Ebook Construction technology: An illustrated introduction - Part 2
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Ebook Construction technology: An illustrated introduction - Part 2
Ebook Construction technology: An illustrated introduction - Part 2
Roof Coveringslile and slate materials171Slates175Plain tiles175Interlocking tiles176Timber shingles176Bituminous shingles176Pan tiles177Spanish and R Ebook Construction technology: An illustrated introduction - Part 2 Roman tiles177Edges and abutments178In the previous chapter on roof structure, we reached a stage in construction where there was a waterproof layer over the structure the understating1 fellor membrane. This is not a long-term solution to keeping the building watertight but is frequently used short- Ebook Construction technology: An illustrated introduction - Part 2 term to allow internal work to proceed while outdoor work continues, dependent on weather conditions, at the same time. 1 his makes good use of that sEbook Construction technology: An illustrated introduction - Part 2
carce commodity, time. Eventually the underslating membrane will have to be covered over with something a little more permanent, and that is what thisRoof Coveringslile and slate materials171Slates175Plain tiles175Interlocking tiles176Timber shingles176Bituminous shingles176Pan tiles177Spanish and R Ebook Construction technology: An illustrated introduction - Part 2 tions and changes in direction. As a finale, complete details of basic roof edges will be given. We will not consider metal or plastics roof coverings in this text except for the necessary lead work at abutments.1 Some in the industry al ways refer to this layer as undertiling felt or membrane (oven Ebook Construction technology: An illustrated introduction - Part 2 if it isn't felt); others always refer to it as an understating felt or membrane. One could bo pedantic and always apply the correct term in relationEbook Construction technology: An illustrated introduction - Part 2
to the final materials used. Is it a bituminous felt or a plastic membrane? Is it slate or tiles which are being laid? It makes little difference to Roof Coveringslile and slate materials171Slates175Plain tiles175Interlocking tiles176Timber shingles176Bituminous shingles176Pan tiles177Spanish and R Ebook Construction technology: An illustrated introduction - Part 2 board slate and tiles, to around one-fifth scale. They may not be as life-like but they have the benefit of using less manual effort to set up and allow annotation to be added with a marker pen. We hope they arc useful.Figure 7.1 is a photograph of several terraced houses with roofs at different lev Ebook Construction technology: An illustrated introduction - Part 2 els. Note how the roofs arc covered with a membrane, and that membrane is held down by timber strapping running up the roof over the rafters. These arEbook Construction technology: An illustrated introduction - Part 2
e the counterbattens. There are also at least two horizontal straps, again to help hold the membrane down. A roof light can be seen above the prominenRoof Coveringslile and slate materials171Slates175Plain tiles175Interlocking tiles176Timber shingles176Bituminous shingles176Pan tiles177Spanish and R Ebook Construction technology: An illustrated introduction - Part 2 and man-made, sizes, colours, techniques for all sorts of situations -they all abound in this one area of construction. The easiest way to come to terms with it is to set out much of this information in a table, Table 7.1.When laying any of these units it is obvious that they must overlap adjacent Ebook Construction technology: An illustrated introduction - Part 2 units all the way down the roof slope, forcing rainwater to flow from one waterproof surface to the next.172 Const ruction TechnologyFig. 7.1 I lousesEbook Construction technology: An illustrated introduction - Part 2
ready for rwf tiles.So we can group these units according to the type or number of laps they require.Cutting across the material differences, the firRoof Coveringslile and slate materials171Slates175Plain tiles175Interlocking tiles176Timber shingles176Bituminous shingles176Pan tiles177Spanish and R Ebook Construction technology: An illustrated introduction - Part 2 imber shingles and plain tiles require a double lap; the interlocking tilesand bituminous shingles only require a single lap. The double lap is only necessary in the direction of the slope; laterally all units rely on a single lap. To help illustrate these laps a short series of photographs has been Ebook Construction technology: An illustrated introduction - Part 2 prepared where the emits were modelled by rectangles of card, something which students can do for themselves to help their understanding and visualisEbook Construction technology: An illustrated introduction - Part 2
ation of double lap joints in particular.Figure 7.2 illustrates the double lap fixing of plain tiles or slates. The work always starts al the eaves anRoof Coveringslile and slate materials171Slates175Plain tiles175Interlocking tiles176Timber shingles176Bituminous shingles176Pan tiles177Spanish and R Ebook Construction technology: An illustrated introduction - Part 2 iles or slates of whatever type as units.So the bottom of the mock emits is the bottom of the work the eaves. The first course,table 7.1 I lies and slates - malerials, fixing and laying method.MaterialMan-made/naturalProductFixed direct to sinkingFixed Io battensLapNaturalSlates from Wales, Cornwall Ebook Construction technology: An illustrated introduction - Part 2 , Lake District, Scotland, Spain and ChinaYesDoubleSlateYesArtificial slateMan-made of asbestos or silica fibre in orcSlates which are recognisable asEbook Construction technology: An illustrated introduction - Part 2
artificialYesYesDoubleReconstituted slateMan-made of slate particles in resinSlates which attempt to imitate the natural productYesYesDoubleClayNaturRoof Coveringslile and slate materials171Slates175Plain tiles175Interlocking tiles176Timber shingles176Bituminous shingles176Pan tiles177Spanish and R Ebook Construction technology: An illustrated introduction - Part 2 es; plain or interlocking. Colour and texture addedNoYesPlain tiles double; interlocking tiles singlelimberNaturalShinglesYesNoDoubleBituminous feltMan-madeShinglesYesNoSingleClayMan-madePan tilesNoYesSingle with special side lap arrangementsClayMan-madeSpanish and Roman tilesYes and can be bedded i Ebook Construction technology: An illustrated introduction - Part 2 n mortar on a concrete slabYesSingle with special side lap arrangementsRoof Coveringslile and slate materials171Slates175Plain tiles175Interlocking tiles176Timber shingles176Bituminous shingles176Pan tiles177Spanish and RRoof Coveringslile and slate materials171Slates175Plain tiles175Interlocking tiles176Timber shingles176Bituminous shingles176Pan tiles177Spanish and RGọi ngay
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