Retrofitting Sarking Under Metal Roof

Cavity which can allow the metal roof sheet temperature to drop below dew point increasing the risk of condensation formation.

Retrofitting sarking under metal roof.

There is a product called foil board it is 10 mm polystyrene with reflective foil adhered both sides. It is light and easy to work with and you can fit it to roof battens between rafters or trusses. Dismantle all roof battens to enable you to install sarking beneath them. Remove the ridge capping to easily get rid of roof tiles and clips.

If you re just changing them. You also could install a corrugated through fastened metal roofing product and probably not have issues. Unfasten all the roof clips that hold the roof tiles down. What is roof sarking.

If some are damaged replace them with new ones after putting the tiles back. To do this you will have to remove the capping on the ridges. Sarking is pliable laminated membrane well that s how bradford describes anyway. This will give you space to lay the sarking on.

Unfasten all clips that take hold of the roof tiles. You may use a staple or nail gun to fasten them with the rafters. This video answer the question what is sarking. 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.

The use of anticon roofing blanket or vapour permeable sarking directly under the roof sheet is recommended to reduce this risk. What is roof sarking. Since sarking sits directly underneath your roof it s impossible to retrofit sarking without tearing off your current roof. Then proceed with the following.

Here are just some of the considerations your roofers make when it comes to getting the best and most effective result from roof sarking. You can t retrofit sarking without lifting roof sheets but there is a solution.