External Thermal Insulation
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External Thermal Insulation Composite System GUTEX Thermowall ®

Your home - safe and sound Table of Contents Advantages Installation of Wood Fibreboard Insulation General Installation Guidelines Improper Installation & Consequences Render System Render System - Instructions Installation Details Suggested Constructions Fire Protection & Acoustic Insulation Technical Information Estimate Sheet

GUTEX Thermowall ETICS Use of suitable, high quality building products is the key With their premium finished appearance, excellent to providing you with a healthy and comfortable indoor suitability, workability, and building authority certification, GUTEX’s high-quality, natural building products deliver even more than installers and home owners expect from an external thermal insulation composite system. system (ETICS), consisting of Thermowall, a single-ply homogeneous wood fibre insulating board plus render, is exceptionally ecological and superbly fulfils these criteria. Advantages 1....

1. Directly over wood frame Timber framed construction, cavities insulated with GUTEX Thermofibre/ GUTEX Thermoflex GUTEX Thermowall/-gf GUTEX render system 2. Over composite or solid wood wall boards Timber framed construction, cavities insulated with GUTEX Thermofibre/ GUTEX Thermoflex Boarding/ sheathing GUTEX Thermowall/-gf GUTEX render system 3. Over solid wood Solid wood building elements GUTEX Thermowall GUTEX render system

4. Over masonry substrates Mineral substrates, such as masonry GUTEX Thermowall GUTEX render system 5. Over masonry substrates covered by wood frame Mineral substrates, such as masonry Timber framed construction; cavities insulated with GUTEX Thermofibre/ GUTEX Thermoflex GUTEX Thermowall/-gf GUTEX render system 6. Over half-timbered walls (fastened to wood frame) Half-timbered walls GUTEX Thermowall GUTEX render system

Installation Over Timber Frame Walls Z-33.47-660 Smaller boards – GUTEX Thermowall/-gf fastens directly to the wood studs or over sheathing in timber framed constructions. Tongue and groove, 40 and 60 mm thick Length x width: 130 x 60 cm – When installing over sheathing, GUTEX Thermowall/-gf has to be fastened to the studs. – For smaller GUTEX boards, the minimum required thickness of the timber studs is 38 mm; for larger boards it is 50 mm. Tongue and groove: 80, 100, 120, 140, 160 mm thick – Fasten with wide-back, stainless steel staples (from Haubold, Poppers, Senco, Bea or Prebena) or...

B GUTEX NATURALLY MADE FROM WOOD Installation Over Wood or Masonry Substrates Z-33.47-660 and Z-33.43-942 Butt joints: Rebate: Length x width: Recommended combinations for double-layer installations with full-area contact to substrate Smaller boards GUTEX Thermowall; XD = 0.039 W/mK Butt joints: 20.40, 60 and 80 mm thick Butt joints: 100, 120, 140 and 160 mm thick Tongue and groove: 80 and 100 mm thick Length x width: 130 x 60 cm GUTEX Thermosafe-homogen For solid wood substrates, such as cross laminated plywood. glulam wood walls, or mineral substrates (masonry, etc.), it is...

General Installation Guidelines Installation of the fibreboards – Minimum board thickness for exterior walls is 40 mm – Minimum board thickness for reveals is 20 mm – Minimum useable board size is 20 x 40 cm – Joints with adjacent elements of the building must be tightly sealed against driving rain and wind. – Hollows or buckles in the exterior surface are to be smoothed out via sanding or planing prior to applying the render. – Board joints of 2 mm or less are acceptable; joints of 2-5 mm are to be filled with a suitable material, such as GUTEX Fugendicht (joint sealer). Fill joints...

General Installation Guidelines Min. quantity of required fasteners per m2 for wood Wind load we as per DIN 1055-4 [kN/m²] Fasteners/m GUTEX Thermowall Holzschraube (wood screws) Max. allowed vertical distance between fasteners for boarding over timber studs spaced at 62. 5 cm on-centre Wide-back staples with GUTEX Thermowall Min. number of required fasteners per m2 for masonry Wind load we as per DIN 1055-4 [kN/m²] Fasteners/m GUTEX WDVS Thermoschraubdübel (thermally decoupled screw expansion fasteners) Wide-back staples with GUTEX Thermowall-gf 100 mm mineralischer mineralischer...

Bottom edges adjacent to foundation Bottom edge of fibreboard not properly fitted with stop bead. Severely damaged board edges. Missing sealing strips. ^ Ingression of moisture causes the boards to swell, cracks to form in the render, and produces mould and fungus. Window sills Overhang ^ 30 mm; absence of sealing strips ^ Moisture from driving rain and wind, brown discolouration of render, mould and fungus and swelling of boards. Transitions from masonry to wood structure Both render stop and expansion/ movement bead (settlement joint) absent.^ Buckling due to settling, formation of cracks...

GUTEX Render System Render protects buildings against moisture and other environmental influences. GUTEX’s render system has been specially designed, tested and certified to meet the toughest possible demands. Essential to the functional reliability of the render system is the compatibility of the render and the plasterboard. System Components GUTEX Thermowall ETICS Products GUTEX Thermowall and GUTEX Thermowall-gf GUTEX Klebe- und Spachtelputz (adhesive/ base coat) GUTEX Universal-Armierungsgewebe (fibre reinforcement mesh) Splash water protective coat (if required) GUTEX Sockelanstrich...

Adhering the boards to mineral substrates _ . Full area adhesion with GUTEX Klebe und Spachtelputz mortar. Application & quantity . . . . , Approx. 4 kg/m2 Application of the base coat in two steps Base (scratch) coat GUTEX Klebe- und Spachtelputz

GUTEX Thermowall Application of the final render coat Primer GUTEX Isoliergrund Drying time Required quantity Packaging unit Depending on the substrate, it may be thinned with up to 10 % water. Apply the isolating primer to surface with paintbrush or roller. Not suitable for airless spraying. Protect nearby surfaces. Usually dries overnight Approx. 0.35 kg/m2 25-kg tub Final coat GUTEX Combiputz Drying time Mix 25 kg of GUTEX Klebe- und Spachtelputz mortar with 6-7 l of clean water, making sure there are no lumps. Apply with a stainless steel trowel with coat not exceeding grain thickness....