Looking at a a house with view to purchase. It has a high wall around the
carden. seems in good order - just a few spalled bricks on the top - but I
have seen some in same road a lor worse,
Built of normal facing bricks - top row has a tile under.
I was wondering if there is any substance I could paint on the top to
reduce moisture penetration and frost damage.

On 10/05/15 13:54, DerbyBorn wrote:
Looking at a a house with view to purchase. It has a high wall around the
carden. seems in good order - just a few spalled bricks on the top - but I
have seen some in same road a lor worse,
Built of normal facing bricks - top row has a tile under.
I was wondering if there is any substance I could paint on the top to
reduce moisture penetration and frost damage.


Some sort of brick sealant? The sort sold in the sheds and builders
merchants?

On Sunday, 10 May 2015 13:54:51 UTC+1, DerbyBorn wrote:
Looking at a a house with view to purchase. It has a high wall around the
carden. seems in good order - just a few spalled bricks on the top - but I
have seen some in same road a lor worse,
Built of normal facing bricks - top row has a tile under.
I was wondering if there is any substance I could paint on the top to
reduce moisture penetration and frost damage.

Anything painted on will soon let more water in than out. Tile, slate, etc are more effective.


NT

"DerbyBorn" wrote in message
2.236...
Looking at a a house with view to purchase. It has a high wall around the
garden. seems in good order - just a few spalled bricks on the top - but I
have seen some in same road a lot worse,
Built of normal facing bricks - top row has a tile under.
I was wondering if there is any substance I could paint on the top to
reduce moisture penetration and frost damage.

I use this...it does last about seven years .......

http://www.decoratingwarehouse.co.uk...Fe_LtAodHCgAJA

I take it the tile under the 'coping' course was to stop rain water
penetrating downwards ........?..walls survive better with a proper DPC
course under copings to stop rain water getting into them ......also I
would check if the wall has been built properly with engineering brick at
ground level and not a horizontal DPC ......

DerbyBorn wrote in
2.236:

Looking at a a house with view to purchase. It has a high wall around
the carden. seems in good order - just a few spalled bricks on the top
- but I have seen some in same road a lor worse,
Built of normal facing bricks - top row has a tile under.
I was wondering if there is any substance I could paint on the top to
reduce moisture penetration and frost damage.


Just looked again - the side wall does not have the tiles under the top
course.

"DerbyBorn" wrote in message
2.222...
DerbyBorn wrote in
2.236:

Looking at a a house with view to purchase. It has a high wall around
the carden. seems in good order - just a few spalled bricks on the top
- but I have seen some in same road a lor worse,
Built of normal facing bricks - top row has a tile under.
I was wondering if there is any substance I could paint on the top to
reduce moisture penetration and frost damage.


Just looked again - the side wall does not have the tiles under the top
course.

is that the part that is blowing ? ....

In article 6,
DerbyBorn writes:
Looking at a a house with view to purchase. It has a high wall around the
carden. seems in good order - just a few spalled bricks on the top - but I
have seen some in same road a lor worse,
Built of normal facing bricks - top row has a tile under.
I was wondering if there is any substance I could paint on the top to
reduce moisture penetration and frost damage.

How is the top of the wall formed?
Does it have capping with a drip strip to shed water away from the
wall faces?

Applying coatings can make things worse, by trapping moisture inside
the wall. Wall must still be able to breath.

Any idea how old the wall is? If it's relatively new and spalling,
that might also point to it having been built with bricks which are
too absorbent. Garden walls where both sides are exposed need lower
absorbency bricks that house walls, where only one side is exposed
(and the other side used to get some heating, before super-insulated
homes).

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

(Andrew Gabriel) wrote in
:

In article 6,
DerbyBorn writes:
Looking at a a house with view to purchase. It has a high wall around
the carden. seems in good order - just a few spalled bricks on the
top - but I have seen some in same road a lor worse,
Built of normal facing bricks - top row has a tile under.
I was wondering if there is any substance I could paint on the top to
reduce moisture penetration and frost damage.

How is the top of the wall formed?
Does it have capping with a drip strip to shed water away from the
wall faces?

Applying coatings can make things worse, by trapping moisture inside
the wall. Wall must still be able to breath.

Any idea how old the wall is? If it's relatively new and spalling,
that might also point to it having been built with bricks which are
too absorbent. Garden walls where both sides are exposed need lower
absorbency bricks that house walls, where only one side is exposed
(and the other side used to get some heating, before super-insulated
homes).


Update. Plain wall- no tiles so no drip strip - built 1988.

"DerbyBorn" wrote in message
2.236...
Looking at a a house with view to purchase. It has a high wall around the
carden. seems in good order - just a few spalled bricks on the top - but I
have seen some in same road a lor worse,
Built of normal facing bricks - top row has a tile under.
I was wondering if there is any substance I could paint on the top to
reduce moisture penetration and frost damage.


You can, but it's not going to do anything about the ones that have already
spalled.

I'd take the top few courses off, put an oversailor on each skin and an
engineering brick top, it could probably do with lowering a bit anyway if
it's quite high