Terrasol Flat Roof Mounting Systems

Flat Roof PV Mounting Systems

Terrasol mounting systems for flat roofs and concrete slabs. Screwed or ballasted fixing, S320GD steel, tilt angles 5°–35° for maximum output on every roof.

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For Every Roof

Solutions for flat roofs with or without penetration — screwed or ballasted fixing.

S320GD Steel

Hot-dip galvanised high-strength steel with 25+ years service life in outdoor conditions.

Free Structural Analysis

Every project includes a Eurocode-compliant structural analysis, signed by a certified engineer.

Flat roof PV mounting systems by Axinar Terrasol are designed exclusively for installations on flat roofs and concrete slabs. With a choice of screwed or ballasted (weighted) fixing, they cover every requirement — from industrial buildings to apartment blocks.

Choosing an Axinar flat roof PV mounting system, you get safe installation without risk to waterproofing, an optimal tilt angle for maximum energy yield, and a modular design for fast assembly. Every rooftop solar mounting system includes a free structural analysis per Eurocodes.

Beyond flat roof PV mounting systems, Axinar also manufactures mounting structures for ground-mount solar parks, solar carports and pitched roofs.

Fixing Methods

Flat Roof PV Mounting — Fixing Options

Method selection for flat roof PV mounting is based on the roof characteristics and project requirements.

Screwed to Concrete

Flat roof PV mounting systems with screwed fixing provide maximum stability and safety for permanent installations. Suitable for buildings that allow penetration, with top resistance to wind and seismic loads.

Ballasted Fixing

Completely non-invasive flat roof mounting — no penetration required. Ideal for rented or protected rooftops, with weight adjusted to local wind conditions.

Systems suitable for flat roofs with or without penetration capability.

Adjustable tilt angles for maximum energy yield.

Fixing options for every project requirement (screwed or ballast).

Modular design for easy and fast installation.

Terrasol Mounting Systems

Flat Roof PV Mounting Systems — Choose Your System

Screwed and ballasted systems for every flat roof type — from residential to industrial buildings.

Terrasol 1V

Surface	Flat roof – Concrete slab
Fixing type	Screwed to concrete
Panel type	Monofacial & Bifacial
Steel grade	S320GD
Panel rows	1
Orientation	Portrait
Tilt angle	15° – 35°

Terrasol 2V

Surface	Flat roof – Concrete slab
Fixing type	Screwed to concrete
Panel type	Monofacial & Bifacial
Steel grade	S320GD
Panel rows	2
Orientation	Portrait
Tilt angle	15° – 25°

DuckStand

Surface	Flat roof – Concrete slab
Fixing type	Screwed / Ballast
Panel type	Monofacial & Bifacial
Steel grade	S320GD
Panel rows	1
Orientation	Landscape
Tilt angle	5° – 10°

East West

Surface	Flat roof – Concrete slab
Fixing type	Screwed / Ballast
Panel type	Monofacial
Steel grade	S320GD
Panel rows	1+1
Orientation	Landscape
Tilt angle	5° – 10°

Numbers That Speak

Experience and reliability in every rooftop installation.

4 types

Mounting systems for every flat roof type

5°–35°

Adjustable tilt angle range

2 methods

Screwed or ballasted fixing without penetration

25 +

Years of durability with hot-dip galvanised steel

Mechanical Design

Flat Roof Mount Advantages

Waterproofing

Flat roof PV mounting with the ballasted method requires no penetration, preserving full waterproofing. The screwed method uses special waterproofing gaskets at all penetration points.

East-West

Dual panel orientation (East–West) ensures uniform energy production throughout the day and maximises the use of available roof area.

Wind Load

Design follows Eurocodes for wind load (EN 1991-1-4). The ballasted method adjusts weight to local wind conditions.

Modular

Modular design enables fast installation and easy expansion. Fewer components, less labour time, lower cost.

FAQ

Frequently Asked Questions

Answers to the most common questions about flat roof PV mounting systems.

What is the difference between screwed and ballasted fixing?

Screwed fixing uses anchor bolts in the concrete, providing maximum stability for permanent installations. Ballasted uses weights (concrete blocks or slabs) with no penetration — ideal for rented or protected roofs.

Which system suits my roof?

If your roof allows penetration and you want maximum stability, Terrasol 1V/2V are ideal. If you want no penetration or the roof is rented, DuckStand and East West with ballasted fixing are the best choice.

What is the East-West system?

East-West positions panels in pairs at opposing tilts (East–West). This delivers uniform energy production throughout the day, reduced inter-row shading, and greater use of available roof area.

Do they support bifacial panels?

Terrasol 1V, 2V and DuckStand support both monofacial and bifacial panels. East West supports monofacial only due to the opposing paired configuration.

Will there be a waterproofing problem?

No. The screwed method uses special waterproofing gaskets at penetration points. The ballasted method involves no penetration, so waterproofing remains completely intact.

Can they withstand extreme weather?

Yes. Systems are designed per Eurocodes for wind load (EN 1991-1-4), snow load (EN 1991-1-3) and seismic action (EN 1998). Every project includes a project-specific structural analysis.

What is the lead time?

After order confirmation and advance payment, we can deliver up to 1 MW per week. Exact timing depends on the complexity and scale of the project.

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