Timber Treatment


Rotafix products developed in conjunction with ACS Preservation.

 

Dry Rot, How to Treat It.

Identify and remove the source of moisture to ensure that your repair is not compromised by the same issue.

Ensure there is adequate ventilation and humidity control.

Cut out the decayed wood, where it is structurally weak until you find sound timber.

Apply Ecobor II Gel to end grains and any susceptible surfaces

Apply Borotreat 10P, dissolved in water, by spray to timber and masonry

Apply Boracol B40/1 and Boron Rods to surrounding timbers at least 300mm in all directions from the limits of the attack and to all timbers above 20% moisture content: use holes in a prescribed pattern as supplied by Rotafix.

Replace the damaged timber using a Rotafix Timber Resin Splice or cast a new end using TG6 timber grout.

How to prevent Dry Rot

Prevent the ingress of moisture by eliminating penetrating and rising dampness or your repair will be compromised by the same issue as the original timber.

Treat vulnerable timbers (those above 18% moisture content) and those subject to seasonal dampness (e.g. window and door frames, wall plates) with Boron Rods, Boracol B40/1 Paste and Ecobor II GEL. To prevent surface spread apply Dry Rot Paint, a biocidal paint that can be applied to timber and masonry. BRE testing proves that Dry Rot will not 'walk across' surfaces coated with this paint.


To avoid leaving timbers that are drying out vulnerable to Dry Rot, cut back wet rot damage and dry out/treat as above.

How to treat embedded timbers - lintels, wall plates, bonding timbers

Ensure the timbers are suitable for treatment

Drill a pattern of holes in the timber, typically shown in the wall plate opposite.
 

Drill within 25mm of the back face and ensure that the holes are free of debris.

Inject a small volume of Boracol B40/1 Paste into the hole and then push home a Boron Rod of an appropriate length.

Repeat until the hole is filled, but leaving an adequate head clearance space to allow the hole to be sealed with a wooden dowel or filler.

 Wet Rot and How to Treat It

Identify and remove the source of moisture that has given rise to the issue.

Ensure there is adequate ventilation to allow the area to breath.

Cut out any decayed wood, where it is structurally weak until sound timber has been established.

Apply Ecobor II Gel to end grains and any susceptible surfaces

Apply Boracol B40/1 Paste and Boron Rods to timbers in contact or embedded in masonry (using holes in a prescribed pattern supplied by Rotafix)

Replace the damaged timber using Timber Resin Splice or TG6 Timber Grout Repair.

How to treat joinery - window frames, door frames


Drill a pattern of holes in the timber frames, which are most susceptible to water ingress and then decay.

Drill within 25mm of the back face and ensure that the holes are free of debris.

Inject a small volume of Boracol B40/1 Paste into the hole and then push home a Boron Rod of an appropriate length.

Repeat until the hole is filled, but leaving an adequate head clearance space to allow the hole to be sealed with a wooden dowel or filler. 

 

How to treat embedded timbers - lintels, wall plates, bonding timbers

Ensure the timbers are suitable for treatment

Drill a pattern of 9mm diameter holes in the timber, typically shown in the wall plate opposite.

Drill within 25mm of the back face and ensure that the holes are free of debris.

Inject a small volume of Boracol B40/1 Paste into the hole and then push home an 8mm diameter Boron Rod of an appropriate length.

Repeat until the hole is filled, but leaving an adequate head clearance space to allow the hole to be sealed with a wooden dowel or filler. 

How to treat fence posts

Drill a 13mm diameter hole at 45 degrees at the ground line, to various depths, depending on the size of the post.

- 4 inch x 4 inch (100mm x 100mm) - depth of hole 110mm

- 3 inch x 3 inch (75mm x 75mm) - depth of hole 90mm

DO NOT DRILL THROUGH THE OPPOSITE SIDE OF THE WOOD

Insert a 12mm x 50mm Boron Rod into the hole and push fully down to the bottom of the hole

Ensure an adequate head space before an angled plastic plug is inserted and hammered in securely

For new posts insert Boron Rods apply one coat of bitumen paint or equivalent around the base of the post, before backfilling the excavation hole.

 

Woodworm and How to Treat It

Mild damage - treat with Borotreat 10P dissolved in water

Moderate damage - de-frass & treat as above, and with Ecobor II Gel

Use Consolidating Liquid  to fill any holes and runs

Severe damage - cut out damaged sections, repair and treat with Borotreat 10P , Ecobor II Gel and insert Boron Rods. Then rebuild using Timber Resin Splice or TG6 Timber Grout

 How to treat Death Watch Beetle

Probe and drill to check the extent of the decay to ensure timbers are suitable for treatment

Remove frass, cut and rake out decay to leave sound timber only

Make repairs to re-establish the shape and structural integrity

Inject Ecobor II through the emergence holes or via predrilled 3mm diameter holes, using a Microdrill Adapter

Apply Ecobor II by brush to all surfaces, including end grain.

Check annually until no more flight holes appear. Re-treat if further fresh activity appears.

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Welcome to Rotafix Ltd | Timber Preservation Treatments - Resiwood

Rotafix Ltd, Rotafix House, Hennoyadd Road, Abercraf, Swansea, UNITED KINGDOM, SA9 1UR
Phone: +44 (0)1639 730481 Email: sales@rotafix.co.uk

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