Spray Foam Insulation

Refurbished masonry wall insulation (timber frame)

WALLTITE® can be applied directly onto a solid masonry wall, between 90mm or 140mm timber studs, without the need for traditional adhesion promoters or mechanical fixings.

Mechanical and electrical services can be fixed between the foam and the plasterboard.

WALLTITE® guarantees additional support and stability for the whole of the timber frame construction.

The resulting continuous insulation and air barrier system will provide a cleaner, healthier more comfortable environment for any "hard to treat" home situation.


WALLTITE® has undergone various performance tests. Certificates are available on request.

LABC RegisteredNBS Plus

Typical detail

Existing solid wall

Existing solid wall

  1. 25mm WALLTITE® behind studwork
  2. Treated timber studs set off by wall by brackets
  3. WALLTITE® CL100 insulation between and behind studwork to achieve target U-value
  4. Unventilated air space
  5. 12.5mm vapour check wallboard and skim finish

At corners of internal and external walls to rooms, set frame to external wall back from corner a minimum of 25mm and set batten to line with vapour check wall boarding to receive board end to internal wall.

Technical data

Specification Dry lining of solid masonry wall
NBS clause P10 15A
Lambda 90/90 0.025 to 0.028W/mk
Fire rating Class 1 to BS 476 Part 7
µ 61.12


Thickness of WALLTITE (mm) U-value (W/m2k)
130 0.20
100 0.25
65 0.35

Additional resources

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