IM building an extention. how do i tie into .....,

yoloc

Im building an extention for a family member and will be doing all the work myself. Have laid the foundations last year and only getting around to starting the blockwork now but hoping to get it all finished in the coming months.

While laying the block today i have run into a problem. What i was thinking of doing to tie the new blockwork into the cottage was to hammer in metal L-ties into the exciting cottage with steel nails. The steel nails are just bouncing of the wall! I was half expecting this anyway knowing that the cottage was built in stone/cement (or lime) Next i got my heavy duty jack hammer/drill out and tried to drill a hole for some raw plugs so i could screw them on. Still no luck. I managed to get a half inch in with the drill and that took me about an hour.

What im wanting to know is, can i just build up flush to the cottages and put a plastering bead thats used for an expansion joint in terraced houses. I have worked on tieing extentions onto houses before but have never came across this problem. I was even thinking of hiring a hilti gun out and trying to shoot hilti nails into it but i think they will just bend seeing as its hard rock ill be firing into.


All suggestions welcome

wirehairmax

yoloc wrote: »

Im building an extention for a family member and will be doing all the work myself. Have laid the foundations last year and only getting around to starting the blockwork now but hoping to get it all finished in the coming months.

While laying the block today i have run into a problem. What i was thinking of doing to tie the new blockwork into the cottage was to hammer in metal L-ties into the exciting cottage with steel nails. The steel nails are just bouncing of the wall! I was half expecting this anyway knowing that the cottage was built in stone/cement (or lime) Next i got my heavy duty jack hammer/drill out and tried to drill a hole for some raw plugs so i could screw them on. Still no luck. I managed to get a half inch in with the drill and that took me about an hour.

What im wanting to know is, can i just build up flush to the cottages and put a plastering bead thats used for an expansion joint in terraced houses. I have worked on tieing extentions onto houses before but have never came across this problem. I was even thinking of hiring a hilti gun out and trying to shoot hilti nails into it but i think they will just bend seeing as its hard rock ill be firing into.


All suggestions welcome

Are you taking the piss? You're building an extension for someone else and you don't know how to tie in blockwork?
I'm not going to say too much more but this kind of crap is what I'm coming up against and pricing against every week. You shouldnt be allowed near a site. Hopefully the amended building regs will go some way towards doing away with chancers like you. Can't wait to hear how you plan to do the roof etc

yoloc

wirehairmax wrote: »

Are you taking the piss? You're building an extension for someone else and you don't know how to tie in blockwork?
I'm not going to say too much more but this kind of crap is what I'm coming up against and pricing against every week. You shouldnt be allowed near a site. Hopefully the amended building regs will go some way towards doing away with chancers like you. Can't wait to hear how you plan to do the roof etc

I have worked in this game for 25 years, its just ive never tied an extention into an old cottage. Do you honestly think im going to turn down all this work over a minor stumbling block when i know im skilled for this kind of work.I will go and find out how its done before i continue working on. This extention will still be standing long without any problems long after you and i leave this place. As for you, dont be telling me that youve never came across a stumbling block on jobs and went and asked someone for information so you can finish it. If this building was a modern building, id have took some block out and tied it in accordingly. I could go ahead and get the con saw out and start cutting the shape of blocks out, and tie the new blocks in, however i was hoping there was another easy option around this.

For your information, i was working on jobs in the uk in the early 90s for the local housing associaton and the engineer had us tie extentions in with metal strips screwed into the existing house then some sort of L tie slotted into it. I was hoping i could have done this with this job.

So mr know it all, seeing as you know what your doing, id love to hear how you'd do it.

Gumbo

Toothing it in is usually the best option, but have you asked an engineer for advice? Maybe he could advise on a newer easier method, and maybe he could also thrown an eye on the foundations which you laid a year ago, just to make sure.

yoloc

kceire wrote: »

Too thing it in is usually the best option, but have you asked an engineer for advice? Maybe he could advise on a newer easier method, and maybe he could also thrown an eye on the foundations which you laid a year ago, just to make sure.

Just to be sure lol Fcuk me, even the founds are in question now lol. Ive probably laid over 100 foundations in my years and never once had a problem.


This forum is great wee forum, come asking for advice then get ripped to pieces lol

Gumbo

yoloc wrote: »

Just to be sure lol Fcuk me, even the founds are in question now lol. Ive probably laid over 100 foundations in my years and never once had a problem.


This forum is great wee forum, come asking for advice then get ripped to pieces lol

You laid foundations a year ago. Now you want to build on them. You mentioned in your first post "all suggestions welcome"

Well obviously you only want to hear what you want to hear, so I'm out. Best advice is to talk to a professional, not some stranger on the inter web thing...

yoloc

kceire wrote: »

You laid foundations a year ago. Now you want to build on them. You mentioned in your first post "all suggestions welcome"

Well obviously you only want to hear what you want to hear, so I'm out. Best advice is to talk to a professional, not some stranger on the inter web thing...

The foundations are ok, no frost damage seeing as they where left to the elements all year. Sure if they cracked, sure i could have superglued them back together lol. ( Thats a joke incase you uptight boys think im serious lol)

4Sticks

yoloc wrote: »

Just to be sure lol Fcuk me, even the founds are in question now lol. Ive probably laid over 100 foundations in my years and never once had a problem.


This forum is great wee forum, come asking for advice then get ripped to pieces lol

Oh no you are great builder

Your family member does not deserve you.

wirehairmax

Another London legend! Mcalpines fusillers!!!! In the "game" for 25 years! I've met a lot of these guys over the past number of years and alarm bells always go off when I hear this sort of talk. "Know it alls" that can't read a tape and couldn't be trusted with Lego. They can never be told how to do anything and seem to think that pushing a wheelbarrow across a site in London qualified them as some sort of master builder. The only thing a lot of them were qualified to be was an extra on "only fools and horses"

martinn123

yoloc wrote: »

Just to be sure lol Fcuk me, even the founds are in question now lol. Ive probably laid over 100 foundations in my years and never once had a problem.


This forum is great wee forum, come asking for advice then get ripped to pieces lol

We'll I wonder what you were thinking in posting in this Forum
Maybe that you had a Construction issue, and as it's a Construction Forum, that you might get some pointers.
Sure we have had Self Build threads that lasted a year or more, and all sorts of issues were raised, and sorted.
But no, your previous posts were examined, to get your pedigree, you see, and then, as you say, you get ripped to pieces.
This Forum is in need of some Moderation, which is sadly missing for the past few weeks.


OK back to these new regs,

4Sticks

martinn123 wrote: »

OK back to these new regs,

Which the OP wants to find loopholes in .

And compete then against you.

martinn123

4Sticks wrote: »

Which the OP wants to find loopholes in .

And compete then against you.

We'll so far, from his posts, he is building an extension for a relative, and perhaps a new house for himself.
"Loopholes" have not been mentioned ( but I have not trawled through his back catalogue of Posts)
Sure we have all got competition, part of life

4Sticks

Just click on the link at post no 8 of this thread. The great thing about the interweb is - help / don't help who you like.

4Sticks

martinn123 wrote: »

But no, your previous posts were examined

This can be done anytime by anyone here to anyone here and so I have to say it amuses me to see you now post

martinn123 wrote: »

This Forum is in need of some Moderation, which is sadly missing for the past few weeks.

martinn123

4Sticks wrote: »

This can be done anytime by anyone here to anyone here and so I have to say it amuses me to see you now post

Guess you don't miss em, till there gone

martinn123

4Sticks wrote: »

Just click on the link at post no 8 of this thread. The great thing about the interweb is - help / don't help who you like.

Yes you have learned a lot, since you joined Boards in Sept.
If you don't want to post a helpful reply, move on, maybe to AH

4Sticks

Thanks. Mine's a g+t

Micky Dolenz

Mod

Enough of the bickering please. Lets get back on topic.

yoloc

Even after all the bickering, no one has suggested anything lol. I think some just needed to let of a bit of steam and picked this thead for it. Would be interested to hear how other builders would tie in this extention to the cottage.

Gumbo

yoloc wrote: »

Even after all the bickering, no one has suggested anything lol. I think some just needed to let of a bit of steam and picked this thead for it. Would be interested to hear how other builders would tie in this extention to the cottage.

Not many builders will give advice to a stranger on the internet about an issue they have never seen.

Have you contacted masonry fixings for technical advice.

PaulieBoy

You could look at attaching the starter bars with epoxy resin.

4Sticks

You could hire a structural engineer to design inspect and certify the works for your relative.

Safehands

PaulieBoy wrote: »

You could look at attaching the starter bars with epoxy resin.

Good suggestion. Try coring a couple of holes, min 75mm deep, and insert some bars using an epoxy rather than the more popular polyester resin, which doesn't stick very well to cored holes.

BryanF

Safehands wrote: »

Good suggestion. Try coring a couple of holes, min 75mm deep, and insert some bars using an epoxy rather than the more popular polyester resin, which doesn't stick very well to cored holes.

ive used this method when fixing a new extension foundations to existing concrete foundations but isn't the issue here that the OP is having difficulty drilling into an old stone wall ?

Safehands

BryanF wrote: »

ive used this method when fixing a new extension foundations to existing concrete foundations but isn't the issue here that the OP is having difficulty drilling into an old stone wall ?

Yes but a core drill will tackle it a lot better than a percussive drill.

yoloc

Will i tie it in every 2nd course or every course and will i just bed in into the motar. Will i get away with using 12.5 mm stater bars, same thickness as the motar bed.

Safehands

yoloc wrote: »

Will i tie it in every 2nd course or every course and will i just bed in into the motar. Will i get away with using 12.5 mm stater bars, same thickness as the motar bed.

I don't think you need to tie every course, but I would recommend Stainless or galvanised bars, probably about 10mm dia.

BryanF

yoloc wrote: »

Will i tie it in every 2nd course or every course and will i just bed in into the motar. Will i get away with using 12.5 mm stater bars, same thickness as the motar bed.

Safehands wrote: »

I don't think you need to tie every course, but I would recommend Stainless or galvanised bars, probably about 10mm dia.

i would recommend you get a structural engineer

Safehands

BryanF wrote: »

i would recommend you get a structural engineer

Always a good idea.

scwazrh

Even if you manage to tie into the stone work , are you not concerned about settlement / movement control between the two different masonry substrates?

And to be fair , Ive never come across anything that I couldn't drill with the right drill bit

yoloc

scwazrh wrote: »

Even if you manage to tie into the stone work , are you not concerned about settlement / movement control between the two different masonry substrates?

And to be fair , Ive never come across anything that I couldn't drill with the right drill bit

What would you suggest doing for movement control. This cottage is sitting on good solid groundso cant see much problems with movement. I know every building moves but the better the ground, isnt it less movement.