H2 Engineering Modular Garages H2 Engineering Modular Garagess

Structural Steel Buildings » Frequently Asked Questions

What is a portal frame?
It is a technical term which distinguishes between an old style 'Truss' frame with a horizontal cord and zigzag angle iron and frame that follows the roofline. Portal frame construction is a method of building and designing simple structures, primarily using steel. The connections between the columns and the rafters are designed to be moment-resistant, i.e. they can carry bending forces. Because of these very strong and rigid joints some of the bending moment in the rafters is transferred to the columns. This means that the size of the rafters can be reduced or the span can be increased for the same size rafters. This makes portal frames a very efficient construction technique to use for wide span buildings. Portal frame construction is therefore typically seen in warehouses, barns and other places where large, open spaces are required at low cost and a pitched roof is acceptable.

Do you design your portal framed buildings?
Yes. At H2 we offer a full in house package. We design, engineer and fabricate all buildings from start to finish.

What standard sizes do you offer?
With portal framed buildings there is no real standard size. H2 can manufacture portal frame buildings to suit individual needs.

What materials do you use?
Frames are made from RSJ's. Cladding used is all Prime and can be in Polyester or Plasic Coated. Purlins are either timber or steel multi-beam. We source all our materials from major suppliers, and we ensure and maintain 100% quality control over the products that come into our warehouse. In the unlikely event that the material is defective, it is returned and replaced.

What sort of doors are available on portal frames?
We can supply industrial roller doors along with steel access doors.

Are your buildings sheeted to ground level?
This is a customer decision and H2 can supply wall sheeting to whatever length required.

Is there a maximum size?
No. With portal frames the possibilities are much greater as compared to sectional buildings.

I don’t think I can manage erecting the building myself. What can you offer?
We can provide you with steel erectors details that will be happy to erect the building for you. This would be independent of H2.

Can you deliver?
Yes we provide a comprehensive delivery service throughout the UK.

Website: Concept NI Web Solutions