Alta 343424 & 3232 Sigrist Large Pipe Chase Housing & Curb

The Alta AL-343424 Housing paired with AL-3232 14-inch Curb is a large pipe chase assembly designed to manage high-capacity roof penetrations. Capable of accommodating up to 32 Sigrist Exit Seals, this system is built with heavy-duty aluminum, UV-protected powder coating, full thermal break insulation, and stainless steel fasteners for long-lasting performance. Its recessed lid and 3-inch skirt overlap improve weather sealing, making it ideal for demanding rooftop applications.

Key Features:

• Accommodates up to 32 Sigrist Exit Seals
• Heavy-duty .125″ aluminum housing and curb with UV protected powder coating
• Full thermal break insulation in housing, curb, and lid interior
• Recessed lid and 3″ skirt overlap for weather protection
• 20-year warranty on housing and curb

Housing Model AL-343424: 34″ length × 34″ width × 24″ height

Curb Model AL-3232: 32″ length × 32″ width × 14″ height

Material: .125″ aluminum for housing and curb

Exterior finish: UV protected powder coating on housing and lid

Interior: Full thermal break insulation with insulation pad included

Fasteners: Stainless steel

Exit seals: Supports up to 32, sizes from ¼″ to approximately 2-7/8″ OD

Skirt/overlap: 3″ skirt overlap of housing over curb

Combined height: Approximately 45″ (housing + curb − overlap)

Warranty: 20-year housing and curb; limited lifetime on Sigrist Exit Seals

• Select the AL-343424 Housing and AL-3232 Curb sized for your roof penetration layout
• Install the curb on the roof deck with proper flashing and alignment
• Insert insulation pad into curb to ensure full thermal break
• Mount the housing onto curb, confirm gasket seal and skirt overlap
• Install Sigrist Exit Seals into designated openings and secure pipes or cables
• Attach recessed lid, seat gasket properly, and tighten stainless fasteners evenly
• Seal all joints and inspect the unit for weather tightness

Q: How many Sigrist Exit Seals can this assembly hold?
A: Up to 32 exit seals for pipes or lines.

Q: What pipe sizes are supported?
A: Outside diameters from ¼″ through approximately 2-7/8″.

Q: What is the combined installed height?
A: Approximately 45″ when mounted on the curb, accounting for the 3″ overlap skirt.

Q: Is insulation included?
A: Yes, both housing and curb feature full thermal break insulation.

Q: What warranties are provided?
A: Housing and curb carry a 20-year warranty; Sigrist Exit Seals have a limited lifetime warranty.