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Thailand
Mono-slope frame

PEB frame type

Mono-slope frame

One roof plane falling from a high column line to a low one, with no interior columns. Simple to build and easy to place against a boundary or an existing building.

Overview

What is a mono-slope frame?

A rigid frame whose rafter runs in one direction only, from the top of a tall column to the top of a shorter one. All roof water drains to the low side.

The single plane gives a clean modern look, keeps the high wall on one side for signage or clerestory light, and lets the building sit tight against a boundary, a road or another building.

Uses

When this frame fits

  • Narrow plots and boundaries

    Rainwater falls away from the neighbour or the road, and the low side can sit on the boundary.

  • Side extensions

    Added along an existing building, draining away from it.

  • Small units and shops

    Workshops, retail units and showrooms with a high front facade.

  • One-direction roofs

    A single roof plane can face the direction you choose, for example for solar panels.

Design

What our engineers check

  • 01

    Gutter on the low side

    All roof water reaches one gutter, so gutter and downpipes are sized for the full roof area.

  • 02

    High-side wall

    The tall column line carries more wind on its wall; girts and bracing are designed for it.

  • 03

    Wind uplift

    A single roof plane is checked for uplift at edges and corners.

  • 04

    Future growth

    Where the building may be extended later, we plan which side the new bays will join.

FAQ

Questions Thai clients ask us

How wide can a mono-slope building be?

It depends on height, slope and loads. As the width grows, the high side gets taller; for wide buildings a gable or multi-span frame is often more economical. We size it for your project.

Can a mono-slope frame be built next to my existing factory?

Yes. Send us the existing building’s height and gutter level so the new roof drains away from it.

Not sure which frame suits your building?

Send us your building size and use. Our engineers propose the frame type, steel weight and a CIF/DDP price for your site in Thailand.

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