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Solar and renovation patterns Introduction to Using Patterns in Architecture A pattern describes the essence of a part of architecture. Each pattern description serves as a guide, a recipe, a model, which tells how that part of architecture fits into larger patterns and of what smaller patterns it may be composed. We describe a pattern in terms of how people relate to each other and with their environment, how a feature of a building protects from weather, of what materials it is constructed, the history of its use. By combining these patterns harmoniously, one aims to streamline the operating efficiency of a building in order to make it as self-sufficient as it is comfortable, beautiful, and enduring. Surprising to many people are the benefits of this attention, which results in the type of home or office they appreciate immediately for its grace and elegance, for comfort and safety, and for its endurance and liveablity as time passes. The patterns in this design section show how to make the most out of existing or new buildings. In addition, when combined synergistically with the New Materials Strategy the patterns multiply their effects in order to cut expense and energy needed to construct and maintain. When thinking of our home, the foremost thought would be for our physical well-being and for the spirit of protection of our resources. By resources, I mean financial resources required not only to create the shelter, but also the resources required to continue daily in this task. By resources I mean the effort we are required to expend because we live there. By resources I mean the resources from our earth environment employed for shelter. For this reason the patterns and materials used to build need emanate from Nature and act within Nature. Imagine that a home receives its nourishment from our Earth environment the same as we draw breath from the air. Let us aim for the harmonious result of this desire. This book is organized in such a way that the index is built into the book and references to other patterns related to the one being described are included. Enduring Qualities Useful forms of building provide the best use of available materials for the greatest yield. These patterns formulate enduring qualities which will definitely benefit the homeowner every day. Centuries of architectural thought and experience bring us to the present time when more than ever consumers are considering the future. Wisdom uses the best of the past to create the future along with many new discoveries made along the way. The patterns in this volume combine ancient wisdom with fresh outlook. Design Orientation to the sun, setting to weather and site are the most neglected considerations today, yet these are important for comfort, longevity and efficiency. By giving attention to these the owner adds beauty and resale value to any property. Consider also this old maxim: secure foundations, a good roof and a weather resistant wall coating mean a building has "a good hat, a good coat, and a good set of boots." *Cartoon Illustration: house wearing hat, boots, coat, sunglasses. Paybacks Some new building materials and designs make possible lower operating and maintenance costs and give paybacks when used wisely. For instance: installing high thermal efficiency windows with thermal mass with thermal insulation, each with no operating costs, yields a leveraged payback. This type of improvement, while paying dividends for an extended period extends the useful life of the property and protects the original investment. Of course any improvement does enhance property value, but changes which generate more yield per input, make a substantial contribution to daily lifestyles. The Potential for Solar Energy Calgary is blessed with a free and abundant natural resource: Sun. Nearly every site has heat and light available to it which is wasted. But now, this wasted energy can be included, making a standard renovation into a solar energy renovation. There is so much sunlight falling on the roof, walls, windows and grounds, seeing how to let it in requires only a new idea, found on almost any page, or reflected within your own thoughts. The open porch or veranda provides a means of extending the boundary of the living space into the landscape on any side of the building. The entrance, coming over the veranda shelters the doorway, also giving visitors and persons fumbling for the right key a civilized place to see and be seen before entering. The drawbacks to consider are the shading of windows which transmit desireable direct sunlight. On the sunny side at noon (#___), an overly wide overhang will cut this light down below the window even in winter unless there are glass panels in the roof (Skylight #___) above the window. On the morning side and evening side, the sun's angle is lower allowing penetration any season. The veranda would be appropriate especially on the west to provide shade if the windows are large or numerous, and if the rooms overheat there would be an alternative to air conditioning (#___). That way the rooms will stay cooler, and everyone has a nice place to sit in the evening. New Technology Here is how to use new technology for incredible strength, beauty and simplicity, with benefits surpassing anything ever seen before to cut operating costs and maintenance problems. #___Generating Operating Energy at Home Most buildings do not use designs for generating their own energy to operate - even the latest construction - yet more than ever new products and designs are available on a larger scale and at better cost to the user. #___ Sub Patterns: Solar energy for space heating (see#___), insulation (See #___), photovoltiac (See #___). Mass walls are effective in building capacity for solar energy into a building without moving parts and maintenance. Massive walls work with fireplaces and windows to collect and store heat for the night or for the week. They hold up the roof and even out temperature swings in the building from changes in the weather and excess sunshine and heat. See#___Rammed Earth and #___Passive Solar #___Solarium, #___Greenhouse #___Sound deadening See #___Cellulose Materials Structural and Other Changes The most dramatic, incredibly attractive renovation which also gives a tremendous boost in comfort and lowers operating costs is to use the attic space. Now it is possible to completely change the roof with rapid construction techniques and materials which are actually superior in performance. See (#___ Structural Panels, #___ Clerestory Windows, #___ Solar Energy Renovation, #___ Dormers). We take over the attic so that the ceiling will be high, or to gain loft space, and to let in the noon sun in Winter(#___) which gives the solar heating and extra light. To employ the attic space, we add to or replace all or part of it with a new structure, possibly composed of the Structural Panels (#___),and then extend the lower walls up to meet the new roof. To make a great change in overall looks and performance consider the clerestory renovation: simplicity to accomplish, the essence of what solar renovation and breathing space means to anyone looking for a grip on radical change they can afford. The clerestory renovation consists of windows in the attic with the ceiling removed and requires replacing or adding to the roof with the structural panel system (#___) and installing windows(#___) into a slot between sections or breaks in the roof to let the light in from above. With the clerestory we can change nearly everything which can't otherwise be changed about the way the streets are laid out and the orientation of the building. Clerestories change the orientation of the building for solar energy and lighting and heating purposes while at the same time paying back the operating expenses. Also see Dormer (#___). With the new materials, construction is fast. The improvement in insulation is awesome, and it transforms an ordinary home on a ordinary street or avenue into something the original developer and city planners would never have dreamed possible. See Solar Orientation (#___) Excellent for focusing new sunlight into all living spaces, the Dormer is like a pop up through the roof with a window facing the sun. Adding a dormer can also add insulation and efficiency, increase floor space, and provide a special loft (#___)place or room addition (#___), up one level. In most cases the success of a dormer as an option depends on the orientation of the existing roof structure relative to the desire to make it a solar dormer with sunny exposure. Although a dormer may in fact face any direction, it helps if it can draw in the noon Winter sun (#___) and perhaps it can be turned in the right directon even if the roof on which it sits is not sloping in that direction. The roof configuration of a dormer may accent or blend with the rest of the building and need not follow any preconceived idea of what is a dormer roof: flat, shed, peaked, arched, round, tilted, hip, etc. Stairwells will spread light downward into other parts of the house with dormers or lights from the top. Experiment with shape, notice how much sun falls on the roof where it will come through, and imagine the light in the room(s) below. On a small scale, it lets sun and air into the room. Darker rooms could become the brightest rooms with this simple change. Inside the room, walls extend from the new window down into the room through the ceiling like a skylight. The advantage of a dormer over a skylight is that it can face the sun and that the window is vertical rather than sloping - easier to open, more leak resistant, larger, better insulated. The shape of this small dormer could be squarer and taller, or shorter and fatter, rounded like a tube or flattened like a wedge. If only an individual room is to be changed, the medium dormer fits onto one or perhaps parts of more than one room, leaving other parts of the building intact. The Medium Dormer pierces the roof, lets in the sun, and creates space above either for headspace or for a loft. The walls in the room are extended upwards. Guests or avid readers may appreciate the spare out of the way refuge of a loft(#___)and dormer incorporated into a study, office or spare room. The loft may have a stair or only a ladder for access. When there is a need for a whole new level, or an open ceiling room, balcony, bedroom, or other, the large dormer or several smaller ones can re-arrange the roof structure to fit the new space. A very large dormer is like adding a second floor and of course requires framing the floor joists and supporting them. The addition, which is what it really could become, requires stairs and could require a new ceiling on the room below, but not necessarily if the new floor can be installed with floor framing raised slightly so as not to press down on the ceiling below. The strength of the existing walls and window headers (beams across windows) need to be checked and additional strength possibly added along the floor rim. The wall can be extended for the second floor a foot or so on top of the floor joists which hold up the second floor. Handling major changes to a roof can best be accomplished by removing the entire roof structure on the section of the building affected, both halves, for this size of undertaking. . Change for the better, though: the consumer will appreciate structural panels' (#___) rapid construction, superior insulation and strength for open ceilings as in dormer construction. The dormer pattern follows the sheltering roof pattern recommended by professionals and preferred by adults and children who like cozy homes. The really nice advantages to build in are coziness and appreciation of the sky (#___), closet space (#___), drama of the stairway (#___)and soundproofing(#___). In order to create an opening to light an area, while preserving the existing roof, the skylight is a good choice, especialy suited to a smaller area, or where direct sunlight is needed for plants. In some situations and homes, plants require Summer or Spring sun which is higher in the sky and can only come in through that angle in the roof, but the roof must face properly. See Summer Sun(#___ ). Bonus Points By combining new building panel system with capturing the sun: Bonuses
Design Patterns look at circulation of traffic, activities, the available space and light, favourite desireable features. Luxury features may actually be useful necessities as part of the whole operation of the home, so it is wise to include them to be used easily and well. After all, that is what a home is for, but not just as an impractical dream, but very useful and beautiful at the same time. (Cartoon: Front door open saying goodbye to guests, piles of snow drifting in Piles of hats and coats and boots , a baby with icicles playing on the floor and a man in a hat and coat on his easy chair reading the paper.) #___Sheltering from windy blasts (See also #___Landscape) #___Space to hang coats and for boots Childrens Rooms have need for small windows for them to see out, lots of sunlight and warmth and a relation to the world of freshness out side(See Clerestory #___, and also Loft#___) #___Large open spaces: Multi-use rooms Which room is which - location within the whole Sizes, heights, amounts of light required Features and comfort necessities for YOU Ideas which have big benefits and low cost (See #___Features, #___ Interior Decor, #___Display of Artwork)) Features Indoors, for less than one could imagine, planters situated as dividers and screens add purity and beauty. There is so much sunlight falling on the roof, walls, windows and grounds, seeing how to let it in requires only a new idea, found on almost any page, or reflected within your own thoughts. Glass provides heat, connects with the outer world and focuses the interior decor. #___ Height and size of Window openings Careful attention to window placement increases the class of home to a higher level with no increase in cost. Let light further back into the building and heat more in the winter time. The header or beam above the window must be placed as high as possible and be made only as high as needed for strength. The overhang above the window should not block winter sun, but shade only summer sun. Overhangs may have glass panels like skylights added in overhanging verandas. Higher window openings give more of a view of the beautiful skies, regardless of the view at lower eye levels. The requirements for light, privacy, heat, the direction of exposure, determine the window position and size (See #___Solar, #___Lighting and Decor). In a private space, glass blocks (see #___Glass Blocks), and light diffusing frosted glass or sandblasted designs can screen and let in light, while adding to the decore and scattering the light. For rooms with need of privacy, Clerestory Windows (See #___) let in brilliance and heat while preserving privacy (See Children's Rooms#___). During a sunny cold spell, my personal favorite experience is to lie like a dog in the sun for a few minutes. I call it a day at the beach, because it's so relaxing and therapeutic, especially during a cold snap. It surprises me to notice how few opportunities there are in most homes to do this: it seems dogs have it better than us humans in this world. I love this experience and the beautiful streams of warmth and I am sure you would too when it can be so easy to create. An awareness of sunlight makes the task simple. How Windows Collect Energy* The radiance of the sun contains energy vibrations of different types, most noticeable of which are visible light and heat. Each radiant energy has similarities in that they shine, can be reflected and absorbed. But heat radiation can be trapped behind glass inside after passing from outside. Heat will radiate through glass, but some types of windows prevent more heat from passing than others. The windows which keep the heat from passing are called Low e or High efficiency. There are ways to make more heat pass in and less heat pass out through the window. #___New Thermal efficient windows* Sunny windows are a very dramatic change. First ingredient from the solar recipe multi-pattern above #__they make the house warm when the sun shines and have the following benefits just by themselves: Bonus points
#___ Light Collection, Conduction and Diffusion System (LCCD)* This system uses pure light energy to light and heat. Direct use of solar energy in the form of light is the most efficient use of the sun's energy for lighting and heating. Windows are the primary source of the light and heat in most rooms, but a system of Collectors and waveguides conducts the light energy wherever it is required in the building and has other interesting abilities. The light collection and transmission system places light energy where it is required for light and heat. Sunlight radiant energy, supplemented by artificial light energy (See #___Photovoltiac) and Infrared heat energy when required can be adjusted by filters to have the necessary spectrum. The supply of light can be automated for filtering, for adding artificial wavelengths of light and heat energy in the system. Visible light is a higher frequency than Infrared light which is longer wavelength radiation, but they in many cases can be conducted within the same waveguide system because radiant light and radiant heat can be reflected and conducted through the system. If only the visible light is required, the ifrared wavelengths are filtered before entering the system or before entering a zone in the system. The waveguide tubes situated in the details of the walls and ceiling also diffuse the light and carry the light because of micro prisms on the inside surfaces of the tubes. The angle of incidence of the light travelling in the tubes on the micro prisms determines if the light is radiated out from the transparent tube or carried further. The advantages of the Light collection conduction and diffusion system (LCCD) are that: Light energy is used directly for heat and light
In the manufacture of Structural Insulating Panels (See#___) , panels will be provided with the waveguide system in each panel which joins to the next. The house will have pre-installed lighting with installation of the panels if required. In front of glazed openings, angled roof surfaces reflect the sun into the room, boosting the amount of light and energy Additions(with drawings and cost figures)* A wonderful type of addition extends the spacious feeling of the connecting existing spaces, and also provide a heating boost to the old section as well. A few changes in the old part to let in the extra light and heat transforms the entire home, especially if the addition emphasizes a sunny exposure. Bonus: Insulating old and adding new.
The subject of additions will be covered in a subsequent volume. #___ Engineering. Engineering the renovation ensures that the building will be long-lasting and meet regulations and codes for structural strength. (See ___ Roles in Building). Pre-engineered building systems solve engineering problems with specially designed and manufactured panels sized to fit structural requirements within a formulated building system for rapid construction. (See #___Structural and Insulating Panel System.) #___ Solariums (with drawings and cost figures)* Incorporating a solarium is a wonderful, effective way to create a sunny, open feeling, especially when combined with doors and openings in the walls. The sunspace contributes a fresh aroma of growing plants , warmth, humidty and a powerful gain in solar heat production to share with the rest of the house. The solarium can be used as a passage or new corridor between existing rooms or to the outdoors. Solariums have great capacity to collect heat energy, and they can collect enough to overheat. At night, losses of heat back through the glass and can actually cost to heat.
The Solar rammed earth wall stores the sun's heat from a sunny day so that later when no sun shines, the wall will warm the space, or at least tend to keep the temperature more even. A massive wall is an effective way to guard against wild temperature swings in areas which can gain or lose much heat such as a solarium. A solar mass wall is part of the building, therefore it is passive, right? and requires no machinery and so on because it operates because of the design of the building. Thermal shutters work very effectively on a solarium because of the large amount of glass exposed to the night sky which loses heat immediately the sun goes down. Shutters close the windows against the sky and control heat gained or lost. (see section on Insulation - pattern#__ Thermal shutters) #___ French doors open to garden and also open to house* Such a classic feature as French doors in the right place really has a touch of practical elegance, and what better place than into the garden or the indoor garden - the solarium. French doors join the spaces together or close off the solarium if it is too cool or for any other reason. For the outside passage doors also see Airlock #__ if the door will be used as a regular entry to the home. Sliding patio doors could be used, especially recycled ones to lead from solarium to house because the weather seal is not critical from inside solarium to inside house, so that anything which slides all right on the track works fine. Bonus Points
#___ Three Season Deck Enclosures* Patio covers cost less to install than a full solarium, yet offer many of the same benefits. Entertaining or relaxing during cool or rainy spells doesn't stop with enclosed deck. Three season deck or patio enclusures work well except in the coldest winter periods. (See Thermal Functions above.) A patio cover encloses an existing deck or patio offering extra shelter from wind and rain. During the cool days, the sun will still make the area warm enough to sit out, protected from the cold or wind. Bonus Points
#___ Mass (with drawings and cost figures)* The formula for least maintenance and cost which gives the most satisfying effect in my opinion includes mass (plus insulation and sunlight), since mass is part of the structure and requires no special maintenance or costs to operate. See also #___Earth Materials #___Rammed Earth Theory of Mass and Sun (See Passive solar) Bonus points:
Multiplying effect if mass combined with any or all of: thermal radiation source, thermal insulation, high efficiency windows and thermal shutters.
#___ Heating (with drawings and cost figures) Bonus Points By combining radiant heating system with new flooring retro-fit* must explain how the radiant heat tubes are installed in a solid mineral concrete floor in a house which is already built. A. Retro fit hot water B. Hypocaust waste or solar heat Bonus Points
#___ Lighting and Electrical (with drawings and cost figures) Next to brulliant use of natural light in the design, artificial lighting adds high value for the costs invlolved if the effect is carefully considered. Various lighting options for multi-purpose spaces and highlights are easy to incorporate before the electrical work commences, and as such appear to set a properly lit home apart from an ordinary utilitarian specification. It is wise to plan for lighting ahead of time because the wiring has to be installed into the walls before they may be finished and painted.* Various types of lighting emit different spectra of light which change the appearance of the walls, furniture and artwork. The focus of beams of light, diffuse in a general area or spots of more brilliant light greatly determines the atmosphere. The provision of artificial light can enhance and blend with natural lighting in dawn and twilight hours, and in the night time breathe life into the palette of subdued, lively and functional areas according to needs. #___ Compact flourescents*picture of compact fluor. screws in standard socket By just changing a bulb the electric bill is lower, especially for lighting which is left on a lot. Compact fluorescent bulbs use 1/8 of the current for the same light and now are less expensive than ever. Several different types fit into fixtures, lamps and potlamps, spotlamps. (See #___ Display of Art, #___ Decor and Display.) They last longer and cost less than for the quantity of incandescent bulbs used during the same period of time. The appearance of light from compact flourescents is suitable for most lighting situations because it is not harsh. They screw into existing fixtures in many cases and in the case of pot lamps and spots a special bulb and fixture are need. To try one in various situations, they are available in the grocery or hardware store. Of the two types of compact fluorescents, the high frequency type with its own solid state electronic ballast which excites the gas in the tube to fluoresce at a resonant frequency will not flicker at all, although the other coil ballast type will not show any noticeable flicker at 60 cycles per second the standard alternating house current supplied in the mains. #____ White Light Emitting Diodes (WLED). While expensive, WLED lighting lasts up to 11 years in continuous operation and operates at 95% efficiency. This matches with photovoltiac systems or where very low power is available. Many WLED units need to be clustered or distributed to provide levels of light to which we have become accustomed, but lower levels from one to three WLED's still offer reading and workspace illumination. Photovoltiacs generate electricity for home use, lower our dependence on oil and gas, cut air pollution and create self-sufficiency with less drain on the system. These solar panels pay a dividend on the investment, and make the home self-sufficient partially or totally from any electric bill whatsoever. Photovoltiac installations convert sunlight into usable electric power. Depending on the use requirements, which of course are lowered with the flourescent bulbs, A system of $4, 000, could power the whole house and appliances, except electric dryer or stove. The durabilty is excellent, over 40 years for some of the major expensive parts of the system: the Solar Photovoltiac Panels. Photovoltaic Cells convert light energy into electrical energy. The electrical energy can be stored in batteries or fuel cells for liberation later. One piece in the system converts the battery energy of direct current into the alternating current found in the home today, or of course direct current may be used for lighting and some appliances, or both may be used throughout the house for different purposes. Some studies suggest there exists evidence that alternating current is harmful to the health and the cause of cancer and other degenerative or immune system diseases, whereas direct current has no rapidly fluctuating electrical field which is thought to be harmful. Section on painting and decorating giving the advantages and costs with the maintenace benefits. #___ Painting and Decorating #___ Floors #___ Features #___Indoor Planter Indoors, for less than one could imagine, planters situated as dividers and screens add purity and beauty. #___ Artwork #___ Display of Art* In order to add value in the interior, lay out places for display of artwork such as functional items or fine arts and sculptures, figurines, collectibles, textiles and pottery, wood turnings and carvings. (See #___ Lighting) *Raised surfaces , niches, shelves, display cabinets, frames built into or onto the the walls for the mounting of paintings cost little to install but greatly increase the value of the home. Incorporate artistic detailing which adds richness, setting off the overall decor, texture and colour scheme. Consider the architectural details in the planning which blend, enhance and reinforce a theme which can develop from even one small piece of art. The creation of unity and harmony which a theme gives must also be considered in view of the enduring appeal of the result, so that the room or rooms, even if eclectic and a blend of styles, are liveable in the forseable future or can be adapted to life's demands of family, entertaining and lifestyles. #___ Sculpture and objet d'art Cartoon: Two people looking at some art on the wall or shelf and making a comment. Paintings and wall hangings Fill in benefits and savings with costs for typical installation. To shade the sunny side in summer (#___), yet allow the sun into the windows in winter, use deciduous trees which lose their leaves in the Fall on the sunny side, Morning side perhaps and Afternoon side perhaps. The use of the trees will depend on the windows and the existing landscaping and renovation plans. To shelter the Shady (Windward) side(#___), use bushes and trees for their winter colour, such as evergreens having windbreak qualities or shrubs having decorative colour, such as red bark or other distinguishing feature. #___ Appearance
Indigenous or natural types of plantings mean less yard work. An indiginous plant is one which is found growing wild in the local environment. The amount of effort required to sustain a grass lawn is very substantial when compared to placing natural plants in the design of landscape. The idea is to have plants which are resistant to the climate without a lot of care, which cover ground and regulate their growth within the overall landscape pattern and use little water. The look is natural and planned at the same time, with something for every season to add colour and beauty any time of year. See #___NatureScape. #___ Xeriscape: Plants and Species A water efficient way to landscape Xeriscape represents an important strategy for saving on the water bill and taxes. Installation of the water system costs milions of dollars to the taxpayer and increasing the capacity of that system costs many millions more, which is a waste if we really do not need it for the same result. In times of drought, the Xeriscape will make it through because it is drought tolerant. The Xeriscape has many benefits:
Permaculture design looks at natural patterns and assists combining plants and animals for the benefit of the environment and the people. The aim is ta have the most yield from the least input. These methods yield efficiency and profit. A related discipline, called Holistic Resource Management concentrates on using animals to improve land, and is also practiced on some Alberta ranches. Permaculture or Permanent Agriculture is one method of arranging our agriculture, our relationship with nature, in an harmonius and beneficial design system which follows the rules of nature. The principles of Permaculture are that the parts of the ecology form a whole and that we limit what nature will produce. The goal of permaculture is to sustain the environment and the value system of permaculture is that 'resources' are not automatically meant for our consumption. The term permaculture is registered for use only by approved practitioners and the word was coined by Bill Mollison who started the first formal study and practice of consciously appreciating the relationships we have within Nature. Permaculture - A Designers' Manual by Bill Mollison. Published by Tagari Publication, Tyalgum Australia. Creating habitat, whether on an urban lot or neighborhood, rurally or in between is NatureScaping. Each region has a different climate and land, which support sets of plants and animals in each bioregion. We attempt to create habitat by plantings and by making homes for animals on our land with the resources available. Since human settlements have encroached severely on the homes of animals and on where plants grow, this is putting back a little of what can never be fully replaced by urban sprawl, pollution, highways and perfect lawns. NatureScape Alberta Creating and caring for wildlife habitat at home, by Myrna Pearman and Ted Pike. http://www.naturescape.ab.ca/ Federation of Alberta Naturalists http://www.fanweb.ca/ #___ Roads, Drives and Parking* #___ Implementation #___ Sewer & Water #___ Garage Could be used for workspace, hobby, etc. Valuable part of property Mortgage Broker % return and monthly payments #___ Rental Properties (with drawings and cost figures) #___Structural Panel* ( originally part of structural patterns and other changes) A wonderful example of Simplicity and Strength, structural panels figure in the creation of the most dramatic renovations possible in your dreams. These one piece panels for roofs and for walls allow more freedom to build open ceilings with strength and resistance to cold weather. These panels are CMHC approved and tested. Their composition and strength make for rapid construction in the hands of professionals. No Framing is needed to span across the entire room in the house in most cases. Only the tops of the walls around the edge are required to hold up the roof. The cost of these panels is less for installation and the results cannot be duplicated with any other building material available to the consumer today at any cost. See #___Use the Attic. Structural panels insulate the roof or wall with a continuous, unbroken barrier. They resist condensaton far better than frame construction, and they require no vapour barrier because of their tight seal. The roofing material can be applied in the factory as can the interior surface if desired Since they use very little lumber, and are composed of a more regenerative species, Aspen, the panels have environmental benefits. A sandwich of two outer stress layers and an internal thick insulating layer gives the panel both its strength and insulating qualities. Panels are supplied in various thicknesses according to the span required and the degree of insulation specified for the situation. Sizes range from four foot by eight foot panels to the largest eight by 24 foot panels with any size in between to suit each project. In addition, the contractor or manufacturer can join panels together to form continuous one piece structures. Waterproof membranes applied in the factory are sealed on the seams on site with special equipment. New and ecolocically improved panel systems have been and are under development and are described elsewhere. They have similar benefits and qualities and are used in the same and more advanced ways. See #___New Materials and #___Light Clay and #___Cellulose Materials and #___Plant Materials. |
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