THERMORA — PRODUCT SELECTION BRIEF
Firestop modules
Modular firestop enquiries for cable routes and service openings in compartment walls.

Editorial selection guidance; dimensions in examples are enquiry examples, not confirmed supply specifications. Tested properties require grade-specific company documentation.

OVERVIEW
Service penetrations need a system that matches the wall or floor, opening size, service arrangement and required performance. Modular firestop selection should begin with an opening schedule and photographs or drawings. The brown module shown is a visual concept; profile, formulation and permissible installation are confirmed for the exact proposed system.

SELECTION PARAMETERS
Product format: Preformed module concept for system-based penetration enquiries
Illustrated appearance: Brown textured rectangular module with raised-profile features
Supporting construction: State wall / floor type, thickness and construction detail
Opening dimensions: Width × height, or diameter, plus required seal depth
Penetrating services: Cable types, bundle size, trays and other services in the opening
Service fill: Provide actual occupied area and required clearances
System accessories: List any sealant, backing, frame and support components
Maintenance access: Describe planned changes or future services before system selection
Installation record: Opening ID, location, selected design and inspection record
Quantity basis: Opening-by-opening schedule; module count follows system layout

REFERENCE ENQUIRY — NOT A SUPPLY SPECIFICATION
Example enquiry only: 600 × 400 mm cable opening through a compartment wall; attach wall details, cable-fill drawing and required fire performance. Module size and quantity are system-specific.

GRADE-SPECIFIC EVIDENCE TO REQUEST
• System fire-resistance classification and test scope
• Permitted opening sizes, seal depths and service arrangements
• Smoke / air / water properties where documented

Start with an opening register
Give each opening a location and ID, record its dimensions and construction, then add service type, quantity and supporting details.

Choose the whole system
Check the documented construction, permitted service arrangement, seal depth, ancillary products and installation access together. A loose module does not establish a fire rating.

Plan for handover
Retain the selected design, product identification, installation photographs and inspection records against each opening. Changes to services need a new suitability review.

FREQUENTLY ASKED QUESTIONS
Can a module be used in any opening?
No. The supporting construction, opening dimensions, services, clearances and complete firestop design must fit the documented system.

How many modules are needed?
Use an opening-by-opening layout after the exact module size, seal depth, service fill and ancillary components have been selected.

Can cables be changed later?
Any re-entry or alteration must follow the selected system’s instructions and be checked against the permitted service arrangement.

General industry reference: https://www.hilti.co.uk/engineering/tutorial/how-to-install-hilti-cfs-bl-firestop-blocks-for-cable-tray-penetration-eta/tnvbt2
Third-party data do not describe THERMORA products.