Application Guidline - HECK Wall Systems 8 HECK EPS perimeter board 30-035, bevelled on-site 9 HECK

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Transcript of Application Guidline - HECK Wall Systems 8 HECK EPS perimeter board 30-035, bevelled on-site 9 HECK

  • Application Guidline

  • Content

    Page

    1. Preliminary notes 03 1.1 Legal Bases 03

    2. Substrate 04 2.1 Assessment and preparation of the substrate 04

    3. HECK insulation systems at wall bases 05 3.1 Preparations – Installing wall base profiles 06

    4. Adhesive bonding 07

    5. Anchors 08 5.1 Anchors types 08

    5.2 Mechanical fastening of HECK insulation systems 08

    5.2.1 HECK MultiTherm EPS 08

    5.2.2 HECK MultiTherm MW 08

    5.2.3 HECK MultiTherm L-MW 09

    5.3 Anchor quantity for structural mechanical fastening 09

    5.4 Anchor placement and quantities 10

    6. Joint sealing – Installation of accessories parts 10

    7. Reinforcement of window/door jambs 11 7.1 Surface reinforcement 12

    8. Final coating and surface design 14 8.1 Finishing coats, thin-layered

    2

  • 3

    1. Preliminary notes

    Exterior thermal insulation using Exterior Insulation Finishing Systems reduces heating expenses, is environmentally sound

    and improves interior climate and living comfort. EIF systems have proven reliable and effective for more than fifty years.

    To ensure the durable functionality of an insulated facade, the installation of Exterior Insulation Finishing Systems must be

    planned professionally and executed with attention to detail.

    This installation guide will become invalid with the publication of a new edition. With the information contained herein we

    want to advice to the best of our knowledge. The notes on installation are for informational purposes only; they have to be

    adjusted to actual on-site conditions.

    For HECK customers: prior to planning or installing our EIF systems, a briefing on our product systems is necessary. Please

    contact us for details.

    1.1. Legal Bases

    The usage and application of EIFS are subject to building regulations and building codes. Those may be of European Union

    origin, national origin or regional or local origin and may vary. Please make sure that application and usage of an EIFS at

    your specific project comply with the current regulations and codes in place and also the guidelines of the producer, which

    are completely binding. In principle the applicable legal bases require application and usage of systems. Mixing and

    matching of system components normally does not comply with the legal bases.

    Approvals for EIFS

    Within the European origin EIFS may be used only, if the general fitness for use is confirmed by an European Technical

    Approval (ETA). In some countries within the EU further more specific aspects are subject to national approvals or national

    application documents. Outside of the European Union depending on the country the general fitness for use may be confir-

    med by a national approval.

    Any of those approvals or application documents may define requirements on application that needs to be obeyed.

    Specific regulations for EIFS

    Beside requirements defined in approvals or application documents specific national or even regional or local regulations

    exist.

    Typically fire protection requirements are nationally or regionally defined. In principle mineralwool based systems provide

    the best fire protection. Foam based systems typically require additional measures to improve fire protection. A well recei-

    ved and accepted method is to apply a at least 200 mm firebreak from non combustible mineralwool in the thickness of

    the requested insulation at every second floor level and it is recommended to use this method if no other regulation on fire

    protection exist nationally regionally or locally.

    As energy efficiency and CO2-reduction are important topics in most countries regulations on design of structures or

    building with regards to energetic performance are in place. Those national regulations may be complemented by regional

    or local regulations or incentives. It is recommended to carefully design the system and its application to the energetic

    performance regulations in place.

    Further national, regional or local regulations may be valid during design and application of an EIFS with regards to sound

    protection, impact resistance, environmental protection, requirements on static load accommodation and maybe other is-

    sues. Those regulations and requirements may change the usage or application of an EIFS as described in this application

    reference guide.

  • 4

    Substrate Treatment

    moisture within masonry remove cause; vertical waterproofing, horizontal waterproofing, wait until substrate has dried

    salt efflorescences sweep off, brush off, renew damaged render surfaces

    discontinuities, expose hollow areas and fill cavities in plasterwork

    brittle, nonstructurally-sound remove affected render and refill; plasterwork alternatively, use mechanical fixing

    dusty, soiled sweep off, brush off, pressure-clean

    algae, fungi, moss remove, post-treat mortar ridges remove

    adhesion-inhibiting residues, steam-jet clean using additional detergent; such as formwork oil remnants wash off with water afterwards

    chalking or sanding plasterwork clean and prime using stabilising primer

    chalking paint coat brush off, clean and prime using stabilising primer

    chipping paint coat remove; alternatively, use mechanical fixing for EIFS

    highly absorbent, clean and prime non-alkali-resistant

    unevennesses level with render (CS II / CS III / MG P II; curing time 1 day/mm minimum)

    unknown substrates test adhesive properties and structural soundness; prime if necessary

    2.1. Assessment and preparation of the substrate 2. Substrate

  • 5

    3. HECK insulation systems at wall bases

    Wall base flush with wall Setback wall base

    1 wall construction material 2 building insulation in accordance with DIN 18195 (during construction) 3 HECK adhesive 4 HECK insulation board 5 HECK base coat 6 HECK finishing coat 7 Rajasil 2K DB or Rajasil DS FLEX 8 HECK EPS perimeter board 30-035, bevelled on-site 9 HECK system anchors; exact type depending on application 10 HECK finishing coat for use on wall bases, e.g. HECK K+A; smooth-finished with felt or sponge float 11 Rajasil SHF, two-coat application 12 Rajasil DS FLEX or, alternatively, Rajasil 2K DB for waterproofing the render system 13 protective layer in accordance with DIN 18 145, e.g. dimpled sheet

    1 wall construction material 2 building insulation in accordance with DIN 18195 (during construction) 3 HECK hammer-in anchor 4 HECK wall base profil 5 HECK adhesive 6 HECK insulation board 7 HECK base coat 8 HECK finishing coat 9 HECK Fugendichtband 2D (sealing tape) 10 Rajasil 2K DB or Rajasil DD FLEX 11 HECK EPS perimeter board 30-035 12 HECK system anchors; exact type depending on application 13 HECK base coat (suitable for wall bases) 14 finishing coat for use on wall bases, e.g. HECK K+A; smooth-finished with felt or sponge float 15 Rajasil SHF, two-coat application 16 Rajasil DS FLEX or, alternatively, Rajasil 2K DB for waterproofing the render system 17 protective layer in accordance with DIN 18 145, e.g. dimpled sheet 18 certified perimeter insulation board (during construction)

  • 6

    • install using approx. 3 HECK

    hammer-in anchors/m

    • level unevennesses with HECK

    distance pieces

    • create transitions using HECK

    wall base profile connector

    • pay attention to expansion-joint

    gap between profiles

    • mitre corners

    Execution with wall base profile (recommended when wall bases ARE NOT insulated):

    HECK special wall base solution (recommended when wall bases ARE insulated)

    Tip:

    Designs with mounted drip-edge

    profiles are virtually free of thermal

    bridges.

    HECK wall base solution W 65

    HECK mounting angle Z 16

    HECK corner connection Z 15

    insulation material

    thickness ______ mm

    HECK wall base profile Alu

    HECK wall base profile V2A

    HECK wall base profile

    connector

    HECK hammer-in anchors

    HECK distance pieces

    3.1. Preparations – Installing wall base profiles

  • 7

    4. Adhesive bonding

    Ribbon-and-dab method; effective

    adhesive bonding surface > 40%

    Manual adhesive application

    to entire surface

    Partial-area bonding (effective

    adhesive bonding surface > 60%; application possible with EPS here)

    Coverage:

    • ribbon-and-dab method: approx. 4 kg/m²

    • adhesive application to entire surface:

    approx. 8 kg/m²

    • partial-area bonding: approx. 6 kg/m²

    minimum thickness 1.0 cm

    Interlock corner boards for more stable compound.

    With normal-sized window jambs the facade boards will extent into the opening,

    so that the insulation material strip for the window jamb can installed without

    creating thermal bridges.

    Notch insulation boards at the corner of window openings.

  • 8

    5.1. Anchors types 5. Anchors

    Constructural anchors Load bearing anchors

    hammer set anchors HECK SDK-FV HECK SD-FV

    HECK NTK-U

    anchors HECK SX-FV S HECK SX-FV U

    anchors with screw HECK STR-H HECK STR-U

    HECK hammer-in set anch