Taian Taidong Engineering Materials Co., Ltd.
  • Taian Taidong Engineering Materials Co., Ltd.
  • Home
  • About
    Introduction
    Culture
    Concept
  • Product
    Geomembrane
    Geotextile
    Drain board
    Geogrid
    Geonet
    Other
  • Honor
  • News
  • Case
  • Contact
Home > Product >
  • Geomembrane
  • Geotextile
  • Drain board
  • Geogrid
  • Geonet
  • Other

Opti green roof Drainage Boards

Simply complete the form below, click submit, you will get the price list and a Taidong representative will contact you within one business day. Please also feel free to contact us by email or phone. ( * Denotes a required field).

  • DIADEM® - Drainage boards - greenuptheroof.com

    Flow-delay retention board with CE marking made of recycled high-impact polystyrene 25 mm high stepped barrier form with deep-drawn recessed

    Get Price
  • Green Roofs - Systems with Drainage Plates

    SYSTEMS WITH DRAINAGE PLATES. DESCRIPTION: Green roof systems of this type are drained by waffled plastic sheets called “drainage plates”. Water is retained within pockets on the upper sides of the drainage plates; excess water spills over the edges of the plates and is carried off the roof.

    Get Price
  • GreenGuard XPS Drainage Channel Insulation Board ...

    GreenGuard XPS Drainage Channel Insulation Board for use in Protected Membrane Roof Assemblies Requiring 40 psi or 60 psi ... Green Roof Design: 3 Must-Haves for Your Next Commercial Project ... Drainage channels are cut along all 4 sides of the board at .5 inches deep and .25 inches wide. When placed facing down in a protected membrane roof ...

    Get Price
  • Green Roof Drainage Board Green Roof Drainage Board ...

    Alibaba.com offers 1198 green roof drainage board products. About 21% of these are waterproof membrane 16% are other earthwork products and 1% are other plastic building materials. A wide variety of green roof drainage board options are available to you such as waterproof membrane other earthwork products and other plastic building materials.

    Get Price
  • TekDrain GGF 20/200 Green Roof Drainage Board

    TekDrain GGF 20/200 Green Roof Drainage Board. TekDrain GGF 20/200 Green Roof Drainage Board after İzoTeknik 5000 or İzoTeknik 6500 is laid over the root retainer folio TekDrain GGF 20/200 Green Roof Drainage Boards are laid side by side in plates without overlapping on these two layers. Following this operation GeoTeknik 1100 PP is laid over the TekDrain GGF 20/200 Green Roof Drainage Board.

    Get Price
  • Green Roof Drainage MatStair Treads Corner Guards Floor ...

    This necessitates the use of green roof drainage mats to ensure proper drainage of the top soil. There Green roof drainage mats come in various designs all of which still ensure effectiveness. Green roof drainage mats are of different types. First there is a 2-ply drainage mat which allows water to drain from the vegetated roof.

    Get Price
  • J-Drain Dimple Drain Boards - Central Construction Supply

    J-Drain Dimple Drain Boards. Dimple drain boards are used to channel water away from foundation siding helping to relieve hydrostatic pressure as well as channel water away from the siding. A self-adhering water barrier is required for behind the dimple drain board …

    Get Price
  • DRAINAGE LAYER - Q37 350 - RIBA Product Selector

    DRAINAGE LAYER (Q37 350) Search Go. Results per page 1-25 of 28. Axter drain. Drainage board designed for use in intensive green roof systems. ... A drainage board typically used in sloped green roofs and against foundation walls. ... manufactured from solid rubber and used in intensive green roofs and over underground structures.

    Get Price
  • Moy Materials | Waterproofing and Insulation Specialists

    Our green roof partners APP Diadem supply a wide range of drainage boards to suit even the most challenging planting schemes. Paralon membranes will retain their root repellent characteristics for the lifespan of the roof system. An intensive green roof will offer the widest possible variety in planting and landscaping choices

    Get Price
  • Green Roof Systems | Green Roofing Solutions | Products ...

    Green Roof Systems. With the German evolution of modern green roof technology in the last 4 decades more and more green roof systems have been developed and existing systems or green roof components have been improved. There are multiple manufactures that offer different green roof solutions for any size of roof.

    Get Price
  • Waterproofing | Drain Board Drainage Board Protection ...

    Discount Waterproofing Drain Boards Drainage Mat Waterproofing Protection Board systems and more ... Items Deck Coatings Drains EPDM Eternabond Fasteners Hardware and LPG Metal Goods Paint Supplies Pipe Flashings Roof Coatings Roof Hatch/Vent Roof Repair Roof Tiles Rope Safety Products Snow Guards Support Systems Tarps ... Drain Board Drainage ...

    Get Price
  • American Hydrotech Inc. - Green Roofs Garden Roofs ...

    The popular Garden Roof® Planning Guide – American Hydrotech’s comprehensive guide to vegetative roofs – is available for free as an iPad Android and Windows tablet app. The Guide covers everything from technology and materials to proper planning and design installation and maintenance – from concept to completion.

    Get Price
  • Green Roofs - Systems with Drainage Mats

    Compared with green roofs systems using drainage plates or granular drainage this system is the fastest to install and creates the thinnest and lightest green roof assembly. However its water storage and drainage capacity is limited so it is primarily used for sloped roofs not suitable for Drainage …

    Get Price
  • GREEN ROOF WATERPROOFING SYSTEM - Sika (NZ) Ltd.

    1.1 The Sarnafil Green Roof Waterproofing System is a ballasted green roof for concrete roof structures ... 2.3 The design and installation of the drainage board filter sheet and ballast is the responsibility of the ... Dead loads for green roofs can increase if the drains become partially or completely

    Get Price
  • Green Roofs - Systems with Drainage Plates

    SYSTEMS WITH DRAINAGE PLATES. DESCRIPTION: Green roof systems of this type are drained by waffled plastic sheets called “drainage plates”. Water is retained within pockets on the upper sides of the drainage plates; excess water spills over the edges of the plates and is carried off the roof.

    Get Price
  • HDPE Green Roof Waterproofing Drainage Board

    Hdpe green roof waterproofing drainage board construction specification. 1. Please store the low price hdpe green roof waterproofing drainage board in stocks in a dry and ventilated environment to prevent exposure and keep away from the fire. 2. Please lay or lay the drainage protection board vertically. Do not tilt or cross the horizontal ...

    Get Price
  • GreenGuard DC14 Drainage Mat | Insulation | Kingspan | USA

    With drainage channels on both sides it permits easy drainage for water and allows air movement between the siding and sheathing to help keep the wall dry. Because DC14 is made of extruded polystyrene (XPS) it does not absorb moisture and is not a food source for mold. The board is effective with fiber cement wood and foam-backed vinyl. It is ideal for drainage and drying behind stucco and ...

    Get Price
  • SOPREMA Products | Roofing | Overburden

    Roofing — Overburden. Type. Board. Drainage Mat. Green. Roofing — Overburden. ... SOPRADRAIN Ecovent 2 is a geometrically patterned core drainage mat designed to eliminate hydrostatic pressure on vegetated roofs foundation walls retaining walls planter and plaza decks while providing a protection fabric for the waterproof ...

    Get Price
  • TekDrain GGF 25/200 Green Roof Drainage Board

    TekDrain GGF 25/200 Green Roof Drainage Board. TekDrain GGF 25/200 Green Roof Drainage Board is a material made of high density polyethylene HDPE resistant to plant roots and decay preventing dehydration of plants on non-rainy days assisting holding water with high compression strength and high strength.The same situation also applies to new drainage and water reservoir plate ISO DRAIN ...

    Get Price
  • Green Roof System | Urbanscape

    Urbanscape Drainage System with buffer. The Urbanscape Drainage System with buffer is a double sided drainage and reservoir board made from heavy duty recycled polystyrene with excellent load bearing capacity specifically designed for green roofs.

    Get Price
  • American Hydrotech Inc. - Green Roofs Garden Roofs ...

    The popular Garden Roof® Planning Guide – American Hydrotech’s comprehensive guide to vegetative roofs – is available for free as an iPad Android and Windows tablet app. The Guide covers everything from technology and materials to proper planning and design installation and maintenance – from concept to completion.

    Get Price
  • Green Roof Systems - Elmich

    VersiCell is an efficient lightweight high strength interlocking drainage module that captures and transports high water volumes and protects the waterproofing membrane. VersiCell is Ideally suited for use in intensive green roof systems where load weight bearing capacity and efficient drainage is …

    Get Price
  • GREEN ROOF WATERPROOFING SYSTEM - Sika (NZ) Ltd.

    1.1 The Sarnafil Green Roof Waterproofing System is a ballasted green roof for concrete roof structures ... 2.3 The design and installation of the drainage board filter sheet and ballast is the responsibility of the ... Dead loads for green roofs can increase if the drains become partially or completely

    Get Price
  • Green Roofs - Systems with Drainage Mats

    Compared with green roofs systems using drainage plates or granular drainage this system is the fastest to install and creates the thinnest and lightest green roof assembly. However its water storage and drainage capacity is limited so it is primarily used for sloped roofs not suitable for Drainage …

    Get Price
  • MedO DM12 Drainage Board | Radmat - Green Roof Systems

    MedO Green Roof Systems. MedO DM12 Drainage Board DESCRIPTION. Radmat DM12 is a drainage board consisting of a non woven needle punched geotextile filter layer thermally bonded to one side of a 1.2mm deep HDPE (High Density Polyethylene) cuspated core. DM12 is effectively impermeable one side.

    Get Price
  • Green roof system structure - Sempergreen

    Purple-roof 0-30° Flat and shallow pitched roofs are ideal for a green roof. The system structure for a water-retaining purple roof consists of a drainage layer with filterfleece a needled (not hard board) mineral wool that retains 90%+ of water by volume a specific non-proprietary soil recipe and a …

    Get Price
  • XF Drain- Green Roof Drainage Solution

    XF 3111 Synthetic Green Roof Drainage Composite . Extensive Vs Intensive Green Roofs. A green roof is also called a living roof eco-roofs and vegetative roofs. It is a roof of a building or home that is partially to completely covered with vegetation. Roofs that have potted plants or container gardens are not generally considered green ...

    Get Price
  • Green Roof Solutions from Elmich Australia

    VersiCell is an efficient lightweight high strength interlocking drainage module that captures and transports high water volumes and protects the waterproofing membrane. VersiCell is Ideally suited for use in intensive green roof systems where load weight bearing capacity and efficient drainage is …

    Get Price
  • HIGH-PERFORMANCE GREEN ROOF DRAINAGE BOARD

    HIGH-PERFORMANCE GREEN ROOF DRAINAGE BOARD. INDEX DRAINROOF TECHNICAL MANUAL 1. Introduction 1.1 Generalities 1.2 Use of the product 1.3 Functionality ... for the construction of green roofs and green coverings. The element is installed on the waterproofing membrane of the slab and acts as a rainwater drainage and

    Get Price
  • Drainage layers | Growing Green Guide

    On modern lightweight green roofs plastic drainage sheets or boards are the preferred drainage materials. Plastic drainage layers may be rigid open mesh structures that allow unrestricted drainage of water or they may have a cup-style ‘egg carton’ design that enables water to be stored at the base of the profile (see image below). The ...

    Get Price
  • Green Roof Drainage - Central Construction Supply

    Green Roof Drainage JDR Enterprises Inc. is a leading manufacturer and supplier of greenroof drain components. As the market for green roofing develops the proper design and understanding of green roof components is imperative.

    Get Price
  • J-Drain 400RB Drainage System 4x50 ft 21 GPM for ...

    J-Drain #400RB Drainage System for Irrigated Green Rooftops 4x50 feet 21 Gallons/Minute/ft core flow. Pre-assembled 2-layer drain system (filter cover w/dimpled drain mat). For sloped or irrigated roofs. Price/Roll. (shipping leadtime 1-3 business days)

    Get Price
  • Green roofs - Q37

    Drainage board designed for use in intensive green roof systems. BAC Canalis Boards designed to retain water below the growing medium on extensive roofs where soil thickness is at a minimum.

    Get Price
  • Designing Green Roofs for Stormwater Management - rcabc.org

    Growing Media Water Storage Layers Drainage Boards ... • Green roofs delay and reduce peak flow and reduce the total runoff volume; thus lowering the burden on the sewage system • Many municipalities have policies or programs to promote LID’s for stormwater management

    Get Price
  • Typical Extensive Installation 2017 - Green Walls Green ...

    glti green living roof panel consisting of: hdpe drain board heat woven hdpe root stabilizer anti erosion non woven needle punched water retention mat roof deck wall assembly roof deck wall assembly typical green living roof panel / ctem assembly *no stone ballast in hurricane areas typical green living roof panel / ctem assembly edge ...

    Get Price
  • MedO - Radmat | Waterproofing Systems | Green Roof Systems

    MedO is a green roof solution that utilises established green roofing technologies in a simple and straightforward way. A variety of green roof solutions can be created - from low maintenance sedum matting and wildflower meadows to landscaped roof gardens with lawns shrubs and water features.

    Get Price
  • Greenroof Green Roofs | J-Drain Greenroof Solutions

    JDR Enterprises Inc. is a leading manufacturer and supplier of greenroof drain components. As the market for green roofing develops the proper design and understanding of green roof …

    Get Price
  • M-Tray® Modular Green Roof - Wallbarn

    Our M-Tray® has been specifically designed to make sedum roof installation quick and easy – with minimum disruption to the plants and the structure they are going onto – and to provide a seamless verdant finish – an instant and sustainable green roof.

    Get Price
  • ABG blueroof | Blue Roof System | Attenuation Drainage on ...

    ABG blueroof - Blue Roof System ABG blueroof offers a new concept in the management of storm water on a green or brown roof.The patented blue roof system utilises the roof construction for the attenuation of stormwater releasing it at a controlled rate in the period following the storm.

    Get Price
  • Green Buildings Ordinance - Denver

    A Green Buildings Ordinance was approved by Denver City Council on October 29 2018 and took effect Friday November 2 2018. On November 15 2018 Community Planning and Development (CPD) held an open house discussing the flexible options available for buildings under the new ordinance. CPD and ...

    Get Price
  • Drainage Boards for Foundation Waterproofing - The ...

    Foundation Drains. Drainage is a key element of any waterproofing or dampproofing system. Surface drainage is the first opportunity to mitigate water infiltration but it is very difficult to keep all water away from foundation walls-both surface water and ground water can lead to problems.

    Get Price
  • ROOF CONSTRUCTION AND TRIM CARPENTRY

    ROOF CONSTRUCTION AND TRIM CARPENTRY The previous chapters have dealt with framing wood structures including joists studs rafters and other structural members. These constitute “rough carpentry” and are the main supports of a wood-frame structure. (Subflooring and wall and roof sheathing strengthen and brace the frame.)

    Get Price
  • Drainage Products - Central Construction Supply

    Foundation Wall Drainage; Golf Course Drainage; Green Roof Drainage; GridGuard Pipe Protection; Patio and Paver Drainage; Pedestrian Plaza Deck Drainage; Pet Turf Drainage; Playground and Athletic Field Drainage; Retaining Wall Drainage; Soil Netting Drainage; Split Slab Drainage; Tile Drainage; Transportation Edge Drain; Transportation Trench ...

    Get Price
  • EVAGREEN - ICB

    Drainage the top side of the board. The board is 25 mm in thick and is made of recycled high layer 1.38kg/m2 Waterproofing 1.7kg/m2 100mm thick insulation 6kg/m2 399.08kg/m2 EVADRAIN TECHNICAL DATA: To be used as a water retention and drainage layer on extensive semi-intensive and intensive green roofs.

    Get Price
  • Protection layers | Growing Green Guide

    Green roof plants; Green facade plants; Green wall plants; Plant establishment; Urban food production; Green roofs for biodiversity; Construction and installation. General advice; Green roofs. Roof deck; Waterproofing green roofs; Protection layers; Drainage layers; Filter sheet; Substrate Properties; Substrate for Green Roofs; Vegetation; Leak ...

    Get Price
  • Drainage of Extensive Green Roofs - uni-hannover.de

    Drainage of Extensive Green Roofs 1. Development of the designs for extensive greenings. In the optimization of the designs for extensive greenings the thickness of the drainage layer was initially minimized to the degree which is necessary for drainage and from a plant-related point

    Get Price
  • A guide for specifying green roofs in Australia ...

    Plastic drainage sheets or boards are common drainage materials for green roofs and are installed as a continuous layer. Plastic drainage layers may be rigid open mesh structures or they may have ...

    Get Price
  • ABG blueroof | Blue Roof System | Attenuation Drainage on ...

    ABG blueroof - Blue Roof System ABG blueroof offers a new concept in the management of storm water on a green or brown roof.The patented blue roof system utilises the roof construction for the attenuation of stormwater releasing it at a controlled rate in the period following the storm.

    Get Price
  • Waterproofing | Drain Board Drainage Board Protection ...

    Discount Waterproofing Drain Boards Drainage Mat Waterproofing Protection Board systems and more ... Items Deck Coatings Drains EPDM Eternabond Fasteners Hardware and LPG Metal Goods Paint Supplies Pipe Flashings Roof Coatings Roof Hatch/Vent Roof Repair Roof Tiles Rope Safety Products Snow Guards Support Systems Tarps ... Drain Board Drainage ...

    Get Price
  • Columbia Green Technologies - green roof systems ...

    Just lay out the trays on the roof and fill them with growing media and plants! Each of the individual functions found in the layered green roof system is inherent to the tray thus eliminating the need for separate drainage mats water retention mats root barriers and filter fabric. • Our tray is designed for Stormwater Management.

    Get Price
  • Specialist Construction Products - Wallbarn

    Wallbarn supply innovative top quality green roof systems decking paving landscaping and waterproofing products for use in the construction industry.

    Get Price
  • DuxxBak Decking | Composite No-Drip-Through Deck ...

    Use genuine Green Bay Decking fasteners or equivalent. All fasteners must be located a minimum of 3/4” from the ends of the deck boards. Additionally any necessary face fasteners should be placed near the deck board structural septum but not directly through the …

    Get Price
  • Net Yapı

    Maxidrain 20 Perforated Drainage Boards Maxidrain 25 Perforated Drainage Boards Maxidrain 40 Perforated Drainage Boards Maxidra 60 Green Roof Drainage Board Maxilit Substrate Maxidrain FW 400 Root protection layer GK 500 Protection/Water Reserve …

    Get Price
  • Columbia Green

    Columbia Green Technologies provides the best green roof or amenity deck system for your project not a one-size-fits-all approach. Our systems maximize plant health stormwater retention and drainage for a beautiful finished product long term.

    Get Price
  • FOTD living green roof - Appropedia: The sustainability wiki

    Living green roof Green roofs or living roof is a roof designed to be partially covered or fully covered by vegetation and a growing membrane. This is all built over a drainage layer to prevent water build up. Under the drainage layer there is a waterproof layer that allows the water to run off.

    Get Price
  • Opti - 24 Photos - Information Technology Company

    In a major initiative Philadelphia is building an extensive network of rain gardens green roofs wetlands and other infrastructure to capture stormwater. The goal is to prevent runoff from overwhelming sewers and polluting waterways and to help green America’s fifth-largest city.

    Get Price
  • Flat and Low Slope Roof Conversion to Pitched Gable Roofs

    Flat or low slope roof conversion to sloped roof design: this article describes and illustrates the construction of a sloped gable roof over the flat-roofed home shown above. The original tar and gravel low slope roof lasted many years but ultimately a combination of roof age wear ponding and leaks led the owners to construct a gable roof over this building.

    Get Price
  • Green Roof System - Urbanscape Architecture

    Urbanscape® Green Roof System elements. Urbanscape® Green Roof is a complete system which consists of a root membrane a drainage system a growing media – a unique patented rock mineral wool – and a vegetation layer.

    Get Price
  • GREEN ROOF SYSTEMS - netyapi.net

    green roofs retain and recycle water and so free the sewage system from overloading. it is a balanced way of water management. the excellent insulating properties of a green roof keep buildings warmer in winter and cooler in summer cutting heating and air conditioning costs. the air contains more moisture and is healthier to breathe.

    Get Price
  • Integrated Solar Green Roofs are for the Greedy

    What is a green roof? Green roofs a bit less familiar than solar panels are roofs covered completely or partially with vegetation. Green roofs protect roof membranes while enabling flora to grow through an integrated root drainage and soil system. They reduce energy bills boost property values and are attractive to customers and investors.

    Get Price
  • How to install a green roof | MNN - Mother Nature Network

    How to install a green roof. ... such as thin foam ‘fan board’ insulation or perhaps a layer of building felt.) ... The horizontal leg of the supports can be slipped under the drainage mat and ...

    Get Price
  • GREEN ROOF CONSTRUCTION - myrooff.com

    It is a good idea to consult green roof construction drawings so that proper alignment can be done at each place. Major consideration should go toward making decisions about the effective load of the green roof the type of soil that can be used and the vegetation that can easily grow over the roof.

    Get Price
  • Ruislip green roof retrofit on a tube depot London - Susdrain

    Ruislip green roof retrofit on a tube depot London. ... One section (South) has a drainage board with 65mm of extensive green roof substrate and the other section is using an experimental approach. Both roofs are vegetated with sedum cuttings and seeded/planted with annual and perennial wildflowers. The two sections are separated by a ...

    Get Price
  • Design and Engineering Information | LiveRoof Hybrid Green Roofs

    With a focus on hybrid green roof systems this course provides an overview of green roofs including system options and design and specification considerations such as plant selection irrigation mitigation of wind pressure and fire risk sloped applications and warranty options.

    Get Price
  • Deckdrain | Drainage Geocomposite System | Structural ...

    Deckdrain Drainage Geocomposite ABG Deckdrain is a high performance geocomposite drainage system. Designed to provide an environmentally friendly alternative to traditional structural drainage techniques it provides high flow capacity and added protection to waterproofing.

    Get Price
  • Green Roof Solutions from Elmich Australia

    VersiCell is an efficient lightweight high strength interlocking drainage module that captures and transports high water volumes and protects the waterproofing membrane. VersiCell is Ideally suited for use in intensive green roof systems where load weight bearing capacity and efficient drainage is …

    Get Price
  • Roof Drains Technical Data - jrsmith.com

    A siphonic roof drain looks much like a traditional roof drain. The distinguishing feature of a siphonic roof drain is the air baffle. This air baffle is engineered and tested to prevent air from entering the piping system at peak flows. Other than the baffle a siphonic roof drain has the same features as a traditional roof drain including a ...

    Get Price
  • Drainage Products | Minerals Technologies Inc.

    Drainage of water is a critical issue in the design and construction of a structure. AQUADRAIN will collect and channel water away from the structure. For split-slab deck construction AQUADRAIN provides an avenue for water to flow to drains at the level of the waterproofing membrane …

    Get Price
  • GREEN ROOF LAYERS - myrooff.com

    Drainage Layer – The green roof drainage layer provides you with a way to ensure there is nothing getting through and that excess water is drained away to avoid any waterlogging or increase in weight on the roof. The green roof drainage layer thickness makes sure that nothing can go wrong below offering a solid and effective guard.

    Get Price
  • Internal Drainage Boards | Association of Drainage Authorities

    Internal Drainage Boards. Each internal drainage board (IDB) is a public body that manage water levels in an area known as an internal drainage district where there is a special need for drainage. IDBs undertake works to reduce flood risk to people and property and manage water levels for agricultural and environmental needs within their ...

    Get Price
  • Composite plastic grass lawn grid
  • 2mm HDPE Geomembrane certified by ISO9001 for Water Conservancy Project
  • CL-S PP Spunbond Nonwoven Fabric Making Machine for Hygiene Products
  • draingage board
  • *2018 Tri-dimension Compound Geocell/ 3D Composite Geonet for Drainage/ Drainage Tri-dimension Composite Geonet Lasted
  • Commercial woven weed barrier / geotextile polypropylene weedblock landscape fabric with powergrid
  • CL-SS PP Spunbond Nonwoven Fabric Making Machine for Cleaning wipes
  • Non-woven geotextile for road traffic 300g m2,polyester fiber geotextile
  • waterproof membrane bentonite mat geosynthetical clay liner
  • HDPE Septal membrane/drain board for Roofing seepage control or thermal-protective coating
  • Building Material Wire Mesh Fence Panel Welding Machine
  • 6D/64mm geotextile material recycled polyester staple fiber

Taian Taidong Engineering Materials Co., Ltd.

  • Taian, Shandong, China
  • 86+15163896475
  • [email protected]
Phone:15163896475

About

  • Introduction
  • Culture
  • Concept

Product

  • Geomembrane
  • Geotextile
  • Drain board
  • Geogrid
  • Geonet
  • Other

News

Contact

Sitemap | Geotextile Virgin / Recycled PP Fiber 7Dx64mm Dope Dyed Color Nonwoven Polypropylene Fiber | geotextile for flooring/made in china geotextile | 700g m2 geotextile non-woven fabric |
Taian Taidong Engineering Materials Co., Ltd.