Products packaged inpacks are delivered in PVC thermo-shrinking foil. Such packages must not be placed directly on the ground. Until installation, the product must be stored in a closed or roofed over warehouse. If such a warehouse is not available at the construction site, packs must always be protected with water impermeable foil. Exceptions are products packaged on palettes which are fully protected /covered with PE-foil.
At loading, transport and handling up to the site of installation, the product must not be damaged (the packaged product must not be thrown!) When stone wool is to be installed on a flat roof structure, packs or palettes ofstone wool should be carefully carried onto the roof, by machines, in order to avoid damaging of stone wool slab edges.
Unpacking and cutting of the product
The product, i.e. the package should be opened at the mere installation site. The foil should be cut with a knife on one of the narrower sides of the package in the direction of the slabs length. The product should always be cut on a clean, dry and flat base with a special knife for stone wool. Edges should be cut even and straight.
The text below contains practical tips that should be observed at the installation of insulation material:
- Install only dry and intact product on an already prepared dry base
- When laying the productin open space, it should be protected against atmospheric agents (rain, snow)
- If, due to inadequate protection at the construction site, the product is exposed to atmospheric agents or absorbs some water under pressure, stone wool slabs should be placed on a ventilated spot so that the moisture may evaporate and that the material may dry up; only such dried slabs, with unchanged insulation properties, may be installed
- Some layers of the structure should be installed in accordance with the sequence defined by the design documentation
- Stone wool slabs should be laid close to each other in order to ensure quality insulation of the building as a prerequisite for comfortable dwelling; if slabs should be laid intwo layers, the upper layer slabs must be staggered in relation to the lowerlayer ones, i.e. joints of the slabs of upper and lower layers must not fit
- At insulating pitchedroofs, insulation between rafters must fill up the whole space; with the use of a knife it can be ensured that the insulation fills up the entire rafter height
- When laying stone woolslabs in a flat roof system, the construction of temporary transport ways should be one of the measures for preventing damages to the insulation material that may be caused by the installation of further layers. If stone wool slabs are to be laid on a base of profiled steel sheets, it is recommended that the longer slab side be laid perpendicularly to the direction of metal sheet ribs and that slab joints are located on the upper surfaces of the sheet profiles
- At floor insulation, when the protection layer of a floating floor structure is laid, all transport routes leading over the stone wool must be secured by temporary paths.
Safety at work
It is clear that at the installation of stone wool care must be taken about basic industrial hygiene, which also applies to work with any other building material. Safety at work should be provided to the following extent:
- the clothes should be closed, large enough, with long sleeves and legs
- it is particularly recommendable to wear a head protection if the position of stone wool installation is above head
- people with sensitive skin should wear gloves in order to avoid skin irritation ( mechanical irritation)
- change clothes after each finished job; keep the work clothes apart from other clothes.
- protective masks are recommended for work in closed, cramped space in order to prevent inhalation of dust
- protective glasses that fit tightly to the face are recommended at high concentrations of dust and at work above head; people wearing contact lenses should always use protective glasses.
Cleaning of work space
- always dispose of waste
- premises where stone woolis handled should be cleaned frequently, one cleaning a day is desirable; before cleaning, damp the air with water
- good ventilation is one of the best ways of reducing dust in working area
- at the end of each work day, thoroughly wash your body; the best way is to have a shower with a strong flush of water.