KAPIPRO® KAPILLARSTOPP Avoid water damage in the metal roof
The roof structure is damp and has water damage. Despite optimal execution of the metal roof by a specialist company, such water penetration occurs in the lower area of the double standing seam roof, among others. Why is this and how can our KAPIpro capillary profile help?
What is the capillary effect?
The capillary effect is also called the capillary effect. The capillary effect describes the behaviour of liquids when they come into contact with sufficiently narrow tubes, crevices or cavities in solids. Since the weight of e.g. water in narrow cavities is very low, capillary force prevails over gravity. Which is why trees allow water to rise from their roots up to 100 metres. This is exactly the principle that works when rainwater and melting water are drawn upwards between two metal surfaces. In our case: the folding of the metal roof into the hooking nose upwards into the roof structure.
The KAPIpro® capillary profile
is made of stainless steel and can therefore be combined with all common types of metal. An exception is galvanised sheet metal, as there is a possibility of contact corrosion here.
The KAPIpro® Compriband
was specially made for standing seam roofing and, with a width of 35 mm, fits perfectly. In order to achieve the highest possible dryness, the Kompriband is absolutely necessary.
Why does our KAPIpro capillary profile and compression tape help to interrupt the capillary effect?
The KAPIpro capillary profile interrupts the capillary of the metal roof at the eaves and thus physically cancels out the capillary effect. Due to its weight, the water no longer overcomes gravity and drips back into the gutter. The Compriband helps to eliminate the capillary effect in the lower part of the double standing seam, in the area of the eaves. According to the current state of the kind, the double standing seam may be sealed in the upper part of the seam with a narrow Compriband. However, this does not prevent the suction effect of the water in the lower area of the standing seam in the eaves area. Applying our Compriband helps to prevent capillaries from forming in this area over the entire height of the standing seam.
Where can the KAPIpro capillary profile be installed?
Our KAPIpro capillary profile can be installed on all double standing seam roofs with a pitch of 3° and more. The profile is suitable for new construction and renovation. Whether it can be installed on existing roofs must be clarified by your specialist on site. Furthermore, the KAPIpro capillary profile is suitable for all dormers, recessed valleys and the roof bend of mansard roofs in double standing seam roofs. As our capillary profile is made of high-quality stainless steel (V2A), it is suitable for all common types of metal such as copper, Ugitop, Uginox, aluminium. The stainless steel profile cannot be used with galvanized steel. This will cause contact corrosion. The "less noble" material (zinc) is attacked by a chemical reaction with the stainless steel.
Who can install it?
The capillary profile may only be installed by a designated specialist company. This includes:
- Roofing and
- plumbers and
- if necessary, master carpenters
How long will a metal roof last?
A double standing seam roof can last 20-30 years or longer if it is executed by a specialist company in accordance with the rules. In practice, this is often not the case. An example: A customer had his roof made of stainless steel V2A. The execution of the roof had been carried out perfectly by colleagues. Nevertheless, after 8 years the customer had massive water damage in the roof construction, caused by the capillary effect of the water in the eaves area. This and many other similar cases were the inspiration for the development of the KAPIpro capillary profile.
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KAPIpro® sample box
1x capillary profile sample
1x Compriband sample
1x meter stick "KAPIpro"
1x 3-edge multigraph stick "KAPIpro"
1x business card
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