Retrofitting Sarking Under Metal Roof
You may use a staple or nail gun to fasten them with the rafters.
Retrofitting sarking under metal roof. If some are damaged replace them with new ones after putting the tiles back. Unfasten all clips that take hold of the roof tiles. You can t retrofit sarking without lifting roof sheets but there is a solution. The use of anticon roofing blanket or vapour permeable sarking directly under the roof sheet is recommended to reduce this risk.
If your home s existing shingles are pretty curled you could install a textured metal roof such as a metal shingle shake or tile directly over the curled shingles along with underlayment. What is roof sarking. If you re just changing them. Sarking is a pliable membrane that sits under your roof like a protective second skin.
There is a product called foil board it is 10 mm polystyrene with reflective foil adhered both sides. Dismantle all roof battens to enable you to install sarking beneath them. Then proceed with the following. What is roof sarking.
Now you can lay the sarking sheets. This will give you space to lay the sarking on. Remove the ridge capping to easily get rid of roof tiles and clips. You also could install a corrugated through fastened metal roofing product and probably not have issues.
Since sarking sits directly underneath your roof it s impossible to retrofit sarking without tearing off your current roof. To do this you will have to remove the capping on the ridges. Here are just some of the considerations your roofers make when it comes to getting the best and most effective result from roof sarking. Sarking is pliable laminated membrane well that s how bradford describes anyway.
Lay the sarking sheets on the roof cavity with care and precision. Cavity which can allow the metal roof sheet temperature to drop below dew point increasing the risk of condensation formation.