Project For Building News
High-height ventilated crawl space: the applications of Everest
The ventilated crawl space adapts to the project, not the other way around.
Heights, service systems and slopes require different solutions.
There are contexts in which the subfloor becomes a true design element: significant cavities, complex service runs, level differences that need to be managed with continuity.
With Everest, an element made of recycled plastic and compliant with CAM building requirements, it is possible to create high-height ventilated crawl spaces (up to 3 metres) while maintaining ventilation and adaptability even in the most complex configurations.
The specific applications of Everest
It is particularly suitable for use in foundations with inverted beams or where level differences occur. It can be cut to size to reach the required height, adapted to sloping substrates, or used for the construction of sloped screeds.
Everest for high-height ventilated crawl spaces - Project For Building
When the ventilated crawl space is no longer a standard solution
The function of a ventilated crawl space is well known: to create an air cavity between the ground and the building in order to stop rising damp, promote ventilation and contribute to healthier indoor environments.
As long as the heights remain limited, the solution itself is relatively simple. When they increase, however, the crawl space becomes a true design element.
Already at the design stage, you need to manage a volume that must remain continuous, ventilated and consistent with the entire build-up.
Everest was developed to perform in these conditions, where a standard crawl space is no longer enough.
t is the functional element for these conditions:
- very high cavities
- complex crawl spaces
- renovations (including swimming pools and tanks)
- management of service systems and underground utilities
- ramps and surfaces with non-standard geometries
Everest for ventilated crawl spaces - advantages
Ventilation of the ventilated crawl space: how to design the airflow.
A crawl space only makes sense if it works. And it only works if the air actually moves.
Natural ventilation is based on a simple principle, but it must be designed carefully.
To activate the natural airflow, the following is required:
- air inlet on the north side
- air outlet on the south side at a higher level
- ventilation openings arranged every 4–5 metres
- pipes with an indicative diameter between 80 and 120 mm
Then there are the site details, the ones that make a difference over time.
For example, cutting the pipe diagonally improves the draught and makes ventilation more effective.
Formwork installation: practical site guidelines
The installation of Everest formworks is quick and intuitive: lightweight elements, dry assembly, and layout in rows starting from a corner.
This does not mean, however, that everything is automatic.
The correct orientation of the modules, edge management and on-site adjustments are steps that require attention, especially when working with great heights. The formworks can be cut directly on site, making adaptation easier even in the presence of complex geometries.
Managing heights, service systems and slopes in the crawl space
As the space beneath the floor increases, so do the variables.
Service systems must fit without compromising ventilation, slopes must be managed without interrupting the continuity of the crawl space, and the entire system must remain stable.
The issue is not only “how much space is available”, but how that space is used. For this reason, we provide technical consultancy to define the best solution.
At Project For Building, we support you with::
- preliminary slab sizing
- installation layout plan
- bill of quantities
- cost estimate
- ongoing technical support
This is complemented by an organised logistics network across the whole of Italy, with an international presence as well, capable of meeting real construction site timelines.
Performance of the ventilated crawl space: what it depends on
The formwork must ensure stability and resistance during the installation and casting phases (indicatively at least 150 kg, corresponding to the weight of the operator plus pumping equipment).
The final performance, however, depends on the system as a whole: ground, subbase, module height and concrete slab. It is the integration of these elements that determines the actual load-bearing capacity.
EPD certification and compliance with CAM building requirements
Today, technical performance alone is no longer enough.
Everest has obtained EPD environmental certification, an increasingly relevant factor in a context where CAM requirements call for traceability, recycled content and verifiable documentation.
For those working on public procurement projects, this is an integral part of both the design process and the specifications.
A technical partner for high-performance construction
The ventilated crawl space is a well-established solution, but in more complex projects it is not enough to apply a standard scheme: the system must be managed as a whole.
This has been our approach for the past thirty years: combining technical expertise, process and operational support to provide designers with clear tools and solutions that work on site.
Because every project has its own variables. And our job is to help you manage them with method and with the added value of an efficient organisation
