PIR insulation
Protecting swissporPIR Alu boards from delivery through to installation
The properties of swissporPIR Alu must be preserved along the entire route from delivery to the closing of the layers. The condition of the edges and protection against moisture affect whether the boards can be laid correctly. Careful acceptance helps to make use of the parameters recorded in the documentation for the specific board. swissporPIR Alu is a rigid board with low thermal conductivity, but it requires careful handling on site. The core and thin facings can be damaged by incorrect handling. The terms ‘polyurethane boards’ and ‘polyurethane foam’ are broader than the precise designation of the PIR product. When assessing the space for PIR boards, the condition of the core and facings of swissporPIR Alu must be checked immediately after delivery. To assess the spatial benefit, the acceptance of packs of swissporPIR Alu must be linked to the place where the boards will later be used.

In this article
PIR boards from acceptance to the place of use
Full selection requires more than reading off the lambda, because damage to a corner can remain hidden once further layers are installed. The selection is intended to help detect non-conformity before the material is split between installation stations. Before comparing variants, show on a single drawing the batch markings, photographs of the edges and the scope of elements requiring assessment.
Document parameters and the actual condition of the material
The declared parameters apply to a product of a specific construction and thickness. For swissporPIR Alu, lambda is 0.022 W/(m·K), yet the declaration cannot be taken as permission for storage under arbitrary conditions. An energy comparison should include local crushing of the swissporPIR Alu board with the declared lambda of 0.022 W/(m·K).
The thermal calculation will be clear only if the parameters of swissporPIR Alu can be related to the actual condition and thickness of the material. A difference in thickness requires proper interpretation, since sealing the surface does not restore broken foam or lost support. The calculation should allow the suitability of a piece to be assessed without equating the appearance of the facing with complete function. As the basis for the decision, retain the actual thickness, the continuity of the core and the possibility of a correct joint with the adjacent board, instead of comparing only the price per centimetre of material.
Polyurethane insulation requiring protection on site
The boards should be stored horizontally on even, hard supports, with a gap from the substrate. They must be protected from sunlight, UV radiation and precipitation. The continuity of the polyurethane insulation must also be maintained wherever horizontal storage of swissporPIR Alu on even supports with a gap from the substrate is to be resolved.
When analysing continuity, it is worth protecting swissporPIR Alu from water, sun and damage during transport. The fit must be assessed for the actual geometry, because transport packaging is not a permanent roof over an exposed site. The installation plan should allow the condition of the edges and dry material to be preserved until installation. In the energy assessment, include the storage location, the covering of packs and the route for moving large elements, because these places will remain after purchasing a board with the best lambda.
Inspection after rainfall and before covering
Before installation, make sure the boards are dry and undamaged. The roof instruction requires damp insulation to be replaced. To preserve the thermal improvement, check the dryness of swissporPIR Alu and the cleanliness of cut joints before covering.
When assessing the durability of the effect, the condition of swissporPIR Alu after rainfall should be checked and clean edges prepared. The actual construction of the joint matters, because the roof instructions require damp insulation to be replaced rather than enclosed within the assembly. The layer build-up should allow the next stage to be carried out on a correctly prepared and accepted layer. At the inspection before covering, it is worth comparing the condition of the boards, the removal of dust and the protection of the open working edge with the adopted detail.
A safe storage place for the batch
For the storage location on the roof, the load-bearing capacity of the structure and the method of wind protection must be checked. The fact that a single board is light does not mean that any number of pallets may stand at one point. When limiting the height of layers, the temporary storage location for pallets of swissporPIR Alu on the roof must be assessed at the same time.
Besides selecting the lambda, the load-bearing capacity of the storage place for swissporPIR Alu and the protection against wind must also be verified. It is worth separating these requirements, because the low mass of a single board does not confirm that the entire stock can be placed at one point. The data collected should allow transport to be organised without excessive pressure and damage to layers already laid. Alongside the thermal calculation, present the unloading plan, the permitted storage zones and the routes for the crews, so that the result relates to a usable solution.
Polyurethane insulation: deliveries in appropriate stages
When planning deliveries, it is worth linking the quantity of material to daily work progress and the possibility of closing the layers. An excessive stock on an exposed site increases the requirements for covering and moving. When comparing cost and effect, include the delivery schedule for swissporPIR Alu linked to the closing of daily sections.
Before calculating profitability, it is worth establishing the quantity of swissporPIR Alu that can be stored and covered in the planned stage. The profitability calculation will be incomplete if we omit the fact that surplus stock increases protection requirements, while a shortage of a few elements can halt completion of a section. The chosen variant should allow unnecessary moving and downtime to be reduced without risking the condition of the insulation. When assessing the surcharge, set out the batch split, the order of taking boards and the acceptance dates before covering alongside the benefit obtained in the finished building element.
A case worth considering
The thermal benefit of swissporPIR Alu assumes material of adequate thickness and proper condition. Damaged corners and damp elements may require replacement or a change of cutting plan. It is therefore worth treating protection of the delivery as part of preparing the insulation. Precise acceptance reduces the risk of later shortages. The best lambda in the document does not replace proper storage of the board until installation.
7 branches. Materials closer to your project.

Free quote
Materials for your project
You may also find useful…
On a rectangular roof area, the large FA format makes it easier to plan a regular layout. The thermal effect, however, depends…
On a flat roof, thermal resistance matters, but so does the height available at parapets and outlets. Thermano Deck allows a relatively…
On façades there is often a lack of space at windows, at the building boundary or at the junction with the roof.…
Selecting flat roof waterproofing and insulation means checking their interfaces as well as individual products. A board with adequate thermal performance may…
IDELCO α-therm WALL is intended for the thermal portion of a cavity wall. Its low lambda helps to limit its thickness, but…
Installation routes in the attic must be agreed with the insulation of the sloped ceiling and the arrangement of the airtight layers…
Answering the question of how to plan and carry out roof insulation step by step requires first of all establishing the boundary…
A potato-store refurbishment should begin with a plan for checking the store before loading, rather than with insulation thickness. New insulation and…







