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Mapetherm X2 System to double external thermal insulation

Old Building

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External thermal insulation system

Application steps

Discover the application steps, the products used for this solution and other alternative products.

1

Old damaged thermal insulation

2

High-penetration hygienising treatment

SILANCOLOR CLEANER PLUS

Apply the product with a low-pressure manual sprayer or brush and leave it to react for a few minutes, making sure it penetrates deep down into the substrate. Remove the mould with a stiff brush.

3

Acrylic primer

MALECH

Apply a coat of undercoat with a brush, roller or by spray on the clean, dry substrate.

4

Adhesive

MAPETHERM AR1 GG

Apply an even layer of adhesive on the back of the insulating panels with a notched trowel.

5

Insulating panel
SYNTERIZED EXPANDED POLYSTYRENE - RECYCLED EPS

Position the panels on the substrate in horizontal rows. The panels should be staggered at the midpoint of their longest side and by 25% in height with respect to the layout of the existing insulating panels.

6

Fasteners
MAPETHERM-EJOTHERM S1

Insert the fasteners into the set adhesive until they reach the load-bearing portion of the substrate.

7

Reinforced skimming mortar
MAPETHERM AR1 GG + MAPETHERM NET

Apply two successive layers of the skimming mortar to form a layer 4-5 mm thick. Place the reinforcing mesh on the first layer of skimming mortar while still fresh, overlapping adjacent pieces of mesh by at least 10 cm.

8

Siloxane undercoat

SILANCOLOR BASE COAT PLUS

Once the skimming mortar has cured apply a coat of undercoat with a brush, roller or by spray (not airless).

9

Acrylic siloxane coating

SILANCOLOR AC TONACHINO PLUS

Apply one or two coats of finish, according to the texture of the surface, with a stainless steel trowel.
Finish off the surface with a sponge or plastic float.