Installer and User Manual
Contents
1. Newly built flats may need to dry out Therefore care should be taken to ventilate particularly frequently during the first year of living in a new flat Replacing the windows or fitting draught excluders to doors or windows can make a flat so draught proof that it requires more frequent ventilation than before Where people smoke it s a good idea always to keep vents to the external air open or leave small opening ventilation lights ajar In general you should contact the caretaker or other relevant person if damp problems arise Faults are most easily corrected if you intervene straight away REMEMBER GOOD VENTILATION IS A MUST FOR A GOOD INDOOR CLIMATE in bedrooms C Air the room and make sure the bedding is aired every morning 11 Turn the mattresses occasionally O Don t leave bedrooms completely unheated CO If the windows steam up ensure better ventilation to the external air or to the other rooms in the house or flat in bathrooms O Never block or close vents or extractor fans O Avoid in so far as possible to wash and particularly to dry washing in the flat However if you can t then do it in the bathroom and ensure ample ventilation C Air well after having a bath or shower CO Warm and humid air from tumble dryers should be vented direct to the external air Source SBI ANVISNING 76 5th EDITION ISBN 87 563 0962 7 COPYRIGHT STATENS BYGGEFORSKNINGSINSTITUT 1997 WARRANTY Wa2. Mainly for these reasons the Vindueslndustrien recommendation is for vents to the external air suitably adapted to be incorporated in the wall structure and not in the window units Advice on ventilation Instruction No 76 from The Danish Building Research Institute gives some practical recommendations about ventilation of the dwelling The instruction 5th edition 1997 has been reproduced on the following page s 22 2850 Illustration 104 2 Example of vent 7 to the external air 7 WIth nsed mesh 10500 condensation device and acoustic insulation Mmmm TUTTA EE 2 E i filter ant gt ANA L4 m N x Fxternal grate vvith insect mesh Acoustic insulation x oss lt AA AAA Filter Anti condensation device Avoid damage from damp open the window The air in a flat can soon become too humid as a consequence of cooking washing bathing and watering potted plants The humid air may cause damage from damp mould spots and health hazards dust mites Many people believe a flat to be self ventilating but this is rarely the case The inhabitants must therefore themselves ensure sufficient ventilation to remove the moisture generated in the flat Newer buildings usually have mechanical ventilation extracting air from kitchen and bathrooms through extraction vents in or near the ceiling These vents must be kept open and clean
3. to operate effectively Often there are also vents providing external air in or near windows These supply the air which is subsequently extracted through kitchen and bathrooms These vents should be kept permanently open LT In older buildings with small opening ventilation lights it may be necessary to leave them permanently slightly ajar to provide enough fresh air REMEMBER VENTILATE SUFFICIENTLY TO AVOID THE WINDOWS STEAMING UP in habitable rooms C Air a couple of times a day or use vents to the external air if available If the windows start to steam up take care to air more 1 Do not turn off the heating completely in rooms which aren t in use O Do not place wardrobes or large items of furniture completely up against an outer wall the air in the room must be allowed to circulate behind them to prevent the formation of mould spots on the wall in the kitchen C Never block or close vents C Open up vents fully or turn extractor fan or cooker hood to maximum speed when cooking C Putting lids on pans during cooking limits the amount of moisture entering the kitchen O Air well during and after cooking Even if we must save energy going overboard could lead to damp air and poor air quality in our rooms which should be avoided Luckily heating reasonable amounts of fresh air won t cost a fortune C It will cause fewer damp problems if all rooms are heated to about the same temperature
4. and lubrication and a check of weather seals and sealant tape This maintenance should be carried out in accordance with the following guidelines Cleaning Depending on the direction they face and their location external casement and frame surfaces will become dirty They should therefore be cleaned at suitable intervals normally in connection with cleaning the glazing units Use water with a normal cleaning agent added Finish by wiping surfaces and edges dry Lubrication Once a year all moving parts in hinges handles and locks should be lubricated It is particularly important that moving parts held together by rivets e g turn hardware are cleaned and lubricated at least once a year Metal only connections are lubricated with a neutral oil applied using an oil can syringe or a spray can with a thin tube and bubrication Moving connections consisting of metal and synthetic materials should be lubricated with candle wax or a special lubricant in accordance with the supplier s instructions Such connections are found in various types of hinge tracks for them to function properly it is important that the hinge tracks etc are also kept clean Weather seals and sealant tape At the same time as the annual lubrication weather seals and glazing tape should be checked Weather seals should be checked for proper location and fixing and to ensure that the seals are still sealing properly Most types
5. glazing unit has been installed in accordance with Glasindustrien s fitting instructions The glazing unit has been properly cleaned and protected during the building work The glazing unit has not been damaged by exposure to external forces e g impact blow movement in adjacent constructions and the like Damage has not been caused by frost thermal forces or chemicals attacking the glass or oxidization caused by incorrect storage The glazing unit has not after delivery been exposed to e g grinding sand blasting corrosive chemicals painting sticking on of labels or other surface treatment The glazing unit has no stuck on and or built in elements such as leaded windows alarm systems Venetian blinds etc which have caused the glazing unit not to remain free from dust and dirt in the sealed cavity Casement frame and installation materials have been subjected to the reguired regular maintenance Further information about Glasindustrien s warranty scheme can be found at www glasindustrien dk DVC z Each member of Vindueslndustrien is affiliated to the DVC Dansk Vindues Certificering the Danish window certification body this ensures that you deal with somebody who is part of a guality control scheme The DVC is a completely independent control body affiliated to the Danish Technological Institute Being affiliated to the DVC means that in general a company s pr
6. takes high priority Another important task for VinduesIndustrien is to draw up and maintain the Technical DELIVERY Reguirements which form the basis for the guality control conducted by DVC Dansk Vindues Certificering the Danish window certification body The Technical Requirements provide the optimum basis for the manufacture of windows and external doors This applies in particular to their function and life with ever increasing attention to energy and environmental aspects For more information please go to VVVVVV Vinduesindustrien dk and storage During unloading and subseguent handling of the units you must employ lifting gear and methods which do not cause damage to the units The buyer must check incoming goods on arrival to ensure that the delivery meets the contract and that there are no obvious defects or damage to the units e g cau sed in transport If there are grounds for complaints or gueries the supplier must be notified vvithout delay Labels and cork pads on glazing units must be removed no later than tvvo vveeks after receipt of the goods All corner protectors protective foil or other protective packaging must remain in place and only be removed when the units are fitted If stored outdoors the units must be placed on bearers or pallets to provide sufficient clearance from the ground The units must be securely covered to protect them from precipitation and dirt At t
7. window manufacturer s instructions In oil treated units in hardwood the signs of failing surface treatment will normally appear as discolouration of the timber in the exposed areas listed under painted units To prevent discolouration of units in hardwood it is important that the surface treatment remains water repellent This may mean that after delivery there will be a need for maintenance at six monthly intervals until the timber has become saturated followed by renewed application at 1 2 year intervals Renewed application of oil should always be undertaken using a product and a method recommended by the window manufacturer 16 VENTILATION of the dw New windows will usually be very airtight and there will therefore be a need for more systematic ventilation of the dwelling than in the case of older draughty windows Regulatory reguirements Regulatory reguirements vary from country to country The Danish regulatory reguirements cited below therefore serve as an illustration only please consult the relevant authority for information about the regulations which apply in your country In order to comply with the reguirement of the Danish Building Regulations of 1995 regarding the supply of external air to habitable rooms such rooms must have in addition to opening windows hatches or doors one or more vents to the external air with a total unrestricted opening of at least 30 cm per 25 m floor ar
8. I Mean value of layer thickness 60 uim 80 um IH The surface must be non absorbing No requirement Examples South and west facing building parts with changing moisture conditions or traffic pollution or other aggressive influence See also supplementary description of results Faces edges and rebates have a colour and sheen and feel smooth Pores have been sealed Holes fissures and joints have been sealed and filled Unevenness arising from the base may occur Hardwood is exempt from the requirement of surfaces being filled Faces edges and rebates have a uniform colour and sheen and feel smooth Unevenness open pores holes fissures and joints arising from the base may occur Supplementary description of outcome It must generally be accepted that timber is a natural material which is often not homogeneous Therefore there will be variations in structure and sheen star shakes and other normal timber variations e g irregularities around knots where partial flaking blistering and wrinkling may occur Particularly in the case of light colours there may be colour penetration from knots Knots may have been plugged or filled with a suitable material but will remain visible Similar colour variations may occur in the form of profiles areas with yellow discolouration Another irregularity in the surface treatment may appear as resin buds The buds may be distributed randomly across the surface or foll
9. VINDUES INDUSTRIEN Installer and User Manual WINDOWS AND EXTERNAL DOORS IN TIMBER CONTENTS THE SAF Congratulations on choosing please contact the window windows and external doors manufacturer who will from a member of provide the necessary VinduesIndustrien the instructions Association of Danish Window Manufacturers The safe choice VindueslIndustrien Delivery and storage Otherwise incorrect installation may cause the Buying these units from one units to malfunction This of our members ensures that type of problem is not Installation fixing and sealing Performance and operation Top hung casement AAA S9 NAA W your windows and external covered by the window and Top guided doors have been door warranty Following this T ibl 10 manufactured under quality manual and having the units op reversible casement control However to ensure installed by experienced Side hung 0 satisfactory performance window and external door turn casement the short and long term it is installers is the best safeguar
10. ad down a little in the process position giving a 1 2 cm gap at the bottom The window may have a casement stay to hold the casement in position when opened to a wider angle As a design the top hung casement has toa considerable extent been replaced by the top guided casement cf below The casement is operated by a handle located in the middle of the bottom rail When opened the casement can be retained in a ventilation position giving a 1 2 cm gap at the bottom When opened to a wider angle the casement is con trolled by friction brakes in the hinges The amount of friction can be easily adjusted but you must ensure that the amount of friction applied is the same at both sides of the casement Please note that the friction brake will not retain the casement in position under higher wind loads TOP SVVING Top svving hinges allovv the casement to be opened out and reversed completely outside the frame This allovvs the external face of the glazing unit to be cleaned from the inside of the room The casement is operated bya handle located in the middle of the bottom rail the case ment can be retained in a ventilation position vvith a 1 2 cm gap Top reversible hinges often feature a child proof mechanism to prevent the casement being opened more SIDE HUNG The type of hinge may vary but ordinary side hung casements function the same way than about 10 cm Fully revers
11. cts in materials and or workmanship can be remedied properly by repair partial replacement the warrantor may choose this option instead The repair partial replace ment shall then follow free of charge This warranty shall not cover defects in the materials and or workmanship of sealed glazing units However in such cases the warranty of the sealed glazing unit manufacturer shall apply please refer to this This warranty does not give you rights over and beyond what is mentioned in paragraph 3 VI If you wish to claim VI under the warranty for defects in materials and or workmanship the claim must be lodged within a reasonable time of detecting the defect or within which the defect should have been noticed The claim can be lodged with the warrantor or with the contractor supplier who supplied the product This warranty shall not apply if the claimed defects in materials and or workmanship are due to incorrect fitting lack of or inadeguate maintenance or incorrect operation Please refer to the warrantor s fitting operating and maintenance instructions For timber windows doors with a factory surface treatment please refer in particular to the maintenance instructions and the description Expected outcome of industrially surface treated timber elements Annex 14 of the Vindueslindustrien Technical Requirements If exceptionally you did not receive maintenance operating
12. d ilt turn casement important that the uniis ar Side swing and side guided casements installed and maintained in performance of the units accordance vvith the External doors Re I 2 VVith regular maintenance 2 and correct treatment in Correct installation con nihii anial DOO Seesen L H 5 and maintenance is your nevv quality products 3 important will continue to provide 25666 Flo Es jee come Liia 79 Aro roro N 5 leaflet If you are not sure Maintenance cleaning and lubrication 4 NOW to Install the Ventilation of the dwelling 6 Warranty and warranty scheme 2 Dansk Vindues Certificering The Danish window certification body el 2 V N U F S Annex 14 22 MW INDUSTRIEN Kongsvang All 24 Postboks 521 DK 8000 Arhus C Denmark Tel 45 7220 1822 Fax 45 7220 1823 info Ovinduesindustrien dk www vinduesindustrien dk VINDUESINDUSTRIEN Founded in 1977 Vindueslndustrien is an industry association comprising some 70 Danish manufacturers of windows and external doors The general purpose of VinduesIndustrien is to look after the common interests of the industry In this context safeguarding consumers when they buy windows and external doors
13. d narrow side The frame must be adjusted and fixed to allow the correct fit and prescribed clearance all the way round between frame and casement Fixing Windows and external doors must always be fixed to the surrounding brickwork or building structure by means of mechanical fasteners such as frame screws dowels or brackets Fixing to the inner skin of brick built buildings before erecting the outer leaf reguires the use of special fixing brackets capable of transferring all future vertical and horizontal forces Alternatively the units must be permanently fixed to the brick face outer leaf in accordance with the instructions below When using expanding foam to fill the gap between the external face of the frame and the surrounding brickwork or building structure you must apply the same mechanical fixing method as described below If the frame is secured by fasteners frame screws and dowels or brackets at each individual fixing point in the opening the unit will not need permanent blocks Other fasteners reguire the use of firm permanent blocks of a material which remains stable under moisture such as marine plywood or a synthetic material possibly with the addition of a damp proof course ill 1 Fasteners such as frame screws and dowels are normally located in the frame rebate cf ill 2 ill 2 Permanent blocking must not be used at the head of wide units e g lift and slide door
14. dle in the casement jamb when closed the handle is turned downwards Depending on the make of handle one function is achieved by turning the handle to a horizontal position and the other position by turning it upwards to a vertical position By turning the handle to 45 it will often be possible to secure the case ment in the bottom pivoting position giving a 1 2 cm ventilation gap at the casement head Fully tilted in the bottom pivoting position there will be a gap of approximately 10 cm at the top although this dimension will vary dependent on the casement height Opened to 1 2 cm the casement can be secured in a ventilation position by turning the handle At other opening angles the casement can be guided by a friction brake However please note that this will not retain the casement in position under higher wind load EXTERNAL doors External doors can open outwards or inwards inwards generally being the most common PATIO doors Patio doors can open outwards or inwards and be designed as glazed doors with the possible addition of panels Patio doors usually have three fastening points at the handle side all of which are engaged by turning the internal handle 90 Once opened the door can be controlled by a friction brake However please note that this brake will not retain the casement in position under higher wind load Normally an external door will have thr
15. ea Other rooms in the dwelling are not subject to any reguirements regarding vents to the external air In order to comply with the reguirement of the Danish Building Regulations Smaller Dwellings BR S 98 regarding the supply of external air to habitable rooms the following must be present An opening window hatch or external door as well as one or more vents to the external air with a total unrestricted opening of at least 60 cm per 25 m when using natural background ventilation and at least at least 30 cm to the external air per 25 m when using mechanical extraction Apart from rooms in the basement no other rooms in the house are subject to any reguirements regarding the installation of vents to the external air Vinduesindustrien s evaluation and recommendation For several years it has been customary to incorporate vents to the external air in the head of casements frames which has probably been considered to be the easiest solution Instruction No 189 from The Danish Building Research Institute contains more detailed instructions regarding the performance location and design of vents to the external air cf illustration 104 from this instruction This instruction does not point to the usual incorporation into the windows The tightened reguirement of BR S 98 a minimum of 60 cm of unrestricted opening per 25 m floor area means that incorporating the vents in the windows will often be problematic
16. ed the casement will be retained in the cleaning position The casement can be opened to a random angle However please note that the casement will then not be retained in position if exposed to higher wind loads or other forces Older mullion transom vvindovv designs normally use short casement fasteners with a longer sturdier type of fastener for 90 opening angles More recent designs are operated by means of a single handle at the closing side of the casement while in the open position the casement may be guided by a friction brake Please note that the friction brake will not retain the casement in position under higher wind loads TILT TURN A tilt turn casement is an invvard opening vvindovv which as the name implies will turn perpendicularly on hinges in the casement jamb and tilt horizontally from hinges in the bottom rail sill The side hung function is primarily used in connection vvith cleaning of the external face of the glazing unit vvhile the bottom rail pivoting function is used to provide ventilation Side swing and side guided hinges allow the casement to be opened and swung round approx 90 some side guided hinges even to approx 180 to allow the external face of the glazing unit to be cleaned from the inside of the room The casement is secured with casement stays or operated by means of a handle in the middle of the casement jamb The casement is operated by a han
17. ee fastening points at the handle side where the middle fastening point engages when the handle is operated normally The lower and upper fastening points are engaged by lifting the handle upwards whereupon the door can be locked External doors come in a variety of types and designs the details of which must be discussed at the time of purchase TILT TURN doors In principle the function and operation of a tilt turn door patio or balcony door corresponds to that of a tilt turn casement see above LIFT SLIDE doors A lift and slide door set consists of a fixed and a sliding half Turning the door handle lifts the sliding door leaf up disengaging it from the frame and allowing it to slide alongside the fixed section Once closed the door is locked by turning the door handle fully back to the vertical locking position TILT SLIDE doors Overall this type of door functions like a lift and slide door However opening the slide tilt door starts by disengaging the door leaf and tilting it in relation to the frame Then the lower end of the door leaf is projected outwards allowing the disengaged leaf to slide locked by turning the door alongside the fixed section handle fully back to the Once closed the door is vertical locking position MAINTENANCE General maintenance information Windows and external doors of all materials reguire general maintenance comprising cleaning
18. ent blocks damp proof courses The frame must be permanently blocked behind the strike plate at the closing side cf ill 4 This block serves primarily to make the door intrusion resistant distortion of the frame section If using expanding foam to fill the gap between frame and wall structure the frame must be stiffened until the foam has expanded fully or the frame sections kept straight in some other way Externally there must always be a protective finishing coat in the form of a mastic sealant tape or a similarly effective measure PERFORMANCE and operation Frame Casement Glazing bead Sealant tape Glazing unit Hinge side Hinge Friction brake Espagnolette bolt Strike plate Handle Casement weather seal Closing side TOP HUNG Various types of hinges are used for top hung casements all of them providing a fixed pivoting point near the case ment head Opening the window projects the lower part of the casement outwards while the casement head basically stays in position apart from pivoting round the hinge The casement is usually operated via a handle located in the middle of the bottom rail The casement can be retained in a ventilation TOP GUIDED This type of casement features top guided hinges in the upper frame and case ment jambs opening the window projects the lower part of the casement outwards and pulls the casement he
19. he same time proper ventilation around the units must be ensured to limit the risk of condensation under the cover Separate glazing units should be stored under a roof INSTALLATION 1 Correct installation is crucial for the functioning and life of the units Therefore the vvork should be performed by vvorkmen skilled in the installation of vvindovvs and external doors The follovving instructions cover some of the main aspects of the installation vvork but not all the details which may play a role in the installation Normally vvindovvs and doors are supplied with the glazing units fitted but in the case of fixed lights glazing units are often fitted after the frames have been installed Such glazing units must be fitted in accordance with the fitting instructions provided by Glasindustrien the Danish Glass and Glazing Industry Federation or as directed by the window supplier It will facilitate the installati on of most types of unit to remove the casement or door leaf before the first stage of the installation of the frame Installation The frame is normally positioned in the wall hole with a uniform gap around jamb and head while taking account of the level of the frame sill in relation to the wall sill floor level The gap between the frame and the surrounding brickwork wall structure should normally be around 12 mm At the hinge side the frame must be level and plumb wide an
20. instructions in connection with the VIII The delivery you should request them direct from the warrantor Under this warranty you cannot claim for defects in materials and or workmanship caused by circumstances which have arisen after the product was supplied by the warrantor Defects in materials which may be attributed to for example incorrect storage transport or fitting by a middleman contractor cannot be claimed against the warrantor under this warranty This warranty applies exclusively to products which at the time of making a claim under the warranty are physically located in Denmark but is not valid in Greenland or the Faeroe Islands above warranty which has been filed with the Danish Competition Authority was last revised on 1 April 1997 Sealed glazing unit warranty The following contains extracts from the warranty scheme applicable to glazing unit manufacturers who are affiliated to Glasindustrien The vvarranty covers the following For a period of five years from the time of manufacture stamped on the spacer bar the glazing unit manufacturer shall warrant that his sealed glazing units supplied for building purposes shall remain free from dust and mist in the sealed cavity It is a condition of this warranty that e The spacer bar in the glazing unit has been stamped with the Glasindustrien warranty mark and time of manufacture month and date eThe
21. oducts and quality control will be subjected to systematic biannual inspections Under the DVC scheme the manufacturers must comply with requirements regarding e g management and quality control product construction the quality of materials and finishing Vindueslndustrien members comprise manufacturers of windows and external doors in timber timber aluminium PVCu and aluminium because of their membership you can rely on all their products being DVC labelled For further information about the DVC and the requirements to which DVC labelled products are subject go to www dvc vinduer dk Dansk Vindues Certificering ANNEX Expected outcome of industrial surface treatment of timber elements Companies certified in accordance with Vindueslndustrien s Technical Reguirements must complete a surface treatment of timber elements which meets or exceeds the following performance reguirements Based on Danish terminology used in the publication Malerfagligt Behandlings Katalog Danish Technological Institute All surfaces have been treated but uniform layer thickness cannot be expected everywhere Expected outcome Visible faces of DLGU closed element Visible faces of 067 open element Hidden faces against vvall References Function class III Opaque sealed smooth and filled surface DLGU Epp AES cp EI Opaque and smooth surface DG Function Remarks class
22. of elements allow simple removal and refitting of weather seals this should preferably be carried out in connection with the application of a new coat of surface treatment Never overpaint weather seals Glazing tape should be checked for proper location and compression to ensure their continued weathertightness also in corner joints The compression of the glazing tapes is most easily checked using a thin feeler gauge which should encounter resistance when inserted between the glass and the glazing tape Maintenance of surface treatment Window and door units with external timber surfaces must always have a surface treat ment whose primary function is to prevent harmful variations in the moisture content of the timber The surface treatment must be renewed when there are signs of failure in the water repelling capability of the treatment Window and door units with Opaque or semi opaque surface treatment will usually show the first signs of deterioration in the timber bottom glazing bead at the lower end of side glazing beads and in the lower casement corners These failures will most frequently appear as splits in end grain and incipient peeling The need for maintenance of the surface treatment is very dependent on how the units have been installed and which direction they are facing but renewed application at 5 10 year intervals would serve as a rule of thumb Maintenance should always follow the
23. ow the pattern of the grain Resin may also penetrate the paint film and form droplets on the surface When the buds have been on the surface for long enough to have crystallized they may be removed by brushing or light scraping without deterioration in the surface treatment Timber units with high resin content do occur In such circumstances resin may cau se extensive bleeding Manufacturing is at an industrial level with all the advantages this means in terms of uniform high quality and treatment of all faces If nothing to the contrary has been agreed it must be assumed that glazing beads have been fitted using nail guns with ensuing penetration of the surface treatment The surface treatment of timber bottom glazing beads may not be expected to be as durable as that of other surfaces On south facing facades with particularly strong sunlight and sea air or where there is substantial moisture impact from the room maintenance intervals should be adapted to the circumstances For maintenance in general please consult Malerfagligt Behandlings Katalog MBK or the paint manufacturers MW VINDUES BE INDUSTRIEN www vinduesindustrien dk
24. rranty As following warranty conditions from 1 April 1997 the shall apply to all members of Vindueslndustrien The Association of Danish Window Manufacturers who are all affiliated to DVC Dansk Vindues Certificering the Danish vvindovv certification body This vvarranty has been issued by the member of Vindueslndustrien mentioned below hereafter referred to as the warrantor This warranty shall not limit or modify in any respect your rights in contract and or law against your supplier contractor or against the warrantor If within five years from the date of delivery by the warrantor you report a defect in materials and or workmanship the warranty shall give you the rights against the warrantor listed in paragraph 3 The product is labelled with the date of manufacture You may be reguired to document the delivery date If a justified claim concerning defects in materials and or workmanship is made within the period mentioned in paragraph 2 the warrantor undertakes to supply a new product free of charge However under this warranty the warrantor shall not be liable for the cost of dismantling removing the old product nor for installing the new product nor for any additional work in relation to replacing the product If the product is no longer in production at the time a claim is made the warrantor shall be entitled to supply a similar product instead If defe
25. s where there is a risk of exposure to load from the structure above In general the distance between fixing points must not exceed 90 cm cf ill 1 ill 4 Special instructions windows If units are less than 120 cm wide no fixing at head and sill is required Permanent blocks must be inserted under the extremes of sills at both ends units with mullions also require permanent blocks under the sills below the mullions cf ill 3 The blocking material must meet the requirements stated for permanent blocks damp proof courses Special instructions doors At the hinge side the upper and lovver fastener are Application of sealant The application of sealant caulking should follow the guidelines for the profect in hand or the guidelines drawn up by Fugebranchens Samar bejds og Oplysningsrad FSO the cooperation and information council of the Danish sealant application and manufacturing industry www fugebranchen dk When caulking care must be taken not to compress the material so hard that it causes ill 3 located close to the respective hinges Permanent blocks must be inserted under the extremes of sills at both ends wide doors must be permanently blocked below the centre of the sill cf ill 4 Double leaf doors with or without a centre post must be permanently blocked under the post where the leaves abut The blocking material must meet the requirements stated for perman
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