Sorry i left off last of question.
Sarking felt roof.
It is a common term in scotland australia and new zealand the shingles or slates are nailed directly to the sarking boards without.
They needn t be used in every application and instead their use largely depends on where in the country you are based and what type of construction you are building.
It is slightly different from flat roofing felt as it includes a strong woven base but it can become brittle over time and can rot into the guttering where it has been exposed to sunlight.
The original sarking felt on the pitched roof of my 1950 built house is brittle and in a number of places torn right through so that i can see feel the under side of the roof tiles.
Sarking boards are softwood boards generally about 150 mm wide that are attached to the rafters of a pitched roof to give extra strength to the overall structure of a building.
Ideal for an apex flat or pent roof shed felt and roofing membrane are durable and perfect for a newly built structure or to re cover existing roofing material.
If this felt is either incorrectly situated i e.
Obviously the roof is original ie never been re slated.
The roof does not leak at all and there is no signs of there being any moisture coming through but it does trouble me.
The felt i assume it s felt inside the roof area of my 4 bed house although the forth bed is a newish extension is hanging of in places.
The use of wood panels or sarking boards called sheathing sheeting or decking in american english under the roof covering materials such as the shingles of a roof to provide support.
Trapped behind the guttering or if it is badly weathered it needs to be replaced.
Sarking felt is to prevent dust and draughts blowing under the slates.
Roof is lined internally with sarking felt hence roof is lining is torn in places.
Types of roofing felt.
The term sarking can also refer to a pliable membrane such as a layer of felt polystyrene or reflective foil that insulates or reflects heat and can provide extra weather resistance.
Enviroseal proctorwrap roof sarking is vapour permeable allowing water vapour to pass through it whilst preventing the entry of.
Big job expensive any advice and many thanks.
Roofing felt is essential to ensure your outbuilding is ready for all weathers by providing a waterproof cover to the building s roof.
Thermoseal reflective foil roof sarking is a non permeable vapour barrier to reduce the transmission of moisture into the home and contribute r value to the roof system.
The bottom course of felt on a roof called sarking felt ensures that all of the rainwater is correctly channeled into the gutter by protecting the eaves from any wind driven rain.
It does fall off over the years.
Is this going to be a big.
Before using felt the slates were back pointed with sand lime cement and horse hair mix.
Sarking boards with a gap of 2 3 mm between each one.
Recommended for use in warmer climates.
Sarking is an english word with multiple meanings in roof construction.
