Gap in firewall

Do_i_Diy

After just having a survey done for the sale of our home he has discovered a gap of about 6" in height between the top of the firewall and the eves in the attic to our neighbour. This is right in the top of the eves and about 3 meters in length. It will need to be fixed before the bank will release the mortgage. Any suggestions as to how to fix this, it is a really awkward place to get to, so I was hoping blocking the gap with a rockwool type material or filling in with plasterboard.
Thanks

DandelionPatrol

Bricks and mortar. 1 look and it will pass.

Rockwool is too easily displaced. Plasterboard will need too much assessment

Do_i_Diy

If I brick it up how would I get a good bond onto the roof felt and wooden eves?

flashg67

Do_i_Diy wrote: »

If I brick it up how would I get a good bond onto the roof felt and wooden eves?

May be wrong, but I don't think you need to seal it completely? My house is 10 years old and I'm sure there are small gaps between the tops of the breeze blocks and the roof.

Do_i_Diy

I'm surprised too, but the report says it needs to be built up before the bank will release funds to the purchaser, I'm sure all semi detached houses of the same design will have this same gap but what can I do?

jimbog

Brick it up - and use an angle grider to cut bricks at the right angle for the edges. It can be done in an afternoon

Do_i_Diy

I was looking at using breeze blocks that are lighter, fire standard, and can cut with a saw to fit

jimbog

Do_i_Diy wrote: »

I was looking at using breeze blocks that are lighter, fire standard, and can cut with a saw to fit

Yes, seems a good idea

martindow

I would speak to the surveyor to ask the technical details of what would be acceptable. He may well be the one asked to check it out once the work has been done.

It may also be worth posting on the diy board for their opinions.

http://forums.moneysavingexpert.com/forumdisplay.php?f=39

G_M

will this job need building regs certification?