Access order status and track shipments. Search for an order by NGP Order Number or PO Number and view tracking information from frequently used carriers. National Guard Products is known as a leading manufacturer of weather-stripping, threshold products, lite kits, louvers and glass for commercial wood and steel doors. Founded in 1935 NGP has become an ever advancing industry innovator, manufacturing a complete line of door seals, door thresholds, gasketing, intumescent fire seals, smoke seals, sound seals, door sweeps, door shoes, automatic door bottoms, lite kits, louvers, metal edges, astragals, continuous geared hinges and finger guard products. See Our Company's History Flood Shields are designed to help protect door openings and building contents from flood water. This unique product features a spring mechanism that maintains constant tension against the gasketing to create a solid flood barrier. View Flood Shield Catalog See All New Products Join Our Mailing List

Receive up-to-date product information, pricing and technical information bulletins.This information is provided free of charge by the Department of Industrial Relations from its web site at www.dir.ca.gov. These regulations are for the convenience of the user and no representation or warranty is made that the information is current or accurate. See full disclaimer at http://www.dir.ca.gov/od_pub/disclaimer.html. Go Back to Article 2 Table of ContentsLike most things, exterior doors are the sum total of many parts, each with a unique function and purpose. Knowing these different parts by name can be a big help when it comes to understanding performance. Frame is the outer structure in which the exterior door system is supported. It is most often made of wood to facilitate being fastened to the studs of the rough opening. Stiles are the continuous vertical supports in the exterior door. In a wood exterior door they are exposed. In steel and fibreglass the actual stiles covered by the outer skin.

Often the outside is embossed to have the appearance of stiles. Rails are the continuous horizontal supports in the exterior door. Their number can vary according to the design of the exterior door itself. Sill is the bottom portion of the frame against which the bottom of the exterior door rests when it is closed. If it is metal on the surface for durability, it is important that it incorporates a thermal break to reduce conductive heat loss. Bottom Sweep is the adjustable continuous barrier attached to the bottom of the exterior door to create an effective barrier to air leakage and drafts. Weatherstripping is a flexible continuous gasket that ensures a tight seal between the exterior door and the frame when the door is closed. Brick Mould is attached to the frame on the exterior side to create a finished overlap on the brick or side material covering the exterior of the building. Panels are the sections of the exterior door held in place by the stiles and rails.

On a wood exterior door, they are part of the construction. On steel, fibreglass, vinyl exterior doors they are embossed on the surface of the skin. Foam core is an insulating agent injected into the core of steel and fibreglass exterior doors.garage door repair surrey uk Glass inset is a glazed unit installed in the structure of the exterior door itself. wooden back doors with cat flapsThere can be one or more in an exterior door and they replace panels from a design perspective.magnetic door lock troubleshooting Side lites are the glazed units that can be incorporated on either one side or both sides of the exterior door.solid core door sydney

Transom is the glazed unit that spans the top of an exterior door entry system Previous: Wood, steel, fibreglass or vinyl?Exterior Door Energy Efficiency Ratings DOORS, ENERGY EFFICIENCY - CONTENTS: Guide to the energy efficiency of different types of exterior doors and exterior doors, door frames, door sweeps & seals. Doors, Exterior, Energy Efficiency Guide. Weather-Stripping Advice for Exterior Doors. POST a QUESTION or READ FAQs about building door energy efficiency ratings & products In this article we discuss the frame types for exterior doors and the energy efficiency ratings of exterior doors. We review the proper installation details for windows and doors, and we compare the durability of different window and door materials and types. In this article series we discuss the selection and installation of windows and doors, following best construction and design practices for building lighting and ventilation, with attention to the impact on building heating and cooling costs, indoor air quality, and comfort of occupants.

© , All Rights Reserved. As discussed in Best Practices Guide to Residential Construction Chapter 3, BEST PRACTICES GUIDE: WINDOWS & DOORS: In new construction, most exterior doors are purchased pre hung in a frame complete with adjustable thresholds, sidelites or transoms, and, in some cases, high-tech electronics, such as motion-sensor lighting and keyless ignitionThe frames come in a variety of materials from basic finger-jointed pine to low-maintenance frames clad in vinyl or aluminum. The most critical piece of the frame is the sill andMost today are extruded aluminum, often with a treated wood or composite subsill (Figure 3-24). Some have built-in channels with weeps to safely drain away water and many have an adjustable sill step, a helpful option since few of today’s doors can be planed or When purchasing a complete entry system, make sure that the components all come from the same manufacturer, since many distributors mix and match door slabs from one

company with more economical frames, hardware, or glazing systems from another, potentially voiding the warranty should some components fail. As reported in Best Practices Guide to Residential Construction Chapter 3, BEST PRACTICES GUIDE: WINDOWS & DOORS: Insulation values for entry doors range from about R-2 for solid wood to about R-5 for a fiberglass or steel door filledDoors with polyurethane foamThe values are lower than for a solid slab of foam insulation due to internal blocking and frameIn doors with glazing, the numbers drop However, because of a door’s relatively small area, conductive heat loss has little effect on annual fuel bills. Thermal breaks are important with steel doors since they help eliminate condensation around the door’s perimeter. Air leakage has the biggest energy impact since it can contribute to condensation, increased fuel bills, and discomfort Look for air tightness ratings similar

to windows, preferably below .10 cfm/sq ft. Equally important as the rating, however, is how the weather stripping holds up over time. generally performs well but is only available on steel Compression bulbs form a tight seal, but some materials lose flexibility in the cold or take on a permanentSilicone and EPDM both resist compression set and stay flexible in the cold. vinyl are less durable and less flexible in the cold. widely used weather-stripping material with a proven track record is Schlegel’s proprietary Q-Lon, a thermoset plastic that outperforms thermoplastics, such as vinyl, TPE, and Also look for a durable seal at the door There are many approaches to sealing at the threshold, including bulbs, sweeps, and interlocks that work in conjunction with the threshold to seal out water and air leakage (Figure 3-25 at left). One of the most effective approaches is an automatic sweep that retracts into a dado cut in the bottom of the door

and drops down only when the door is closed. available as retrofits for wood doors and will even work As noted in Best Practices Guide to Residential Construction Chapter 3, BEST PRACTICES GUIDE: WINDOWS & DOORS: -- Adapted and paraphrased, edited, and supplemented, with permission from Best Practices Guide to Residential See WINDOWS & DOORS our home page for window and door information, and also see WINDOW TYPES - Photo Guide for a photographic guide to window and door types and architectural styles. Our links listed at the "More Reading" links at the bottom of this article provide in-depth articles on window and door selection, inspection, installation, problem diagnosis, and repair. Continue reading at ENERGY EFFICIENT DOORS & WINDOWS or select a topic from the More Reading links or topic ARTICLE INDEX shown below. Or see ENERGY SAVINGS in BUILDINGS - home Or see WINDOWS & DOORS - home - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.