Technical Manual. NBT Flat roof movements that will affect a flat roof construction. They can be vented flat roof construction, wind is normally beneficial. Flat Roof Construction Manual. Materials, Design, Applications Pages i-iv. Download PDF. Free Access The evolution of the flat roof. Schittich, Christian. The indispensable guide to planning, designing, and constructing flat roofs with basic rules of construction and design, the Flat Roof Manual also supplies an.
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Flat Roof Construction Manual MATERIALS DESIGN APPLICATIONS. Edition ∂. SEDLBAUER SCHUNCK BARTHEL KÜNZEL. Flat Roof Construction Manual - Download as PDF File .pdf) or read online. soundofheaven.info - Download as PDF File .pdf), Text File .txt) or read online.
Joint filling- mal'erials must allow sufficient movement of me concrete slab st the joints. Separating membrane Vapour barrier Separating membrane Edge-fixed timber roof element Hose clip Pipe collar Planting Substrate Filter fleece Drainage layer Protective membrane Bitumen waterproofing, 2-ply Rigid plastic foam board Vapour barrier Edge-fixed timber roof element Dome grating Extension piece Body of roof outlet Lagging. IIWl where: The values are in no way intended to replace a proper structural analysis. A sheet metal skirting protects the bitumen llexible sheeting at the' parapet. Preorder now! In this detail the penetration is integrated into both the vapour barrier and the waterproofing with a collar fabricated on site.
The aim hers is to reduce Ihe disadvantages of the natural material,e. Boards are bQnded logeltler to form solid limber and multi-ply boards.. The fibres are used to produce wood fibreboards wi! Planad boards are. Vinen the thiokness is 40 mm or more we generally speak. The decking is naileaor sCfe'Oved 10 the load bearing jolsls posilioned al a spacing mm. They are usually less expensive end also otter building phySICS, conshucttonal, 8f'chiteclural Of structural adva.
OSBor particleboards can also unction as a vapoor barrier And, In cootrasl 10 solid limber. According 10 DIN , rool dacklngs made from wood-baseo products for metal, bitumen, slate and libre-cement roof IInishes, and also deckings below roof waterproofing materials, must be at least 22 mm thlok. Joints between wood-basad products in the loadbearlng direcbon must be posmoned over the supports.
Where the dec'king suppor1s the waterproofing materials dlrecUy, it is also advisable. Measures to prevent wind! Depending on the material. In this sltuatton, however, a number 01 condillons must be cornplied with. For exampte. Shear and transfer the lorcBS. WtthOut a more detailed analysis. A plale eUect in a rool decking madeo! To do this, the b. The decking is permanently bonded to the ribs and forms astn1clurally effective nange which Increases thestlHness 01 Iheelement substantially.
II a decking is added below such a rIbbed-panel element, the r: Such a formal construction Is also economic Irom the structural view-point because bending loads on the plate can be carried by axlallorcas in tile decking, which acts as a! Horizontal loads can be accommodated by and transferred to the primary siluctur'e via the plate effect of the elements. Ribbed-panel or hollow-box elements are available in widlhs of up to about 2. Eoolog,lcal solid timber roofs wIth good building physics pertormance can be achieved with the help 01 edge-fixed limber elements or crosslaminated timber.
The basic idea. UI LUI". OS Hest eansmlasion in building components 54 Standardised methods 01 calculatioo 58 Recommended thicknesses fOf layers Therrnalbridges are local;. In principle. A malerlalthermal bridge occurs when the thermal conduclivilles of the adjacent materials are different e. With a georne1rlcal thermal bridge. The result is a greater loss ot energy lnthis area Rg. C 1 , These calcutauons also.
In order to avoid moutd growth. The caJculaUon is carried out using the following equations:. DIN recommends determining 1I1e thBf'mal bridge loss coefli. Unear,wpe thermal bridges are regarded as two-dimensional heal-tlow afld temperature fields. Point-type thermal bridges with three-dimenSional Helds ensue. Such therma'i bridges are overesllmat. AcCQfding 10 lI"Ie new thermal performance r-e.
El1ects suct! The influence with respect to transmission heat lOSses via a! For Iineartype 1I1ermai bridQes tills results In the following:. DU, is calculated as follows:. Coefficient Ills 0. The U1ICkness d, 01 thelnsuiailon penetraled by 1M fastener can be greater than Ihe actuallhickness do ollhe layer of insl. Jlanon if the fastener is installed at an angte. On anlnver1ed or upslde-dCMll1 roof, the desigll is such that 'Water can seepbel M' the thermal Insulation.
As Ihls precipitation. The surcharge DU depends on tile vatue altha thermal resistance below lha waterproofing as a percentage of total thermal reststaoce ollhe root construction. On an inverted root with a mm deep concrete slab, for e. Tllis requirement is Imended to prevent the oocerrence 01 condensation on the soHlI. Condensallon can rormw'hen during rainfall cold water flowmg beneath the insulation on lop of the walarproollngcauses a severe coolIngcllhe soH! If ihe combination 01 products lin 1M total system.
II isthen guaranteed that most of the water can drain away on lop 01 the upper separating layer Fig. The result is correction values for the U-value between approx, 0. The methOd should be usedaooording 10 Ihe dBtaUs given In the technical spectfl cations lor the i nsulaling materia Is.
On green roots. Ilia elf rerroi'lS. Moisture cornro! In addition,lhe continual improvements 10 thermal Insulation and aIrtightness of bull dings bring with them an increased risk of damage.
This Is due 10 the tendency lor the air humldlly in 8lrllghlbuildlngs 10 be higher, but also to U1e fact hal the greater temperature dilfer'enc,es between lila inner and outer surfaces of oomponent's Increase Ihe riSk 01 eoneensanon.
As less heal escapes from tile inler'i Into the building envelope. Ii Is necesserv to analyse Ina climaiic loads on building oomponents before selecting sullable moisture control measures.
Standard solulions, as can be found In standards. The same Is true lorextemai climate conouions thai deviate from the known slanoard climate. VVhereas most designers are aware 01 the fact IIla. Buildings within heavy shadows or buildings at high altHudes, whose surfaces experience only a minimal temp9falure rise.
A number 01 fundamental terms and processes are explained below to help the reader understand the subject 01 moisture control,. The term hY'9rotherrnics describes the Interaction between temperature and moisture. This fact Is critical for limiting the moisture conlent In Insulating materials. In addition, there Is a transler 01 heal due to vepolll' diffusion with a change of phase.
In doing so, tile energy required for Ihe evaporation is regained, but in Ihis case on the outside of the Insulation. In some circumstances, this phenomenon. Water vapour is a variable component In 1M cornposnlon ct our atmospl1ere. The sanranon vapour pressure Ps of water Increases exponentially with I: The dew point 01 the interior air andlhe quantity of condensation per cubic metra of air upon fvrther cooling is a consequence of tile fact hallhe waler vapour saturation pressure is dependent on Ihe lemperature Fig.
A building, material thetIS hygroscopic, ana initially dry, absorbs water vapour from the air until it reaches its equilibrium rnolslllf8 content lor Ihe respective ambient conditions: Slorlng a building' material until it has reached ils eqUIlibrium moisture content constant weight in various humidity conditions enables a hygroscopiCity graph to be drawn for tIlat specific rnatertal Fig.
However, tile majority ollnsulaUng materials exllibit neither. The transport of moisture In flat roofs IS normally by way of water vapour dffiusion. Onoo the moisture oontent has reached a sufficiently 'high lavel, capillary action begins In building malerlals lhal exhibit capillarity.
Even il 8 much greater Quantilyof moisture can be Iransporled by c. Ction than by vapour diffusion. The reasons lor this are as lollows:. This Is the case, for example. Cold'8jlp1l11d sell JIoI O! WhiCh means Ihat they 1 be used Wit! The thermoplastic ibehaviotlrof bitumen is explolletl during layIng as well.
In the fOlJl1 01 e naked flame or hot gas telt torching. Mopping Is a method In whl. However, this melhodis no longer used on Ilal roots these days. There are also self-adhesive bitumlllOl. In this case a back- 1ng: In all cases the method ollaying must guarantee adequate protection against wind suction forces. Ane cracks term In the cap sheet due to the rollins and unrolling.. Water can seep Ihrough these cracks and so the waterproofing effect iSOf1ly acblsvad by melting the plies log.
A minimum of two plies is Iherefore the norm. The lull bond ensures thai any creeks are closed Bilurnen Ilexlble sheeUng is supplied in rOilS 1 m wide and up 10 20 m long. Unf,ike lIexible sheeting based on bitumen.
Synthetic flexible sheeUngls generally laid loose. AI most. Ills relatively easy 10 remove synthetic flexible sheeling and so II should be preferred 10 bitumen flexible sheetil1g where this aspect is relevant.
Great care must be taken at seams and joints When laying synthetic Ilexibte sheeting. Various JoInting rnethcds can be used anne Joints between synthetic flexible sheeting or bew Waterproof sheet,ing made from ethylene copolymer bitumen ECS is menuracrcred from granulate in an extrusion process with a central glass fleece inlay.
The granulate, the raw material, consists of a mixture of ethylene and bitumen. The glass fleece ensures dimensional stability. ECB sheeting is re,slstant 10 aquecessckmons of acids and bases. II can sUlI be welded even after many years, thus faCilitating repairs 10 damaged areas,.
A slip layer e. Only through the addition 01 stabilisers can PVC be made resistanllo UV radiation and the effects 01 the weather. As pure PVC is!
The r8f'1ga 01 possible modificalio! As emissions oi plasticisers contained In PVC are possible under csrtaln clrcomstarees, coruect with oertain materials should be aVOided, e. PVC lIexlble sheeting is not resistant to organic solvents e.
Compared with other synlhetic waterproofing' materials. It has a low resistance [0 vapour diffusion. But a positlve aapsct Is mat flexible sheeling made from PVC can still be readily reDalred 'even man!
DOlE 1 Base sheoet: PolWIO '! Qcl B 6d men, tab. Impermeable coocr,ele slab! IS walerprooflng laye. A separale waterprOOfing material is unnecessary because the concrete is wslerlighl and diffusionresistant Hov..
The insula. Bfticular type of insulating system because atthough the concrete is impervious. Impermeable concrete slabs can be built lor any length of span encountered In normal Slructures and can even be constructed in prestressed concrete.
The concrete slab must be designed and consuucted according, to the requlremenls for concrele wilh a. Miners'lwoollnsulaHon in co. In some: The variation wilh IIlsulatlon on Ihe outside has provedilsell superior in practice because Internal insulation can quickly lead to moislure-related damage in theevant 01 incorrect design or pODrlNOrkmanship.
The edges olltteroof can be finished with kerbs, corruces.
A kerb, Which must be at least 15cm: TI11s functions like a bund wall, r,etaining, precipitation so thaI it cannot simply drain over the Kerbs can also enclOse layers of gravel or planUngand also help to stiffen the rool structure. Parapets should include joints thai extend down as far as the kicker. Additional longitudinal rainrorcemsot will be required below thes'e Joints to prevent cracking.
Wnere the rool slabovemangs,. Large concrete slabs Inc rude joints to divide them into seclions. Roof overhangs, cantilevering slabs and parapets also need joints to compensate for lhe higher iherrnatloads to which they are sxooseo.
JOints within the root surface must be bordemd by kerbs that are at least Scm higher than the kerbs around the perimeter 01 the roof to ensure that any water 00 the rool surtace stays clear onnese joints.
Kerbs adjacent 10 jOints are atso necessary for canlileverilig slabs, Additional dowels bars to control cla. Joint filling- mal'erials must allow sufficient movement of me concrete slab st the joints.
All JOints must be reliably sealed ano liquid synthetic materials are ideal here, The waterproofing: An impermeable concrete slab sl'1ould be supported on a ring beam via some form of sliding bearing because the Ihermalloads on the slab can causa considerable ohanges in length. A gn root represents a Quality Increase for any living or working environment. Ihe roof is nOI generally accessible.
A green roof pertonns a number ollunctions. It protects the waterprcofing agalnall. In this case the rooftop structures do not require fixings thai penetrate the waterproofing. Plants reduce the radiation reHected from the reot sortace. That In turn resuns in a lower operating temperat.
As they create new areas 01 greenery. Intllmlv I plMtln9 wlth Wi! Garman landscape Research. A green root requires spacial care and maintenance. DIN 'Sports groundsParl4: Sports tun!
The Rooftcp Plal1ting Directive classifies green roofs accordlngl to their lalL A special drainage layer is required for designs wJth a la.
Green roofs should therefore be designed with a fall. In practice, however. As the Please find details to our shipping fees here. Recommended Retail Price. Print Flyer Recommend to Librarian.
More options … Overview Content Contact Persons. Frontmatter Pages i-iv. Download PDF. Contents Pages Preface Pages Get Access to Full Text. Part A.
Introduction The evolution of the flat roof Schittich, Christian Pages Part B. Part C.
Pages More Detail Drawings Here. A Selection of Detail Drawings by Categories. This is just a Small Sample from our Drawing Library. Internal Works. Timber Frame. In a warm deck roof the insulation is positioned above the structural deck and no ventilation is required. Throughout the course of the year the roof deck and all below it is kept at a temperature close to that of the inside of the building, therefore the roof structure is protected from extremes of hot and cold, lessening the potential for damage caused by thermal movement.
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