SureCav 50

£10.75
Total Price £107.50 ex VAT Price per item £10.75 ex VAT

SureCav50 is a moulded, recycled, polypropylene panel with spacer protrusions that forms a 50mm clear cavity and allows a stone, slate, brick and flint outer skin to be built without the need of an additional block leaf. This cavity protection system ensures clean and moisture free cavities.

SureCav50 is a BBA, LABC, Premier Guarantee and NHBC accepted construction system.


Include Washers Sold in bags of 50 For timber frame (if required): 5 washers per sheet
SureCav 50
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Washers Sold in bags of 50
Total price inc. Washers Sold in bags of 50: £112.50 ex VAT

The cavity protection System

Panel size: 1200mm (L) x 450mm (H) x 50mm deep

  • Removes the need for a backing block or using wood shuttering as backing for the stone etc.
  • Cheaper to use than concrete backing blocks
  • Acts as a cavity spacer that guarantees a 50mm clear cavity
  • Guarantees that the cavity remains completely clean
  • Holds cavity wall insulation in place ensuring it works to its full efficiency
  • Can be used with a conventional block inner leaf, timber frame or SIPS
  • Ensures no water penetration from wind driven rain, enabling you to use 50mm cavities in any exposure zone
  • SureCav can now be screwed to Timber Frame buildings
  • Protect against wind driven rain

By building with the SureCav panels instead of a using a block leaf you are providing a barrier to protect from wind driven rain. The "wall" of plastic, formed by the SureCav panels not only provides an excellent surface for the construction of the stone wall but shields the cavity and inner leaf from water ingress. The unique shape of the SureCav pods directs any moisture to the outside leaf, thus protecting the fabric of the building.SureCav ensures that there is no water penetration from wind driven rain with a 50mm cavity instead of the usual 75mm required in very severe exposure zones. The barrier formed by the panels, locked together by the joining strips, will protect the structure in even the most exposed weather conditions with no height restriction.

  • Consistent clear cavity.

The SureCav50 cavity backing system is used to form a consistent 50mm clear cavity width in new masonry or timber frame constructed cavity walls of domestic and non domestic buildings and is fully BBA certified. It is our experience that a clear section of the cavity should always be present in the construction of the walls. The 50mm air gap between the outer layer of masonry and the insulation, coupled with the moisture beating design of the SureCav50 panels, will prevent any water penetration. The SureCav50 panels will also hold the insulation in place, adding to its effectiveness in preventing heat loss.

  • Guarantee clean and moisture free cavities with SureCav50!

More information and instructional videos here

Fixing: Wall ties are used, as standard, vertically every 450mm mortar course. Helical ties are most useful where additional support is required between courses and can be fixed through the flat face of the sheet. For timber frame, it is recommended that sealing washers are screwed into the back of the pods, with or without additional timber frame ties to hold the system in place prior to the construction of the outer masonry leaf.

TIMBER-FRAME STEP BY STEP INSTALLATION

First, make the corner piece. Using the bend line on the sheet, bend the flat sides together. Now bend the sheet the other way until the pods are touching, repeating this a couple of times until you have the angle you require.

Place this corner piece directly against the breather membrane of the timber-frame structure and, using the joining strips, continue to build the panels along in each direction.

If you find you need extra ties for random stonework, screw the tie into the back of the SureCav pod using a seal-washer. If you simply wish to fix the panel in place – then just use the seal- washer without the tie.

Now, fit the horizontal joining strips before starting the next row, cutting them around the timber-frame ties. It is recommended that the joints of the panels are staggered to add strength to the system. Then continue to fix the panels along the row, trimming the length to meet the corner panel.

Please note: The 900mm joining strips are to be used for the horizontal joints. Cut a long joining strip up to a wall tie and use the off-cut to start the next section. The 400mm joining strips are designed to exactly fit the vertical joints of the SureCav panel.

If you find the cut coincides with the pods, then cut a shorter length and insert a new SureCav section.

The stone wall is built directly against the panels. These SureCav panels remain in the cavity for the lifetime of the building, providing an excellent air-flow system that ensures the cavity remains free from the build-up of moisture.

BLOCK INTERNAL LEAF STEP BY STEP INSTALLATION

You first need to create the corner panel. Locate the bend line on the sheet and bend the flat sides together. Now bend the sheet the other way until the pods are touching, repeating this a couple of times until you have the angle you require

The SureCav panels are placed directly against the insulation sheet, holding the insulation in place, enabling it to work to its full efficiency.

Using the joining strips, continue to build the panels along in each direction, trimming the panels around air vents and cavity trays as necessary.

Fit a horizontal joining strip before starting the next row. The SureCav panel is fixed in place using a wall tie clip on the wall ties that are fitted as standard at 900mm centres. Note that the horizontal joining strips are cut around the wall ties and if extra ties are required for random stonework, helical ties can be fitted through the sheets of SureCav but, of course, not through the pods.

Please note: The 900mm joining strips are to be used for the horizontal joints. Cut a long joining strip up to a wall tie and use the off-cut to start the next section. The 400mm joining strips are designed to exactly fit the vertical joints of the SureCav panel.

It is recommended to stagger the joints of the panels as this will add strength to the whole system. Then continue to fix the panels along the row, trimming the length to meet the corner panel. If the cut coincides with the pods, then cut a shorter length and insert a new SureCav section.

The stone wall can then be built directly against the panels.

When building up the inner skin of block-work, always ensure that a board is placed over the cavity. It is essential that the cavity is kept free of mortar during construction.

These SureCav panels remain in the cavity for the lifetime of the building, providing an excellent air-flow system that ensures the cavity remains free from the build-up of moisture.

  • Recommended use of wall ties adjacent to doorway or reveal

  • Installing a cavity air vent with traditional building construction

  • Fixing Timber Frame Tie through the Back of a SureCav Pod

  • Details for fitting SureCav with a Catnic lintel and DPC