Kingspan with a warm roof the usual process is to split the insulation into two layers.
My roof doesnt have boards under the tile.
Old concrete roof tile replacements photo by rangerx istock.
Cement board also provides an additional layer over a plywood or particleboard subfloor adding stiffness to the tile.
I have lost count of the number of times i have had someone out to look at the roof and i ve spent hundreds of pounds in repair bills.
The roof tiles have all been inspected and any that were cracked or chipped replaced the ridge tiles have been repointed the mortar on the side of the roof has been repaired were necessary and there aren t any slipped or missing tiles or anything else untoward.
It was installed in 1929 to replace the original cedar shakes and has weathered hurricanes like a champ.
It is also used for the prevention of draughts and dust penetration into the roof spaces through tiles and slates and prevents damage to ceilings rotting of timbers and corrosion of plumbing.
Roof that badly needs to be replaced.
Should the plywood be replaced along with the shingles.
This can generate mold that can be hazardous to humans and animals.
Under tile sheeting is placed under the roof tiles ensuring a perfect proofing membrane for all elements which affect housings and developments.
If it is that trades people on the roof over the years have put their feet through the felt small patches can be inserted in a v shape to the width of the trusses and stapled to the roof trusses internally over the lower strip and under the upper strip.
This is a distinct advantage over plywood and drywall.
It can also cause damage to the subfloor or wood underneath the tile.
Cement board is a type of underlayment that is now standard for most tile installations but particularly for floor tile.
The primary benefit of cement board is that it doesn t break down or expand or warp if it gets wet.
I just had my roof re done but there are areas where the roof sags as if the old plywood wasn t replaced.
I have an 11 sq.
If 180mm is to be installed then 100mm board might be introduced between the rafters there has to be a minimum 25mm air gap between the insulation and the underside of the tiles or slates with an 80mm board running.
Depending on how bad the felt is i e.
There is one chimney no valleys 8 12 pitch and 30 linear ft.
My house is a 97 year old victorian with a concrete tile roof.
My roof does not have felt lining how critical is it to have felt lining the house is a 1930 s end terrace with just slate tiles on with no felt there are no leaks at present but i am wondering the cost to have this re tiled with a felt breathable membrane lining.
There will also be kooltherm k7 pitched roof board between the rafters image credit.
Water under a tile floor can be caused by a various number of things.
I have a question about the deck part of your roof.
Of fascia that needs to be replaced as well.