Slate Roof No Insulation

I am left with from the outside inwards slates nailed onto planks about a foot wide and half inch thick nailed onto the rafters which are about 10 inches by 3 inches.

Slate roof no insulation.

The cellular glass is incompressible 100 fire safe and water resistant. Roofing felt was introduced primarily to act as a secondary barrier against wind driven snow and rain but its use also causes a reduction in air movement within the roof space particularly if the roofing felt is impervious and this effect is often compounded by the introduction of insulation. Looking to build a curved or pitched timber structure with slate roofing. I was considering spray foam but i ve done some research and it seems the underside of the slate tiles need to breathe to get rid of moisture that would otherwise accumulate in the rafters and cause rot.

A well ventilated roof space is good this stops your timbers rotting. Foamglas offers complete safety and peace of mind. Check the depth between your trusses and the slates then install the correct thickness of kingspan in the gaps allowing for a 25mm air gap between the kingspan and the slates. It had no insulation whatsoever between the plaster and the outside roof.

Similar system on first floor in the basement. Duct work is r4 2 flex off of insulated main fixed duct. Duct work sitting on the floor. Roof is the original slate from 1930 on boards.

Wet heating coil is fed from a basement boiler. Then you will require insulation that is safe from the elements. There s no insulation under there currently just the rafters and wood plank sheathing. The space between the rafters is a bit haphazard because of the age and shape of the roof.

Rafters have no insulation under slate. Answered 14th jan 2013 like 2.