EN 14315-1 Thermal Insulation Products for Buildings - Spray-In-Situ Rigid Polyurethane (PUR) and Polyisocyanurate (PIR) Foam Products - Part 1: Specification for Rigid Foam Spray System Before Installation

A European standard “EN 14315-1 Thermal insulation products for buildings - In-situ sprayed rigid polyurethane (PUR) and polyisocyanurate (PIR) foam products - Part 1: Specification for rigid foam spray system prior to installation” describes the requirements for in-situ sprayed rigid polyurethane (PUR) and rigid polyisocyanurate (PIR) foam products when applied to walls, ceilings, roofs, suspended ceilings and floors.

This standard is a specification for a rigid foam spray system prior to installation. It describes the product characteristics and includes testing, marking and labelling procedures and rules for assessing conformity. This standard does not specify the required levels of all the characteristics that a product must achieve to demonstrate fitness for purpose in a particular end use application. The required levels are found in regulations or non-conflicting standards.

This European standard does not cover factory-manufactured rigid polyurethane (PUR) or polyisocyanurate (PIR) foam insulation products or on-site products designed for use in the insulation of building equipment and industrial plants.

Foam products are called flexible or rigid. Flexible products are used in upholstery and mattresses and are characterized by their ability to continuously return, support, and regain their original thickness throughout the use phases. Non-flexibles are called rigid and do not have these flexible properties. They are mostly used for thermal insulation purposes and their compressive strength values ​​vary greatly. When the cell structure is crushed in a rigid foam, it does not fully recover its thickness. Some of these rigid foams have very low densities and very low compressive strengths and are sometimes described commercially as soft foams or semi-rigid foams.

For the purposes of this standard, in addition to the terms and definitions given in the standard “EN ISO 9229 Thermal insulation - Glossary”, the following apply:

• Polyurethane foam PUR (formed-in-place products) refers to a rigid cellular plastic insulation material or product with a structure based primarily on polyurethane type polymers.
• Polyisocyanurate foam PIR (formed-in-place products) refers to a rigid cellular plastic insulation material or product with a structure based primarily on polyisocyanurate type polymers.
• Polyurethane foam PU refers to rigid cellular plastic insulation materials or products containing both types of polymers based mainly on polyurethane (PUR) or mainly on polyisocyanurate (PIR) groups.
• Rigid foam spray system, kit of component components that produce rigid polyurethane (PUR) foam or rigid polyisocyanurate (PIR) foam when sprayed, characterized by the specified properties of the foam produced.
• Isocyanate component refers to liquid isocyanate product, which is one of the components of hard foam spray system.
• Polyol component refers to liquid polyhydroxyl product containing an expanding agent, catalysts and other additives, which is one of the components of the rigid foam spray system.
• Cream time refers to the time from the time the mixing procedure is initiated for the mixed ingredients until the moment when foam is observed to begin to rise.
• Gel time refers to the time elapsed from the time the mixing procedure is started for the mixed components until the moment when a polymeric strand can be pulled from the foam surface by means of a stick applied to the surface of the foam.
• Non-stick time refers to the time from when the mixing procedure is initiated for the mixed ingredients until the moment when it is determined, by means of a stick applied to the upper surface of the foam, that the upper surface is no longer sticky.
• Free rise density refers to the density of the test specimen cut without surface, taken from the reaction profile test specimen.
• The mixing ratio refers to the proportions of the components of the rigid foam spray system specified by the manufacturer to be sprayed to produce rigid polyurethane or polyisocyanurate foam. This may be expressed as a weight or volume ratio or both.

Among the numerous tests, measurements, analyses and evaluations our organization has carried out for businesses in various sectors, our organization also provides testing services defined in the standard “EN 14315-1 Thermal insulation products for buildings - In-situ sprayed rigid polyurethane (PUR) and polyisocyanurate (PIR) foam products - Part 1: Specification for rigid foam spray system before installation” with its trained and expert staff and advanced technological equipment.