FVHF develops new construction quality assurance protocol
For the past five years the Berlin-based German trade association for construction materials and components for ventilated rainscreen cladding, FVHF, has been assisting cladding contractors and designers by providing quality control checklists for quality assurance during construction.
The association, in conjunction with a selected committee of experts, has now extended its tried-and-tested, FVHF- and GTÜ-compliant construction quality assurance protocol to include natural stone cladding.
The construction quality assurance protocol ensures that any potential problems are identified early in the project and steps can be taken to prevent further damage occurring. The protocol is applied from design & specification onwards and accompanies construction work right up to successful completion and hand-over.
The German Federal Government’s Third Report on Construction Failures states that “due to their very low susceptibility to damage, ventilated rainscreen cladding facades hardly feature at all in the failure statistics”. An important prerequisite to ensuring this outstanding quality are stringent design and construction standards.
The questions that make up the quality control checklist have been compiled to assist designers and cladding contractors who not only enjoy the creative scope offered by ventilated rainscreen cladding systems but also want to keep up-to-date with the developing technology.
Range of Benefits
By choosing to apply the quality assurance protocol, construction clients will not merely safeguard the required quality standards but also ensure that their project will be completed to schedule and within budget, as well as minimising the risk of failures due to design errors.
The quality control checklist helps designers to identify and avoid potential problems before construction commences. The assessment reviews design and specifications, quality control in the flow of materials, ongoing documentation of progress on site, compilation of fault reports and monitoring of snagging works.
Ultimately, specialist cladding contractors are directly responsible for the quality of workmanship provided. They also share responsibility for the consequences of any design errors or faults in previous works if they fail to register a complaint at the appropriate time. The construction quality control checklist serves as a plausibility test for the construction drawings submitted, while ongoing construction work on site is checked against the specifications, thereby also preventing any unjustified retention of payment.
The FVHF- and GTÜ-compliant quality control checklist
The checklist is divided into five sections and can be used for undercut, anchor and pin fixings.
Section 1 Compliance with design and specifications (27 items)
Section 2 Monitoring of construction processes (30 items)
Section 3 Monitoring of construction processes / handling of materials on site (15 items)
Section 4 General control: safeguarding quality of construction (4 items)
Section 5 Project documentation on site (8 items)
A bibliography listing 27 current documents is included in the checklist.
The continuous development of technology and increasing demands in terms of design and construction quality have made it necessary to formulate this construction quality assurance protocol for natural stone ventilated rainscreen cladding systems and to produce a further, material-specific FVHF/GTÜ checklist.
The FVHF Association in Berlin will be pleased to respond to any technical queries. Specialist consultants and test engineers are available throughout Germany to carry out quality control assessments.
About the author of FVHF develops new construction quality assurance protocol
FVHFAssociation for construction materials and components for ventilated cladding.
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