterior Walls
Exterior wall assemblies that require a fire-resistance rating—such as those at lot lines or between occupancy groups—must integrate thermal and moisture protection without compromising their fire performance. This article outlines how to detail and specify these assemblies properly. When Fire-Rated Walls Are Required IBC and local codes require exterior fire-rated walls based on proximity to […]
Precast Concrete Panel Joint and Anchor Detailing
This article outlines the best practices for detailing joints and anchorage of architectural precast panels to maintain control layer continuity, accommodate movement, and prevent air and moisture intrusion in high-performance envelopes. Understanding Panel Movement Precast panels experience shrinkage, thermal expansion, and structural movement. Joints must be sized to accommodate these factors and allow for sealant […]
Shelf Angle and Masonry Support Detailing
Proper shelf angle detailing is critical to supporting masonry veneer while preserving drainage, insulation, and air barrier continuity. This article provides design strategies, product suggestions, and common detailing errors to avoid. Purpose of Shelf Angles Shelf angles (also known as relieving angles) support masonry veneer at floor lines, transfer structural loads to the frame, and […]
Detailing Vertical Expansion Joints in Wall Assemblies
Vertical expansion joints accommodate thermal and structural movement in wall systems. This article outlines best practices for detailing, sealing, and flashing these joints across different cladding types including EIFS, masonry, and continuous insulation assemblies. Purpose and Placement Vertical expansion joints are used to allow for building movement due to thermal changes, shrinkage, seismic forces, or […]
Detailing Deck-to-Wall and Balcony Transitions
Balcony and deck transitions present some of the most challenging envelope detailing scenarios due to structural penetrations, variable loads, and exposure to moisture and temperature fluctuations. This article outlines best practices for minimizing thermal bridging, water entry, and long-term damage at these interfaces. Thermal Break Techniques Deck and balcony attachments that pass through the exterior […]
Transitions Between Continuous Insulation and Cavity Wall Construction
This article explains how to properly detail the interface between wall assemblies with exterior continuous insulation (CI) and those using traditional cavity wall construction, ensuring continuity of thermal, air, and moisture control layers. Understanding the Hybrid Condition Many commercial projects blend CI walls (with rigid foam or mineral wool) and cavity wall assemblies (with insulation […]
Soffit and Fascia Detailing in Ventilated Cladding Systems
This article explores strategies for detailing soffits and fascias in ventilated rainscreen assemblies, with a focus on maintaining airflow, insulation continuity, and protection from moisture intrusion. Ventilation Role at Eaves In ventilated wall systems, soffits provide intake air to the attic or ventilated roof and can also support rainscreen cavity ventilation. Proper detailing at the […]
