Project1_Layout 1 07/05/2013 FLAT ROOFING & WATERPROOFING SYSTEMS
BIM: flat Roofing and
Aman Chahal, co-founder and director of TaperedPlus, talks to RCI about Building Information Modelling and how it is used within his company
The 2016 mandating of Building
Information Modelling (BIM) for all
government procured assets was a major
step. The business case was made,
and there are studies suggesting costsaving
in the tune of 30% within the construction
industry, including effectively and efficiently
running the facilities.
Twelve months later, the 2017 report from
NBS highlighted “an increasing frustration from
construction professionals on the lack of clarity
and enforcement by the government of its own
BIM Level 2 mandate”.
Whilst working in BIM is now mainstream
across the construction industry, especially
in larger projects, more still has to be done to
maximise its full potential.
Data needs to be organised more intelligently,
and it gives a whole new opportunity for increased
collaboration. One of the distinguishing features
of BIM is collaborative working.
The collaboration comes in the form of how
the information is exchanged between different
parties, and this is the crucial aspect. Design
information is shared through a common file
format, which enables any organisation to be
able to combine that data with their own to
make a federated BIM model, and to carry out
interrogative checks on it. At TaperedPlus, we
already have all the tools needed to create the
information needed for extra information (based
on the information currently available) for BIM
level 3 through collaborative working with our
manufacturing partners and unique outputs we
With BIM and flat roofing, there are four major
areas to consider which can add value:
• Material properties
• Cost certainty
• 3D and facilities management (FM)
As an independent company, we are in an ideal
position to get the best out of each product
group at our disposal. For example, when it
comes to acoustics/fire, the properties of mineral
wool come into its own. Yet if there are height
restrictions, PIR is the preferred option.
We believe if one manufacturer object replaces
another within the model, even within the same
product group, the model should highlight these
062 MAY 2018 RCIMAG.COM
Victoria Gate, Leeds, a project supported and supplied by TaperedPlus. The complex nature of the project meant
that the design was carried out in BIM and showcased the real benefits in the delivery of BIM Level 2 projects
selling points and highlight the impact this has on
the building and/or performance.
Scheduling and cost certainty
One area to consider is scheduling. If you can
accurately calculate speed versus cost, which has
long been a contentious issue within construction,
it can significantly improve margins.
Cost certainty is also high on the agenda
of those stakeholders linked to BIM – main
contractors and traditional developers, such as
the retail sector, are moving towards supply chain
certainty where the price is negotiated and fixed
at a high level through more robust supply chains.
This means that using the software available, the
bid team can price quickly and accurately earlier
in the process, with less strain upon the traditional
quantity surveyor at a later stage.
A lot of people that we come across confuse BIM
with 3D schemes. However, within roofing are
they needed? As:
1. There are no major clashes/intricate details on
2. Will they make the master model too heavy?
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“BIM and construction professionals: setting collaborative professional standards that acknowledge and
interface with technological development is the new imperative.” Alan George Muse, global director of built environment at RICS