URD, URN, i.e. roughly trimmed stones
(limestone bricks with roughly trimmed surface)
1.1.Made of weatherproof Ungru limestone,
which is broken mechanically (without
blasting) from limestone quarries in Ridala
rural municipality, Lääne County.
1.2.Ungru limestone is a mixture of grey
and yellow tones occasionally the
stones may also be in brownish-yellow,
yellowish-brown, bluish-grey and other
tones. The stones are with a layered structure.
Description of the product, dimensions
2.1.The front side of U-rondo line stone
URD is manually processed, the rest of
the sides are cut with a saw.
2.2.In addition to line stones, corner
stones (URN) are also available, which
in addition to manually processed front
side also have a manually processed end.
2.3.The colour of the stones is casually
chosen mixture of grey and yellow, but
the carefully selected grey or yellow
tones are also available (NB! Yellow stones
may not always be available; the supply
depends on the goods in stock). The stones
may but do not need to have a pattern.
The selection of pattern is not performed.
row height 90 mm
the length of stones can be chosen
in the range between 300500 mm
the thickness (depth) of the layer
is 30, 40 or 60 mm, to which the dimensions
of the rough trimming must be added.
2.5.Stones with special dimensions and
with fixed length are also available for
URD 90-30-vp (line stone, height 90 mm,
thickness 30 mm, variable length)
URN 90-60-vp (corner stone, height 90
mm, thickness 60 mm, variable length)
2.7.Permitted tolerances for all dimensions
are +/- 2 mm.
2.8.Sawed surfaces must not be visible
on the roughly trimmed sides of the stones.
2.9.The stones may not have consistent
cracks (NB! Not to be mistaken for the
grooves of mineral calcite!).
2.10. After installation there may be
some colour changes on the stones (brownish
lines around the stone), which will later
2.11. U-rondo line stones are sold by
running metre, corner stones by piece.
2.12. If the stones are installed with
10 mm joints, it takes 10 running metres
to cover 1 square metre.
Information that must be indicated
in an order:
3.1.Dimensions, free or fixed length
3.3.Whether and how many corner stones
3.4.Place of use either indoors
Possible places of usage:
4.1.For finishing the plinths and facades
4.2.For finishing fences and walls
4.3.For constructing and finishing fence
4.4.For finishing fireplaces and internal
5.1.We recommend ordering installation
works from Ungru Paekivi OÜ, who
will give a 2-year warranty to both the
material and the installation.
5.2.When performing installation works
yourself, we advise using lime mortar,
which is made of clean (washed) sand and
clean water. We do not recommend using
Portland cement, which may cause the stones
to change their colour.
5.3.Ready-made mortars or mixtures of
adhesive intended for the installation
of natural stones may also be used when
installing the stones.
5.4.Attention should be paid on making
a proper hydroinsulation.