WALLTITE® is used to restore the structural stability and increase the thermal resistance and airtightness of existing cavity walls, with masonry inner and outer levels, in which the conventional wall ties have corroded. It is also used in new construction where it's superior thermal performance and airtightness properties make it the perfect solution. It has excellent resistance to driving rain and can be installed in all geographical exposure zones.
WALLTITE® is ideal where the need to reduce air leakage is important. The foam seals the cavity, does not shrink or allow air to pass through it, therefore air leakage through the cavity can be reduced to zero. WALLTITE® stabilises the wall by adhering to the inner surfaces of the cavity and providing a continuous structural connection between the two leaves.
The system can also be used on random stone walls that form uneven cavities.
WALLTITE® has undergone various performance tests. Certificates are available on request.
Habitable space: plasterboard and skim/VCL with taped joints (VCL to be carefully cut and sealed around struts, ceiling joists and penetrations); batten/counter batten rafters as necessary to achieve insulation depth, confirm rafter strength sufficient to receive counter battening and boarding if required.
Loft space only, non habitable: insulated between and over rafters 7to achieve target U-value. WALLTITE® may remain exposed.
|Specification||Full fill, closed cell, cavity wall insulation and stabilisation system|
|NBS clause||F30, 10 and 150 P11, 50, 220, 230 and 24|
|Lambda 90/90||0.025 W/mK|
|Closed cell content||94.4%|
|Adhesion to brick||231k|
|Thickness of WALLTITE (mm)||U-value (W/m2k)|