Sisalkraft Building Papers
Sisalkraft is a family of Building papers and vapour barriers. Available in a wide range of types and sizes. Used throughout the build, underfloor, warm roof, cladding etc.
We keep the popular range in stock, other types and sizes are available within a few days on a special order basis.
Sisalkraft 40 Breather
Economical waterproof breather membrane
Accreditation : BS 4016: 1997
Sisalkraft 40 Breather is recommended for use as a vapour permeable sheathing membrane which is water resistant and water repellent. It is used as a weatherproofing layer behind exterior cladding to provide an extra barrier.
The product meets Class 2, BS 4016: 1997 - Flexible building membranes (breather type).
Sisalkraft 40 Breather is processed from a kraft paper pulp, impregnated with water repellent chemicals. The material has a matt blue surface both sides, with smooth texture.
Technical Data
WATER VAPOUR, WATER
Water penetration tests to BS 4016: 1997 exceed requirements of 24 hours without leakage.
Vapour resistance is 0.26 MNs/g, tested to BS 3177.
HEAT
Sisalkraft 40 Breather will not be affected by extremes of temperature during installation and use (-10�C to 80�C).
STRENGTH
Tear resistance is 13-14N (BS 4016 Annex C)
Nominal weight is 130 g/m2
Nominal caliper is 0.24mm
Availability
Standard Roll Size
1000mm x 100m
Roll Weight
11.6 kg
All information given in good faith and is believed to be accurate.
Sisalkraft 728
Heavy duty DPM building paper
Accreditation : BS1521 A1F
Sisalkraft 728 is a polythene coated waterproof Building paper meeting the requirements of BS 1521 A1F. It is used as a waterproofing/ weatherproofing layer in Building construction, and for temporary protection and separation where a tough, water resistant material is needed. The black polythene surface gives excellent water resistance and low adhesion to other building materials- can be used as a separating layer and shuttering liner in concrete work.
Sisalkraft 728 is a polythene coated waterproof building paper, with two plies of kraft paper laminated together with bitumen, reinforced with glassfibre yarn and coated on one face with black polyethylene.
Appearance
Sisalkraft 728 is a flexible. tough material with one face of unbleached (brown) paper, the other face coated with black polythene, and reinforced with a regular, grid pattern woven reinforcing.
Technical Data
Basis Weight (g/m2)
327 g
Tensile Strength
-MD
16.5 kN/m
-CD
9.0 kN/m
Fixing/Sitework
Store rolls before use on end on a clean, dry surface protected from the weather. Material should not be unrolled if the temperature is below 5�C as the adhesive will become brittle and may crack. Depending on application, Sisalkraft 728 is laid over flat surfaces or fixed to studwork, formwork or similar. It may be stapled, nailed or fixed with self-adhesive tapes. Use the membrane with the black coated side exposed for improved water resistance or from release from concrete in shuttering lining.
Sisalkraft 728 can be folded, and cut easily using a knife or scissors. The bitumen adhesive will tend to seal around nails or other fixings to maintain a water and water vapour tight construction. Edges should be overlapped by at least 100mm, and if the installation is intended to be waterproof or water vapour-tight the seams should be welted or taped using a durable self-adhesive polymer tape.
Sisalkraft 728 is not intended as a primary weatherproofing layer and should be covered by other materials if wet or windy weather is expected.
Availability
Standard Roll Size
1000mm x 25m
Roll Weight
8 kg
All information given in good faith and is believed to be accurate.
Sisalkraft 420 Vapour Check
Waterproof underlay / separation layer & vapour check
Condensation resistant non slip surface
Accreditation : BS 1521 A1F
Sisalkraft 420 is a waterproof Building paper meeting the requirements of BS 1521 A1F. It is used as a waterproofing/weatherproofing layer in Building construction, as a vapour check membrane and for temporary protection and separation where a tough, water resistant material is needed.
Construction
Sisalkraft 420 is a traditional waterproof building paper, with two piles of wet-strength pure kraft paper laminated together with bitumen, reinforced with glassfibre yarn.
Technical Data
Basis Weight (g/m2)
313g
Tensile Strength
-along roll
19.0 kN/m
-across roll
9.0 kN/m
MVTR
3.0 g/m2/d
Vapour Resistance
68 MNs/g
Fixing/Sitework
Store rolls before use on end on a clean, dry surface protected from the weather. Material should not be unrolled if the temperature is below 5oC as the adhesive will become brittle and may crack. Depending on application, Sisalkraft 420 is laid over flat surfaces or fixed to studwork, formwork or similar. It may be stapled, nailed or fixed with self-adhesive tapes.
Sisalkraft 420 can be folded, and cut easily using a knife or scissors. The bitumen adhesive will tend to seal around nails or other fixings to maintain a water and water vapour tight construction. Edges should be overlapped by at least 100mm, and if the installation is intended to be waterproof or water vapour-tight the seams should be welted or taped using a durable self-adhesive polymer tape.
Sisalkraft 420 is not intended as a primary weatherproofing layer and should be covered by other materials if wet or windy weather is expected.
Availability
Standard Roll Size
1000mm x 25m
1000mm x 50m
1250mm x 50m
1500mm x 50m
All information given in good faith and is believed to be accurate.
