Ungru vant — UV

Ungru vant — UV, i.e. wall stones with a natural surface and sawed edges

  1. Material:

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.

 

  1. Description of the product, dimensions and tolerances:

2.1.The front and back side of U-vant stones are with a natural surface; the edges are broken and the two joint sides are with a sawed surface.

2.2.The stones are mainly with brownish-yellow or yellowish-brown tone; occasionally there may be also bluish-grey tones.

2.3.The selection of colour is not performed.

2.4.The stones leave an image of natural masonry; the heights of stone layers and joint thicknesses are unvaried.

2.5.Standard dimensions: row heights 4, 9, 14, 19 and 24 cm; the lengths of stones vary between 10–50 cm (mainly 20–40 cm). Thicknesses of stones are 6–12 and 12–20 cm.

2.6.Material with special dimensions is also available upon agreement.

2.7.The permitted height tolerance is +/- 2 mm.

2.8.Thicknesses and lengths of stones are variable, but remain in predetermined limits.

2.9.Thickness differences of one stone can be up to 4 cm.

2.10.  Length differences of one stone can be up to 3 cm.

2.11.  The ends of stones do not have to be straight (right-angled), but the stones may not be rectangular.

2.12.  In the extent of 90%, the thicknesses of the delivered material must remain in the predetermined thickness range; the thickness of the edges and ends of some stones may vary.

2.13.  Marking:

UV 4×6/12 (U-vant with 4 cm height and 6–12 cm thickness)

UV 9×12/20 (U-vant with 9 cm height and 12–20 cm thickness)

2.14.  The stones may not have consistent cracks (NB! Not to be mistaken for the grooves of mineral calcite!).

2.15.  After installation there may be some colour changes on the stones (brownish lines around the stone), which will later disappear.

2.16.  U-vant stones are sold by square metre. The amount of material in one package may differ from that indicated on the delivery note +/- 5%.

  1. Information that must be indicated in an order:

3.1.Dimensions

3.2.Place of use — either indoors or outside

3.3.We recommend obtaining 10–15% more material so as to compensate for the installation losses.

  1. Possible places of usage:

4.1.For finishing the plinths and facades of buildings

4.2.For finishing fences and walls

4.3.For finishing fireplaces and internal walls, etc.

4.4.For making garden paths (NB! Please make sure to indicate this information when placing the order!)

  1. Installation tips:

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.