1. Energy saving for solid walls with Si-Dry

2. Saving money with Si-Dry
A dry wall is a warm wall.
A study by English Heritage showed that dry walls are up to 3 times better at keeping heat in than wet walls.
Si-Dry is a deeply-penetrating, colourless waterproof coating that keeps walls dry – which means they keep heat in – saving energy – and saving you money.

3. 35% of heat loss occurs through uninsulated walls.
The problem:
35% of heat loss occurs through uninsulated walls.
Up to 35% heat loss through uninsulated walls

4. Traditional Solution:
Insulation Effective but expensive, disfiguring, and unsuitable for damp walls.

5. Si-Dry solution:
Utilise the natural insulation qualities of the masonry by keeping it dry.

6. Have the potential to be great insulators...
Masonry walls:
Have the potential to be great insulators...
Solid masonry walls are typically 9 inches thick – considerably thicker than most insulation materials
…but only when dry.

7. Insulation dampness problems:

8. Let heat escape… …just like wet clothes.
Wet walls
Let heat escape… …just like wet clothes.

9. Pores in masonry:
Stop heat escaping when dry, but allow heat to escape when filled with moisture

10. A dry wall is a warm wall:
An English Heritage study showed wet walls conducted 1.5 to 3 times as much heat as dry walls.

11. Making walls warm and dry with Si-Dry

12. What is Si-Dry?
Si-Dry is a breathable, silicone based cream that is applied to masonry by brush, roller, or spray. It penetrates deeply into the masonry producing a colourless water-repellent layer
Key features:
Water-repellent
Colourless
Breathable
Deeply-penetrating
Long-lasting (>20 years)

13. Penetrates into masonry to make it water-repellent
Applied by brush, roller or spray:
Penetrates into masonry to make it water-repellent

14. Deeply penetrating:
In-depth protection – bridges minor imperfections in masonry and increases service life

15. Tested to BS EN ISO 15148:2002 on brick, sandstone and mortar.
Suitable for brick, mortar & sandstone
Tested to BS EN ISO 15148:2002 on brick, sandstone and mortar.
Note: Not suitable for Limestone. Your Si-Dry contractor will be able to provide an alternative treatment for Limestone using Si-Dry LS Liquid

16. Will not change the natural appearance of masonry
Colourless:
Will not change the natural appearance of masonry
Unlike alternative masonry treatments, Si-Dry will not permanently darken masonry or leave a glossy sheen. A small inconspicuous test treatment will be carried out by your Si-Dry contractor and some surface darkening will occur whilst Si-Dry penetrates the masonry – however this will fade over time

17. Breathable:
Very low reduction in breathability (<10%) when tested to BS EN ISO 12572:2001)
Breathability is important as it moisture already in the wall to dry out – allowing the energy-saving benefits of Si-Dry to be achieved more quickly

18. How much energy will I save?

19. 30% Typical energy saving:
Is around 30%, but actual energy saving will vary depending on local weather and wall type.
30%

20. Rainfall is above average
Maximum energy savings occur where:
Rainfall is above average
Walls are constructed from porous bricks/stone

21. So potential heat savings are highest in these areas.
Northern and western areas have highest rainfall:
So potential heat savings are highest in these areas.

22. Have the highest potential energy saving
Porous bricks and stone:
Have the highest potential energy saving
The air pockets in porous masonry act as insulators – but only when dry. Once moisture has entered these air pockets most of the insulation properties are lost. Treating with Si-Dry prevents this from happening – resulting in significant energy savings.
Your Si-Dry Approved Contractor can test the porosity of your masonry using a Karsten tube

23. How long will Si-Dry last?

24. Si-Dry has a life expectancy of over 20 years based on:
Field experience with older-generation silicone water repellents
Accelerated aging tests

25. Si-O bonds in Si-Dry’s active ingredients are much more resistant to UV light than other types of water-repellent.
UV-resistance is a key factor in providing long-term water-resistance as without it the water-repellent effect will be destroyed by sunlight

26. Accelerated aging using an industry standard QLab QUV SE
No reduction in water-repellency after 2000 hours extreme UV exposure

27. Depth of penetration means most of the treated zone (i. e
Depth of penetration means most of the treated zone (i.e. deeper than 2mm) is never exposed to sunlight

28. Summary

29. Si-Dry reduces heat loss by keeping walls dry
Breathable and colourless
>20 year life