Where to use it

Solitex Plus is an external fully windtight breathable membrane for use as a roofing underlay on pitched roofs (over 15° of pitch) and as a breather membrane on the outside of timber frame walls. The membrane can also be used to windproof the underside of an insulated suspended timber floor.  

As it is a reinforced membrane with high nail tear and pull-out resistance, it is fully compatible with blown-in insulation.

Please note: If the roof is flatter than 15° pitch, seek additional guidance from our technical team or consider using Solitex Weldano for particularly low pitch roofs of less than 10°.

What it does

Pro Clima Solitex Plus is a 4-ply roofing underlay/membrane consisting of a polypropylene fleecy backing, super-strong reinforcing mesh, a central layer of monolithic nonporous TEEE membrane and a blue polypropylene felt top layer.  It has a significantly lower resistance to moisture vapour than conventional roof underlays. This provides a dry structure with an extremely low risk of condensation forming within the roof or walls of the building.  

The monolithic windtight membrane is unaffected by preservatives, resins and oils in timber. These substances are damaging to inferior microporous membranes and cause rain water to seep through (leaching). This is because they lower the surface tension of the rain water allowing it to pass through the microscopic holes in the microporous membrane. There are no microscopic holes in Solitex plus roof membrane so it remains watertight in all circumstances. 

Pro Clima Solitex Plus is unaffected by exposure to UV and high levels of radiant heat from the sun for up to 3 months. This is ideal for protecting an unfinished building (during construction) from the elements before any tiles, protective cladding or façade are installed. 

Why we love it

The active transport of moisture via diffusion through the built-in monolithic, breathable roof membrane of Solitex Plus constantly protect the building from condensation problems, as monolithic membranes don’t require any air movement beneath and through them to transport moisture vapour to the other side.  Structural damage from condensation is a risk when an inferior microporous roofing membrane is used instead and where moisture levels on site are particularly high (i.e. during the winter season when building site moisture levels are high). 

The fleecy backing of Pro Clima Solitex Plus breathable roof membrane reduces friction for easier installation and its reinforcement gives it high nail tear resistance and robustness when construction workers walk over it during construction.

Once the overlaps,  junctions, edges and penetrations of the Solitex Plus have been adequately taped and sealed with Tescon Vana or Tescon No. 1 and appropriate roofing battens are positioned (in accordance with BS 5534), Solitex Plus can be used in any of the exposure zones throughout the UK and Ireland.

Pro Clima Solitex Plus is a tried and tested with Third Party Approved from the Irish Agrément Board Approved and is a BBA Certified membrane.

System warranty

Pro Clima provide a limited system warranty, backed-up with public liability insurance, for all airtightness system, roof and wall sealing system and construction products that they supply. A 10-year warranty is provided for these products when correctly installed in combination with approved thermal insulation materials and other Pro Clima system products. When correctly installed in combination with other manufacturers’ products (not made by Pro Clima), a 6-year warranty is provided.