Dairy building uses ‘spaced’ roof design for maximum ventilation
When Shropshire dairy farmer, Robert Ward commissioned a new building he took advice from local agricultural consultant P&L Agri Consulting.
He needed a replacement shed to house the 200 cow dairy herd at Ashford Grange Farm, Market Drayton with cow health being a key priority for the build.
Will Phillips from P&L, who specialises in advising on buildings for the dairy industry, recommended Marley Eternit’s fibre cement Profile 6 for the roof. He said: “Ventilation and condensation control is essential to ensure a healthy environment for cows, which is why I always recommend a spaced fibre cement roof for this type of building.”
With steel sheeting, warm moist air condenses on the underside of the roof before dripping onto livestock and bedding. In contrast, fibre cement has an ability to absorb up to 25 per cent of its dry weight in moisture before dissipating it in more favourable conditions.
Fibre cement has an installed life expectancy of at least 50 years. This applies even in aggressive environments such as livestock buildings where animals’ breath is slightly acidic, leading to rapid corrosion of steel roof sheets. Because fibre cement does not contain any metallic elements it is not affected by this environment, making it a highly cost effective roofing solution over the longer term.
A ‘spaced’ roof design was used for the building on Ashford Grange Farm in Market Drayton. This involved leaving a small gap between each vertical tier of sheets running from eave to ridge, allowing warm, moist air from livestock inside the building to escape. Additional ventilation was provided by Marley Eternit’s fibre cement open ridges, which are particularly suitable to spaced roofs.
Marley Eternit is the only UK manufacturer of fibre cement profiled sheeting. British made for British farmers, our wide range of products and ventilation systems are better for animal health and welfare, providing excellent noise and thermal insulation, reduced condensation and resistance to even the most extreme weather conditions.
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"Ventilation and condensation control is essential to ensure a healthy environment for cows, which is why I always recommend a spaced fibre cement roof for this type of building."
Will Phillips from P&L