Spray foam Insulation from Metropolitan Insulation provides both Stabilisation & Weather proofing Insulation for Agricultural Buildings. Spray-applied polyurethane foam is a chemically-modified polyurethane foam applied to the underside of the roof which bonds slates and tiles to each other and to structural or supporting timbers to replace the anchorage of fixing nails.

It is a much less costly alternative to re-roofing and can be applied to slates, tiles, pantiles and other various roof coverings. It is ideal for agricultural buildings.
It permanently cures the problems of nail fatigue and makes the roof much more resistant to storm or impact damage. Because it is liquid when applied, it seeks and seals any unwanted air leakage that may occur preventing the ingress of wind-driven rain, snow and dust and dramatically reducing heat loss.
The foam can be applied to various depths and has a K-value of 0.02W/mK. When sprayed to a depth of 85mm the U-value of a typical roof with 100mm fibreglass at ceiling level is reduced from 0.34W/m²K to 0.16W/m²K, surpassing current Building Regulations.