img(height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=2939831959404383&ev=PageView&noscript=1")

The secret to keeping flat roofs warm, watertight and thermally efficient

Pre-bonded insulation systems protect buildings through all weathers and are quicker and cheaper to install on site than multi-layer alternatives

In association with
Tapered insulation schemes keep flat roofs dry and the buildings beneath them warm.
Tapered insulation schemes keep flat roofs dry and the buildings beneath them warm.

Tapered insulation is installed as part of a flat roof’s waterproofing build-up. Its multifunctional design enhances a building’s thermal performance and manages a roof’s water run-off to ensure it flows into the appropriate outlets or gutters.

If water is not properly dispersed from a roof, its weight will lead to deflections forming and increase the risk of ponding and water-based structural damage. A well appointed tapered insulation scheme can extend the life of a building so selecting a single-layer or multi-layer system specifically designed for a particular application is important.

Refer to industry guidance

The Single Ply Roofing Association (SPRA) code of practice has excellent guidance on specifying insulation systems that meet industry standards for water run-off, pitch size, wind load calculation, falls and weight ratio. 

Also useful for performance requirements across a range of applications is BS 6229:2018, the standard that defines best practice in flat roof design and maintenance. 

Should I choose a single or multi-layer insulation option?

Single-layer tapered insulation systems are bonded under factory-controlled conditions. They are ready to install once delivered to site so are a time and cost-effective alternative to multi-layer solutions.

The insulation within the single-layer bond is monitored for its volume and minimum pull-off performance. It is then installed - in one block - to the roof, followed by the waterproofing. This not only guarantees the insulation will perform as-designed, it significantly reduces application times and material waste.

A multi-layer solution might appear to be a more cost-effective option, but the benefit is negated by the additional time it takes to bond and install the insulation layer-by-layer. This process is eliminated with a pre-bonded single-layer system.

  • Gradient single-layer tapered insulation offers an excellent thermal, watertight roofing performance.
    1 of 3
    Gradient single-layer tapered insulation offers an excellent thermal, watertight roofing performance.
  • Single-layer systems are pre-bonded so they can be adhered to the roof in one block.
    1 of 3
    Single-layer systems are pre-bonded so they can be adhered to the roof in one block.
  • Gradient's technical team work alongside clients to design individually tailored insulation schemes.
    1 of 3
    Gradient's technical team work alongside clients to design individually tailored insulation schemes.
123

Is a site survey always necessary?

A site survey ought to be a prerequisite when specifying tapered insulation for flat roofs. In many instances, the initial take-off drawing/specification of a project will differ from what is the reality on the ground. Surveys are particularly important for modular single-layer systems, which can't be cut or altered once delivered to site.

A survey will determine a roof’s dimensions and take into account potential obstructions or openings, such as rooflight and drainage outlets, which could affect the layout of a bespoke-designed insulation scheme. It can also take into account any backfalls or deflections that need to be overcome.

Call in the help of experts

From a specification point of view, quality is built-in with single-layer tapered insulation systems. Gradient, for example, provides a turnkey service as part of its bespoke manufacture of flat roof and tapered roofing insulation systems.

From consultation to project completion, Gradient’s technical teams work alongside clients to ensure the successful implementation of its individually tailored tapered insulation schemes. Each bespoke solution is produced to ISO 9001; one of the most widely adopted management standards in the world.

For more information and technical support, visit gradientuk.com

 

Contact:

01543 678777

sales@gradientuk.com


 

Latest

Learn more about why there has been an increase of damp and mould and how controlled ventilation can help

Learn more about why there has been an increase of damp and mould and how controlled ventilation can help

Lead the restoration of four war memorial sites, bid for a spot on a schools construction framework, design a riverside community hub and market square - some of the latest architecture contracts and competitions from across the industry

Latest: War memorials conservation project

Asked to comprehensively remodel the two upper floors of a Grade II-listed merchant's house, Carmody Groarke put living space at the top and added a striking aluminium pavilion

Remodelling a former merchant's house's upper floors, Carmody Groarke put living space at the top and added an aluminium pavilion

The parade of temporary interventions on our streets injects them with joy, colour and life – and has lessons for architects, argues Eleanor Young

Temporary interventions on our streets inject them with joy, colour and life, and have lessons for architects

Restaurant in Freiburg, Germany extends outside dining to nine months a year by installing weatherproof awnings

Extend outside dining to nine months a year with a weatherproof awning

1
123