Insulating a Victorian Attic with no eaves

NobodyImportant

Howdy All,

Moving into a house built in the 1860/70's by Christmas all going well. Survey noted an attic devoid of insulation, but also no eaves for ventilation.

We are moving from a standard 3 bed semi with our baby and I want to warm this house up quick smart (whilst paying respects to the fact the house has no DPC and needs ventilation of some sort).

Surveyor noted in the report that you cant just whack in insulation into the Attic, that it needs ventilation in it first.

Why is this? Dry Rot? Wet rot from damp air? Is it a big/expensive job to go putting in vents in between slates?

Thanks

BryanF

yes no ventilation means possible dampness, leading to rot, leading to structural damage.

Not sure of the price

you must get guys that are used to refurbishing old buildings - because things often go wrong when such buildings are altered.

I would contact a conservation architect and ask for a list 3 of roofers that are suitable and get 3 quotes. its a relatively small job but must be done sensitively to the buildings existing construction methods and materials.

put in the vents above proposed insulation level, ensure cross flow of ventilation before installing natural insulation (opt for sheeps wool, hemp or cellulose batts if possible) ie the best 'breathable' material, that can absorb and realise moisture..

NobodyImportant

Thanks a million for your advice. Good point on the breathable materials, must try tracking down at a decent price. I can do the insulating myself, but will get a pro in to do the vents.

I hope they arent expensive, we have used the last of our savings to buy the house.

NobodyImportant

One more Q.

If i insulate up to the height of the ceiling joists, and then over them, is this ok as long as I used a breathable and moisture breathable material?

Thanks,.