DAFA RooFoil 230 MH is a strong vapor-permeable membrane used for roofing.
DAFA RooFoil 230 MH roofing underlayment
DAFA RooFoil 230 MH is used in roofing applications as a self-supporting material, in both ventilated and unventilated roof structures at gradients of more than 15˚.
DAFA RooFoil 230 MH is a 3-layer membrane made from a combination of PP fabric and foil with high tear strength. The membrane is vapor-permeable with an Sd value of approx. 0.02 m. The Sd value must be multiplied by a factor of approx. 5.7 to obtain the Z value. DAFA RooFoil 230 MH has a red surface with dotted lines on both sides to mark the overlap.
DAFA RooFoil 230 MH roofing underlayment is included in the Nordic Ecolabellings database of construction products that can be used in Swan-labelled buildings.