Product category:
Walls
News Release from: SAS (Europe) | Subject: Applying render
Edited by the Buildingtalk Editorial
Team on 18 May 2007
Applying render right despite the
weather
External rendering, scratch renders, silicone and acrylic top coats, sand and cement as well as thin coat render systems all need to be applied in the correct conditions.
Make hay while the sun shines This is a truly great saying for all those in the construction industry, there is nothing better than those first bright warm days; shirts soon come off, shorts on where allowed, on goes the sun cream
This article was originally published on Buildingtalk on 11 Nov 2004 at 8.00am (UK)
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Early spring is ideal for any construction, especially this year.
Everyone is so pleased after the torrential rainfall over the winter; this in itself was the cause of many problems.
However, caution must be exercised when temperatures rise and not just for health reasons, such as sunburn etc.
Building and more specifically, external rendering, scratch renders, silicone and acrylic top coats, sand and cement as well as thin coat render systems all need to be applied in the correct conditions.
South facing elevations are particularly at risk.
If render is applied at midday, direct sun and suction from a warm dry background together, will dry the render; it is a recipe for disaster.
Drying wind is another obstacle for applicators, sometimes more so than hot weather.
A mixture of the two would almost certainly cause major faults, possibly resulting in re-application.
We recommend always trying to apply in protected conditions summer or winter.
Time spent fixing a shelter, working out applications to follow the sun or fixing netting for shade, can be cost effective.
Imagine the cost of removing and replacing: material, labour, scaffolding etc, plus lack of confidence from the client.
Constructors must be made aware of the cost of replacement or repair whatever their deadlines.
Word travels quickly when something goes wrong and when one person has a problem, invariably the same faults are noticed elsewhere.
Crazing, cracking, hairline fissures, although not highly detrimental to the superstructure, are unsightly, bad for business and extremely annoying.
It's not easy on site, but these things need to be considered, the nature of materials must be borne in mind.
In bad conditions, wet, dry or cold, is the risk worth taking without precautions? Remember, hot windy conditions will dry renders before they can cure.
Good luck, have a great summer, enjoy this amazing weather and keep costs and call backs to a minimum. Request a free brochure from SAS (Europe) ...
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