preservative treatment selector - lonza wood protection · 2019. 8. 7. · treatment code - uk only...
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PRESERVATIVE TREATMENT SELECTORIssued August 2019
Issued July 2019
VacsolTM
TREATED TIMBER
PRESSURE TREATED TIMBER
TanalithTM
Selecting a timber preservative treatment is an important decision in ensuring a reliable and appropriate preservative treated timber is supplied for a particular project. The choice is dependent on various factors such as the eventual end use location of the treated timber, the final appearance of the treated timber, the availability of ready treated stocks of timber or the dimensional aspects of the timber components which may be affected by a treatment.
Specific details on the choice of treatments by Use Class (EN 335) are available in a separate document.
Following is a summary of the main high and low pressure preservative treatments that best fits your needs with a particular timber component in mind.
1. Internal Building/Joinery Timbers above Damp Proof Course - Click here
2. External Building Timbers above Damp Proof Course - Click here
3. External Joinery - Click here
4. Plywood - Click here
5. Fencing and Outdoor Timbers Above Ground Contact - Click here
6. Fencing and Outdoor Timbers In Ground Contact - Click here
7. Heavy Duty Industrial Timbers - Click here
1. INTERNAL BUILDING/JOINERY TIMBERS ABOVE DAMP PROOF COURSE
DESCRIPTION USE CLASS TREATMENT OPTIONS
Roof Timbers (dry) UC1
• Pitched roofs • Joists
• Rafters • Sarking
• Purlins • Wall plates
Roof Timbers (hylotrupes / longhorn beetle area) UC1 or UC2
• Pitched roofs (not original) • Joists
• Rafters • Sarking
• Purlins • Wall plates
Roof Timbers (risk of wetting) UC2
• Flat Roofs • Joists
• Rafters • Sarking
• Purlins • Wall plates
• Exposed beams • Enclosed beams
• Tiling battens
External Walls/Ground Floor Joists UC2
• Timber frame material • Sole plates
• External walls • Ground floor joists
Specification Clauses are available as separate documents.
Desired Service Life
All these timbers will be treated to a Desired Service Life of 60 years.
Choice of TreatmentsThe choice of either TANALITH or VACSOL treatment will depend to a large extent on the final colour of the treated timber.TANALITH treated timber has an initial pale green colouration. VACSOL treated timber maintains its natural colour.
VACSOL treatment will also better maintain the dimensional stability of the treated timbers.
Preservative Treatment Selector
PRESERVATIVE TREATMENT SELECTORIssued July 2019
1. INTERNAL BUILDING/JOINERY TIMBERS ABOVE DAMP PROOF COURSE (continued)
Treatment Code - UK only
For TANALITH treated timber, specify TE/BI.
For VACSOL treated timber, specify VA1.
For TANALITH treated tiling battens, specify TE/TB.
For TANALITH treated sole plates, specify TE/BX.
For VACSOL treated sole plates, specify VA3.
Back to list of timber components.
2. EXTERNAL BUILDING TIMBERS ABOVE DAMP PROOF COURSE
DESCRIPTION USE CLASS TREATMENT OPTIONS
Coated Cladding UC3 Coated
Coated Soffits UC3 Coated
Coated Fascia Boards UC3 Coated
Coated Barge Boards UC3 Coated
Specification Clauses are available as separate documents.
Desired Service LifeAll these timbers will be treated to a Desired Service Life of 30 years.
Choice of TreatmentsTANALITH treated timber can be used externally without the need for a decorative coating but a coating can be added if desired.VACSOL treated timber can be used externally but must have an appropriate and well maintained coating applied to maintainthe integrity of the preservative protection.
Treatment Code - UK onlyFor TANALITH treated timber, specify TE/BX.For VACSOL treated timber, specify VA3.
DESCRIPTION USE CLASS TREATMENT OPTIONS
Uncoated Cladding UC3 Uncoated
Uncoated Soffits UC3 Uncoated
Uncoated Fascia Boards UC3 Uncoated
Uncoated Barge Boards UC3 Uncoated
Cedar Shingles UC3 Uncoated
Specification Clauses are available as separate documents.
Desired Service LifeTimbers will be treated to a Desired Service Life of 30 years.
Treatment Code - UK only
For TANALITH treated timbers, specify TE/BX.
For TANALITH treated cedar shingles, specify TE/CS.
For TANALITH treated cladding, specify TE/GFb.
For TANATONE treated timber, specify TE/BX with brown colour.
Back to list of timber components.
VacsolTM
TREATED TIMBER
PRESSURE TREATED TIMBER
TanalithTM
PRESSURE TREATED TIMBER
TanalithTM
PRESSURE TREATED TIMBERWITH BUILT-IN COLOUR
TanatoneTM
PRESERVATIVE TREATMENT SELECTORIssued July 2019
3. EXTERNAL JOINERY
DESCRIPTION USE CLASS TREATMENT OPTIONS
Coated Window Frames UC3 Coated
Coated Casements UC3 Coated
Coated Doors UC3 Coated
Coated Door Frames UC3 Coated
Coated Porches UC3 Coated
Specification Clauses are available as separate documents.
Coating
VACSOL treated joinery can be used externally but must have an appropriate and well maintained coating applied tomaintain the integrity of the preservative protection.
Desired Service Life
All these timbers will be treated to a Desired Service Life of 30 years.
Treatment Code - UK only
For VACSOL treated softwood timbers, specify VA3.
For VACSOL treated hardwood timbers, specify VA5.
Back to list of timber components.
4. PLYWOOD
DESCRIPTION USE CLASS TREATMENT OPTIONS
Plywood - humid grade UC1/2
EN 314 Part 2 bonding class 2
Plywood - exterior grade UC3*
EN 314 Part 2 bonding class 3 orWBP (Weather and Boil Proof)
* VACSOL treated plywood for UC3 situations must have an appropriate and well maintained coating applied.
Specification Clauses are available as separate documents.
Desired Service Life
TANALITH treated plywood will be treated to a 60 year Desired Service Life for Use Class 1/2 applications.
TANALITH treated plywood will be treated to a 15 year Desired Service Life for Use Class 3 applications.
VACSOL treated plywood will be treated to a 60 year Desired Service Life for Use Class 1/2 applications.
VACSOL treated plywood will be treated to a 30 year Desired Service Life for Use Class 3 Coated applications.
Choice of TreatmentsThe choice of either TANALITH or VACSOL treatment will depend to a large extent on the final colour of the treated timber.TANALITH treated timber has an initial pale green colouration. VACSOL treated timber maintains its natural colour. VACSOLtreated plywood used in Use Class 3 will also require an appropriate and well maintained coating applied to maintainthe integrity of the preservative protection.
Treatment Code - UK only
For TANALITH treated plywood for Use Class 1/2, specify TE/EPa.
For TANALITH treated plywood for Use Class 3, specify TE/EPb.
For VACSOL treated plywood for Use Class 1/2, specify VA3.
For VACSOL treated plywood for Use Class 3 Coated, specify VA3
Back to list of timber components.
VacsolTM
TREATED TIMBER
PRESSURE TREATED TIMBER
TanalithTM
VacsolTM
TREATED TIMBER
PRESERVATIVE TREATMENT SELECTORIssued July 2019
5. FENCING AND OUTDOOR TIMBER (ABOVE GROUND CONTACT)
DESCRIPTION USE CLASS TREATMENT OPTIONS
Fence Rails UC3 Uncoated
Gates UC3 Uncoated
Post Caps UC3 Uncoated
Decking Components UC3 Uncoated
Farm Buildings UC3 Uncoated
Pergolas UC3 Uncoated
Gazebos UC3 Uncoated
Playground Equipment UC3 Uncoated
Specification Clauses are available as separate documents.
Desired Service Life
All these timbers will be treated to a Desired Service Life of 15 years. A 30 year Desired Service Life is also available - Treatment
Code TE/MF.
Choice of Treatments
For a built-in brown colouration, TANATONE treated timber is recommended.
Treatment Code - UK only
For TANALITH treated timber, specify TE/GFa.
For TANATONE treated timber, specify TE/GFa with brown colour.
Back to list of timber components.
6. FENCING AND OUTDOOR TIMBERS (IN GROUND CONTACT)
DESCRIPTION USE CLASS TREATMENT OPTIONS
Fence, Gate and Deck Posts UC4
Deck Joists UC4
Garden Sleepers UC4
Agricultural Fencing Timbers UC4
Bridges UC4
Playground Timbers UC4
Retaining Wall Timbers UC4
Fresh Water Contact Timbers† UC4
Specification Clauses are available as separate documents. † Contact Lonza for latest specification details.
Desired Service LifeAll these timbers will be treated to a Desired Service Life of 15 years. A 30 year Desired Service Life is also available -Treatment Code TE/MF.
Choice of Treatments
For a built-in brown colouration, TANATONE treated timber is recommended.
Treatment Code - UK only
For TANALITH treated timber, specify TE/GFb.
For TANATONE treated timber, specify TE/GFb with brown colour.
Back to list of timber components.
PRESSURE TREATED TIMBER
TanalithTM
PRESSURE TREATED TIMBERWITH BUILT-IN COLOUR
TanatoneTM
PRESSURE TREATED TIMBERWITH BUILT-IN COLOUR
TanatoneTM
PRESSURE TREATED TIMBER
TanalithTM
7. HEAVY DUTY INDUSTRIAL TIMBERS
DESCRIPTION USE CLASS TREATMENT OPTIONS
Transmission Poles UC4
Railway Sleepers UC4
Highways Fencing (Above Ground) UC3 Uncoated
Highways Fencing (In Ground) UC4
Cooling Tower Timbers† UC4
Specification Clauses are available as separate documents. † Contact Lonza for latest specification details.
Desired Service Life
All these timbers will be treated to a Desired Service Life of 30 years.
Treatment Code - UK only
For TANALITH treated Highways Fencing out of ground contact, specify TE/MF.
For TANALITH treated Highways Fencing in ground contact, specify TE/HD.
For TANALITH treated Heavy Duty Industrial, specify TE/HD.
Back to list of timber components.
DESIRED SERVICE LIFEThe Desired Service Life does not provide a guarantee of performance but an indication of the expectation against which therecommendations for timber treatment are drawn up, assuming good design and normal conditions of use.
PRESERVATIVE TREATMENT SELECTORIssued July 2019
PRESSURE TREATED TIMBER
TanalithTM
© Copyright 2019 Lonza Wood Protection.™Tanalith, Tanatone and Vacsol are registered trademark of Arch Timber Protection, a Lonza company.Disclaimer: Whilst every attempt has been made to ensure the accuracy and reliability of the information contained in this document, Lonza Wood Protection gives no undertaking to that effect and no responsibility can be accepted for reliance on this information.Lonza Wood Protection updates its literature as and when necessary. Please ensure you have an up to date copy.Use wood preservatives safely. Always read the label and product information before use.
Lonza Wood Protection
Wheldon Road, Castleford, West Yorkshire, WF10 2JT.
Tel: +44 (0)1977 714000 Fax: +44 (0)1977 714001
E-Mail: timberprotectionadvice.ukca@lonza.com www.lonzawoodprotection.com/eu
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