Interior insulation system with moisture control
An interior insulation system with moisture control for an exterior building wall has a first insulation element adapted for abutting the interior surface of the external wall; a second insulation element abutting said first insulation element; a vapour barrier covering the interior surface of the second insulation element; and a support structure below the first and second insulation elements and supporting said first and second insulation elements The support structure has a gutter profile having a cavity with an upper opening and at least one ventilation opening, and a third insulation element is provided in at least a portion of said cavity.
1. An interior insulation system with moisture control for an exterior building wall, said system comprising:
a first, discrete mineral wool insulation element configured to abut an interior surface of the external wall;
a second, discrete mineral wool insulation element abutting said first insulation element;
a vapour barrier covering an interior surface of the second insulation element; and
a support structure positioned below the first and second insulation elements and supporting said first and second insulation elements;
wherein the support structure comprises a gutter profile having a cavity with an upper opening and at least one ventilation opening, and wherein a third, discrete mineral wool insulation element is positioned in at least a portion of said cavity.
2. The interior insulation system according to claim 1 , wherein the upper opening of the gutter profile is arranged so that the first insulation element is supported directly by the third insulation element.
3. The interior insulation system according to claim 1 , wherein the gutter profile is made of a sheet metal, which is bent into shape.
4. The interior insulation system according to claim 1 , wherein the gutter profile is made of plastic.
5. The interior insulation system according to claim 1 , wherein the gutter profile is a metal profile.
6. The interior insulation system according to claim 5 , wherein the metal profile is aluminum.
7. The interior insulation system according to claim 1 , wherein an inner wall cover is provided on the vapour barrier on the interior surface of the second insulation element.
8. The interior insulation system according to claim 7 , wherein the inner wall cover is a gypsum board.
9. The interior insulation system according to claim 1 , wherein the third mineral wool insulation element has a density, which is higher than a density of the first and second mineral wool insulation elements, and said density of the third mineral wool insulation element is from 150 to 250 kg/m 3 .
10. The interior insulation system according to claim 9 , wherein said density of the third mineral wool insulation element is approximately 200 kg/m 3 .
11. The interior insulation system according to claim 1 , wherein at least the first and the third insulation elements are made of hydrophilic mineral wool fibrous material.
12. The interior insulation system according to claim 11 , wherein the hydrophilic mineral wool insulation elements comprise a wetting agent.
13. The interior insulation system according to claim 11 , wherein the hydrophilic mineral wool insulation elements comprise an anti-microbial substance.
14. The interior insulation system according to claim 13 , wherein the anti-microbial substance is Benzalkonium chloride.
15. The interior insulation system according to claim 1 , wherein the gutter profile comprises an upright first wall portion adapted for abutting the inner side of the exterior wall, a substantially horizontal base portion perpendicular to said first wall portion, a second innermost upright wall portion for receiving a mounting of a skirting board, and one or more insulation support portions, and wherein the cavity is defined by said first and second wall portions, said base portion and one or more insulation support portions.
16. The interior insulation system according to claim 15 , wherein in the gutter profile, the insulation support portions comprise an upwards facing first support surface for the second insulation element and an upwards facing second support surface for accommodating an inner wall cover.
17. The interior insulation system according to claim 16 , wherein a U-shaped profile is mounted on the upwards facing first support surface for receiving the second insulation element.
18. The interior insulation system according to claim 16 , wherein said second support surface is provided with a plurality of ventilation openings in at least a portion of said support surface.
19. The interior insulation system according to claim 18 , wherein said second support surface is extending a width larger than a width of an inner wall cover leaving a gap between said inner wall cover and a floor panel above the second support surface, and wherein the ventilation openings are provided at least in said gap portion of the second surface.