We have created this Foundation Help & Advice centre to answer your questions about GreenRaft and its insulated foundation solutions. We are also providing information on various foundation types to explain the reason why a particular foundation might be used or has been selected by your structural engineer.

This image shows one foundation solution. There are countless options to support your structure and our foundation help and advice centre is there to explain the many options

It is not an exhaustive list, so if you have a question that needs an answer, please let us know. Hopefully, we will add your question to the section.

There will be some linking between the topics where subjects overlap, This should give a better understanding of the various foundations and how they are used.

It is a huge topic, so you will also find links to other authoritative sites where more in-depth articles are available.

The main factors that influence what type of foundation might be used are the load of the structure, the bearing capacity of the soil, the width of the foundation upon that soil and other site conditions. These site conditions may be soil and strata mixtures, water tables, nearby trees or removed trees.

Help Centre Main Topics

Across the top are five topics related to foundations, that make up this Foundation Help & Advice Centre. The topics cover foundation types, foundation design, thermal performance, costings, and installation.

Pick which one seems most appropriate for your question and see if the answer is in there.

Types Of Foundation

A Combined foundation is usually a footing that supports more than one column.

They are mostly used where the soil is suspect and columns have to be close together.

The footing would most typically be rectangular but in certain circumstance this could be varied depending on the point loads and the number of them.