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UNIVERSITY OF HAMBURG

Institute for Technical and Macromolecular Chemistry

Digest from : Test Certificate dated 26.07.91 -Testing the Weed Resistance of EVERLAST-ROOFSKIN ( DIN 4062 )

1. Case in Hand

Date of receipt of application
22/05/1991

Date of receipt of test material
24/05/1991

2. Type and description of test material EVERLAST(R)ROOFSKIN

3. Contents of application
To test EVERLAST(R)ROOFSKIN for Weed Resistance according to DIN 4062 standards.

4. Test procedure
The test was conducted in accordance with DIN 4062, "Sealants for concrete construction elements, testing and application, Section 5.7"

No. of test samples:
4

Thickness of samples:
between 1,33 mm and 1,9 mm
average 1,5 mm
(10 measurements taken)

Lenght of growth
6 Weeks
(27/05/91 to 08/07/1991)

Requirement
The sealant must prevent roots from growing through it.

5. Test result After 6 weeks, the flowerpots were opened and the material placed inside them was inspected for penetrated roots.The lupin roots had neither grown on top of the EVERLAST(R)ROOFSKIN, nor had they grown into it.Picture2
The 2 cms thick comparison slab of 85/40 bitumen showed penetration growth in numerous places.Picture1

As a result of the test result, EVERLAST(R)ROOFSKIN can be classified as "root resistant".

Pictures
Picture 1: Bitumen layer after end of test (6 weeks )
Picture 2: EVERLAST(R)-layer after end of test ( 6 weeks )

Referenzen
UNIVERSITY OF HAMBURG -Institute for Technical and Macromolecular Chemistry
Dr. Gerd Schwarz
Bundesstrasse 45
2000 Hamburg
Germany


UNIVERSITY OF HAMBURG Institute for Technical and Macromolecular Chemistry Digest from : Test Certificate dated 26.07.91 -Testing the Weed Resistance of EVERLAST-ROOFSKIN ( DIN 4062 )
1. Case in Hand		Date of receipt of application 22/05/1991 Date of receipt of test material 24/05/1991
2. Type and description of test material		EVERLAST(R)ROOFSKIN

3. Contents of application		To test EVERLAST(R)ROOFSKIN for Weed Resistance according to DIN 4062 standards.

4. Test procedure		The test was conducted in accordance with DIN 4062, "Sealants for concrete construction elements, testing and application, Section 5.7" No. of test samples: 4 Thickness of samples: between 1,33 mm and 1,9 mm average 1,5 mm (10 measurements taken) Lenght of growth 6 Weeks (27/05/91 to 08/07/1991) Requirement The sealant must prevent roots from growing through it.

5. Test result		After 6 weeks, the flowerpots were opened and the material placed inside them was inspected for penetrated roots.The lupin roots had neither grown on top of the EVERLAST(R)ROOFSKIN, nor had they grown into it.Picture2 The 2 cms thick comparison slab of 85/40 bitumen showed penetration growth in numerous places.Picture1 As a result of the test result, EVERLAST(R)ROOFSKIN can be classified as "root resistant".

Pictures		Picture 1: Bitumen layer after end of test (6 weeks ) Picture 2: EVERLAST(R)-layer after end of test ( 6 weeks )

Referenzen		UNIVERSITY OF HAMBURG -Institute for Technical and Macromolecular Chemistry Dr. Gerd Schwarz Bundesstrasse 45 2000 Hamburg Germany