Hormann LPU42 L Ribbed Silkgrain (17 Colour Options) Insulated Sectional Door garage door Steel Hormann

Hormann LPU42 L Ribbed Silkgrain 17 Colour Options Made to Measure Sectional Door

The Hormann LPU42 L Ribbed Silkgrain made to measure sectional garage door is aimed at garages that sit outside the usual size brackets but still need a clean, modern look. Built in Germany to your specified opening size, it combines the wide horizontal ribs of the L profile with the smooth, fine textured Silkgrain surface so the door face fills the aperture properly and looks like it was always meant to be there. With purpose made sizes available up to 5500 mm wide and 3000 mm high, it is an ideal option for wider or altered openings where a standard size door would involve too many compromises.

Purpose Made Sizes up to 5500 mm Wide

This version of the LPU42 L Ribbed Silkgrain door is supplied in purpose made metric sizes to suit openings up to 5500 mm wide and 3000 mm high. It is particularly useful where the garage has been extended, the original builder did not follow standard width modules or a previous timber or up and over door left a non standard opening behind. Rather than packing around a near miss, the door, frame and panel layout are all designed to suit your actual structural opening, so the ribs line up correctly and the frame margins look balanced on both sides.

Because the size is confirmed at order stage, Hormann can also ensure that the springs and track system selected are appropriate for the door weight and headroom, and that the seal positions match your opening rather than a generic frame height. This makes for a more precise looking installation and better long term performance.

L Ribbed Silkgrain on a Custom Width

The L Ribbed profile uses broad horizontal ribs that create strong shadow lines and give the door a clear architectural presence. On a made to measure door, the rib spacing and panel layout can be arranged so the pattern fills your opening cleanly, avoiding partial panels or awkward gaps that sometimes occur when a fixed layout is dropped into a non standard space. This is especially important on wider openings where the L profile is at its best and small proportional mismatches would be very noticeable.

The Silkgrain surface adds to this by keeping the face of the door smooth and consistent, with just enough fine texture to give depth without drawing attention to small marks or reflections. The combination looks particularly at home on modern properties with simple wall lines, larger window openings and contemporary entrance doors, where the garage door needs to support the overall look rather than fight against it.

Silkgrain Finish for Modern Architecture

Silkgrain is the Hormann smooth, fine textured painted finish for steel sectional doors. The outer steel skin of each 42 mm panel is factory coated to give a silky, almost satin appearance that sits comfortably alongside modern window and entrance door finishes. The fine grain breaks up reflections and helps colours appear even and solid without looking overly glossy or plasticky.

In day to day use, the Silkgrain finish is practical as well as attractive. Minor surface marks and light scuffs are less obvious than they would be on a very smooth gloss surface, and the finish is easy to clean with mild detergents and a soft cloth or sponge. With 17 standard Silkgrain colours plus additional RAL options at extra cost, it is usually straightforward to match or complement existing cladding, render or window frame colours on the property.

Insulation and Weather Sealing

Structurally this door uses the proven LPU42 build. The panels are double skinned steel with a rigid polyurethane foam core and a thickness of 42 mm, giving a fitted door U value of around 1.3 W per square metre Kelvin when installed correctly. This helps to reduce heat loss through the garage, which is particularly useful where the garage adjoins the house or is used regularly as a workspace or store.

Because the door and frame are made to your sizes, the full perimeter rubber seals can be positioned to make consistent contact all around the opening. A flexible bottom seal helps to follow minor unevenness in the floor, and the plastic frame shoe at the base of each side leg protects this vulnerable point from standing water and corrosion. The sectional design opens vertically and runs back on overhead tracks, so there is no swing out onto the drive and you can park close to the door without obstructing its movement.

Electric Operation and Control Options

This made to measure LPU42 L Ribbed Silkgrain door is designed to work seamlessly with Hormann electric operators, and most customers choose to automate from the outset. The balanced spring system and smooth running track arrangement make it straightforward for a ceiling mounted operator such as the ProMatic or SupraMatic to move the door, even on wider sizes up to 5500 mm. With electric operation you typically use a hand transmitter, internal wall push button or optional external keypad to control the door, which is far more convenient than lifting it manually, especially in bad weather or when returning home after dark.

The ProMatic operator is well suited to many small and medium size made to measure doors and offers soft start and soft stop movement, adjustable force settings and built in lighting that comes on automatically. It is supplied with hand transmitters using Bi Secur radio technology, so the signal is encrypted and resistant to copying. The SupraMatic operator is the higher specification option, providing more pulling force and noticeably faster opening speeds, which is particularly helpful on wider double doors. Series 4 SupraMatic models also include additional features such as energy efficient LED lighting and built in Bluetooth, allowing control via the Hormann BlueSecur app on compatible smartphones when the relevant accessories are used.

Both operator types integrate with the wider Hormann Bi Secur control system, so you can add extra wall consoles, keypads, internal switches and, with the appropriate gateway, app based control for multiple doors and gates. Selected Bi Secur handset models can also show whether the garage door is currently open or closed, which adds a useful extra level of reassurance. The operator boom contains a mechanical locking feature that engages when the door is shut, helping to hold it firmly in the closed position and resist attempts to force it open from outside.

Safety Features and Long Term Support

Double tension springs and safety cables are fitted on both sides of the door to help control movement and provide protection if a spring should fail in service. When used with a ProMatic or SupraMatic operator, the system continually monitors the forces during movement and will stop and reverse the door if an obstruction is detected while closing, helping to protect people, vehicles and belongings in the opening.

Hormann supports the LPU42 L Ribbed Silkgrain made to measure door with a 10 year warranty on the door assembly for normal domestic use and separate warranty coverage for the operator and controls. With established German manufacturing, ready access to spare parts and a wide range of control options, this specification provides a long term, low maintenance and highly usable solution for non standard garage openings that need a smart, modern door.

Domestic garage door - low to medium useage.

Installation Instructions are provided with every door.

Warranty

Hörmann products are manufactured to the highest quality standards and leave our factory only after rigorous quality testing. However, if you should have grounds for complaint, this section tells you what our door warranty offers, and how to go about making your claim.

In the unlikely event of a warranty claim becoming necessary, please contact the dealer or distributor who originally supplied your garage door. Your dealer should then supply details of the claim, together with a copy of the warranty card provided with the door and proof of purchase to the Product Services Department at Hörmann (UK) Ltd. To enable your claim under warranty to be processed as quickly as possible, you should provide the following details:

1 Your name, address and telephone number

2 Original invoice with date of purchase

3 Product description/door type and product number

4 Description of defect

An assessment of the claim will then be made. This may require Hörmann to inspect the product in-situ. In the event that there is no legitimate warranty claim under the terms specified herein, you may be liable for the costs of the inspection visit. We strongly recommend that you take note of the care and usage instructions displayed on the stickers on the back of your garage door, and on the page opposite, and that you follow these instructions throughout.

Hörmann (UK) Ltd Garage Door Warranty

Warranty Period The purchaser is granted a warranty covering the safe and reliable function of the Hörmann garage door for a period of 10 years from the date of purchase. A 5 year warranty applies to springs, wire cables, track rollers, hinges and guide rollers. The warranty period for replacement parts is 6 months or to the end of the current warranty period, whichever is longer. In the case of foilcoated timber-effect, a warranty of 5 years is granted, for timber and GRP doors a warranty of 2 years is granted on the door panels alone under the terms and conditions specified herein. The door mechanism and steel frame (if applicable) is covered by the 10 year warranty period.

Requirements 

Warranty claims are only applicable in the country where the garage door was purchased. The product must have been purchased through our authorised distribution channels. The warranty only covers damage to the contract object. The fully completed warranty card together with the receipt of purchase correspondingly dated substantiates your right to claim under the warranty.

Performance 

During the warranty period we undertake to rectify any and all defects to the Hörmann product which can be proved to be attributed to a material or manufacturing fault. We pledge at our discretion either to exchange the defective merchandise for faultless merchandise, repair it or allow a reduction in price. We do not accept costs for dismantling and installation nor for carriage.

Replaced parts become our property.

The warranty does not cover damage caused through:

• normal wear and tear

• improper installation

• negligent care and maintenance

• improper initial and subsequent operation

• negligent or wanton destruction

• external influences such as fire, water, salts, alkaline solutions, acids, abnormal environmental influences

• mechanical damage through improper transport and fitting

• priming and other surface protection treatments

• incorrect or too late applied surface protection treatments

• repair by non-qualified persons

• using non-Hörmann parts without the approval of the manufacturer

• removal of the product number or making it unidentifiable

Electric Operator Warranty

A separate 5 year warranty is granted on our electric operators. This includes operator mechanics, motor and motor control systems. A 2 year warranty is granted on radio equipment, accessories and system controls. There is no warranty on consumables (e.g. fuses, batteries, bulbs etc.).

By always fitting a Hörmann operator, you are supplying a tried and tested solution, where the operator has been optimally matched to the door, and you can be assured that their Hörmann door and operator combination will provide reliable operation for many years. Therefore, if you fit a non-Hörmann operator on a Hörmann door, the customer's Warranty will not be valid.

User Information/Care

Finish - Steel Doors

The coating process applied to the door and chassis is environmentally friendly. Minor scratches or marks are not covered under the conditions of our warranty and should be repaired immediately to prevent corrosion and deterioration of the panel. Corrosive substances such as acids, alkalines, and salts, etc. should be cleaned from the door immediately; failure to do so will result in deterioration of the finish, which will not be covered under our warranty. Should deterioration of the finish start to occur you will need to repaint your door immediately. Prepare the surface lightly with wet and dry. Then treat with solvent based 2 pack epoxy wash primer and a normal commercial paint (cellulose paint must not be used). Hörmann steel doors are a finished product. They do not require re-painting on site. They are however not immune to damage, which can occur at any stage of the handling of the product from factory to site.

Finish - Timber Doors

Timber panels are coated with a neutralising base-stain. Doors must be stored upright, under cover, with wrapping intact, until wrapping is removed. As soon as the door is unwrapped, one coat of a good quality basecoat primer must be applied to both sides of the door. Immediately after installation, your timber doors require a further two coats of a good quality exterior wood finish on both sides. Initial application and periodic treatment should be carried out strictly in accordance with the woodstain manufacturer's instructions. Failure to follow these instructions will result in early deterioration of the timber panel.

Finish - GRP Doors

GRP door panels should periodically washed down using water. This should be done more frequently if fitted near the sea. Bird droppings will bleach the finish on GRP. and should be removed using water as soon as possible. GRP doors should not be painted over.

Paint Finish - Steel Doors

Minor surface damage can easily be repaired using touch up sprays or sticks without invalidating warranties.

Safe Operating and Maintenance of Hormann Garage Doors PDF >

Minimum door width for this product is 2000mm - if you require a door smaller than this size, please contact us to discuss sur-chargeable options.