Screen door professional in-depth analysis | Category, mesh, profile, hardware, installation selection guide

[Screen door real scene collection, high definition and high transparency flat door screen door, folding screen door, sliding screen door indoor real shot]

Screen doors, also known as screen doors and mosquito-proof screen doors, are important functional products in home improvement doors and windows. They are mainly used for entry doors, balcony doors, kitchen doors, and courtyard doors. The core function is to block mosquitoes and small flying insects, and at the same time ensure air circulation. When many owners choose screen doors, they only pay attention to the price, mistakenly thinking that screen doors are a layer of screen mesh with borders, and the threshold is very low. In fact, screen doors belong to door and window supporting system products, including profile frames, screen mesh materials, sealing structures, special hardware, track systems, buffer structures, etc. Screen doors of different structures have a huge gap in durability, field of view, anti-cat scratching, user feel, and service life.

There are many types of screen doors on the market, including folding screen doors, flat door screen doors, sliding screen doors, hanging rail screen doors, magnetic suction simple screen doors, etc. Many businesses confuse the concept and use simple models to pretend to be high-end system screen doors. This article expands from the dimensions of screen door classification, screen material comparison, profile standards, sealing and hardware, performance parameters, applicable scenarios, installation specifications, purchase and pit avoidance, post-maintenance, etc., taking into account industry expertise and reading habits of ordinary owners, suitable for home improvement owners, door and window dealers, decoration companies

[Schematic diagram of style classification | Comparison and marking of folding screen door, casement diamond mesh screen door, sliding screen door, hanging rail screen door, magnetic screen door]

First, the mainstream categories and structural characteristics of screen doors, selected on demand

Screen doors are divided into five main categories according to the way they are opened. The structural principles are different, and the suitable door openings and use pain points are completely different. This is also the first step to clarify the content of the purchase.

The first type is the folding screen door (organ-type screen door), which is often referred to as the 40-flat mesh folding screen door. Relying on the side scroll or multiple sets of hinges to fold and store, after opening, the screen is folded to the side, which does not occupy the passage space, and is suitable for large-width balcony door openings and courtyard entry doors. The advantage is that the field of view is transparent and the storage is simple; the short board is that the screen crease in the folding position is repeatedly bent for a long time, and the inferior model is easy to break the thread, which requires high track cleaning.

The second type is the casement diamond mesh window door, which is the same as the door opening method. It opens inward or outward. It is mostly made of 304 diamond mesh material, with strong rigidity in one piece. It takes into account mosquito protection, protection, and pet bite protection. It is preferred for high-rise, children, and cat families. The structure is stable and not easy to deform, but opening will occupy indoor or outdoor space. The narrow position of the door opening needs to be reserved for opening distance.

The third type, the sliding screen door, follows the sliding door matching, translates left and right to open, and is divided into two types: ground rail and hanging rail. The traditional ground rail sliding screen door has low cost, but the bottom track is easy to accumulate dust and trip the elderly; the hanging rail sliding screen door cancels the ground track, which is convenient for cleaning, but has higher load-bearing requirements for profiles and upper rails. If the profiles of large-size screen doors are thin, they are easy to sag.

The fourth type, the magnetic suction screen window door, is a simple model, the magnetic strip is adsorbed and closed, the installation is simple, the price is cheap, and it is mostly used for temporary use and rental housing. The disadvantage is poor sealing, weak wind resistance, and easy to disengage in windy weather. It is not suitable for long-term household and outdoor courtyard door openings.

The fifth type, the roller shutter screen door, the spring reel storage, pull the screen up and down closed, suitable for the kitchen narrow door opening, storage at the top, but the spring structure has fatigue life, after a few years easy to rebound weak.

There is no absolute best style. The large balcony door opening gives priority to folding screen doors; the need for protection and pet prevention gives priority to casement diamond mesh screen doors; the sliding balcony door is equipped with priority hanging rails and sliding screen doors.

[Comparison chart of gauze mesh material samples | Close-up of samples of high-transparency mesh, 304 diamond mesh, 201 diamond mesh, PET polyester mesh, and ordinary glass fiber mesh]

Second, the core analysis of screen material, the core consumables of screen window doors

Screen mesh is the core functional layer of screen window doors, and it is also the main reduction position of merchants. Different materials have great differences in tensile resistance, corrosion resistance, cat scratch resistance, and light transmittance.

Glass fiber mesh: old-fashioned traditional gauze mesh, the lowest price, light texture, but poor tensile strength, easy to be scratched by cats, rapid aging in the sun, generally 2-3 years brittle damage, now home decoration is rarely used as the main screen door.

PET polyester high-transparency mesh: Now popular high definition mesh, fine fibers, excellent light transmission and ventilation effect, transparent field of vision, almost invisible, suitable for owners who pursue beauty and do not like heavy mesh surfaces. The advantage is that the wind resistance is small and the field of vision is good; the short board is weak impact resistance, sharp objects and cats scratch hard and easy to break, suitable for indoor balconies and families without pets.

201 stainless steel diamond mesh: low-cost diamond mesh, low nickel content, humid environment, southern Meiyu, coastal areas, rust spots will appear in 1-2 years, rust spots will slowly spread, only suitable for temporary use in drying rooms, not recommended for long-term household use.

304 stainless steel diamond mesh: the mainstream of home improvement is preferred, the nickel-chromium content is up to standard, rust-resistant and corrosion-resistant, high hardness, impact resistance, cat scratch resistance, strong anti-theft protection ability, mesh commonly used 0.5mm - 0.8mm, mesh 1111 mesh, taking into account ventilation and protection, humid areas, low-rise courtyards, high-rise children's rooms are suitable, normal service life 8 - 15 years.

316 stainless steel diamond mesh: high-end model, stronger salt spray resistance, specially used for seaside, river, high humidity corrosion environment, rust resistance is better than 304, higher price.

There is also a parameter called mesh, which represents the number of mesh holes within one inch. The higher the mesh number, the smaller the mesh, and the better the mosquito barrier effect, but the ventilation and light transmission will decrease. Household routinely choose 11 mesh and 14 mesh, and there is no need to blindly pursue high mesh numbers. Many merchants falsely bid 304, but actually deliver 201 mesh, which is difficult to distinguish with the naked eye and requires detection solution identification.

[Detailed profile section | Aluminum alloy profile section of screen window door, marked with wall thickness, card slot, sealing groove, track structure]

Third, the profile frame standard determines whether the screen window door will deform and sag

The vast majority of screen door frames use aluminum alloy profiles, and a few low-priced products use recycled plastic frames. Screen doors are often overlooked: the width of the screen door opening is large, it needs to be pushed and pulled repeatedly to open, and the profile rigidity is insufficient. It will bend, close lax, and get stuck after a period of time.

The mainstream of aluminum alloy for home improvement screen doors is 6063-T5 aluminum profiles, which distinguish between primary aluminum and recycled aluminum. The surface of primary aluminum profiles is evenly sprayed, which is not easy to peel; there are many impurities in recycled aluminum, poor spraying adhesion, and easy to crack and fade.

The wall thickness of the profile is the key indicator: the conventional wall thickness of the frame of the folding screen door is ≥1.0mm. The flat-open diamond mesh screen door is under great force, and the recommended wall thickness is ≥mm. The upper rail of the hanging rail push-pull screen door bears the load, and the wall thickness cannot be lower than 1.4mm. Many low-cost screen doors have a wall thickness of only 0.6-0.8mm. Large-size screen doors are used for about half a year, and the door leaf sags, the track is twisted, and the switch is stuck.

Surface treatment is divided into electrostatic powder spraying, fluorocarbon spraying, and wood grain transfer printing. Indoor powder spraying is sufficient; outdoor, long-term sun and rain screen doors, fluorocarbon spraying is preferred, UV resistance, rain corrosion resistance, and not easy to fade. The precision of the profile card slot is also very critical. The matching degree of the card slot and the gauze mesh pressing is poor, and the gauze mesh is easy to loose and bulge.

[Close-up of hardware and buffer accessories | Folding screen door damper, flat screen door hinge, lock, rail pulley, windproof buckle]

Fourth, hardware, damping, windproof system, determine the use of feel and life

Screen door hardware is a special accessory, and door and window hardware can not be used, especially folding screen doors, hanging rail screen doors, damping, pulley, windproof structure directly affect the experience.

Folding screen door core accessories: damping buffer, windproof latch, hinge, bottom rail. Undamped folding screen door, after letting go of the screen quickly rebound and hit the frame, loud noise, long-term impact is easy to tear the screen; with damping buffer can be slowly closed, silent protection screen. Outdoor courtyard screen door must be equipped with windproof lock, strong wind will blow the screen derailment, tear.

Casement diamond mesh screen door: with special screen window hinge, multi-point lock, child safety lock. The hinge is divided into ordinary hinge, three-dimensional adjustable hinge, and the screen door slightly sags in the later stage of the three-dimensional hinge, which can fine-tune the upper, lower, left and right gaps; the child lock can prevent children from opening the screen door by themselves, which is suitable for high-rise buildings.

The hanging rail push-pull screen door focuses on the pulley. The pulley is divided into nylon silent wheel and stainless steel load-bearing wheel. The nylon wheel is silent and suitable for indoor use; the stainless steel wheel is wear-resistant and used in dusty gardens. Inferior pulley bearings are easy to wear, and push-pull cards and abnormal sounds appear in a few months.

The core of the rolling shutter screen door is the spring and the limiter, the spring is the loss part, the high-quality stainless steel spring has a long fatigue life, and the elastic force of the inferior spring decays quickly, and it cannot be retracted later.

Many merchants only quote the price of gauze mesh and profiles, and the price of damping, windproof parts and buffers is increased separately. When placing an order, it is necessary to confirm whether the accessories are all-inclusive.

[Schematic diagram of sealing structure | Sealing node of top strip and rubber strip around the screen door, closed gap sealing schematic]

5. Sealed structure to reduce mosquitoes from entering through gaps

Many owners have reported that mosquitoes can still enter after the screen door is installed. Most of them are not broken, but the surrounding seals are not in place.

Screen door seals are divided into two types: top seal and EPDM rubber strip seal. Push-pull screen doors and folding screen doors mostly use silicified tops. The tops need to be dense and not shed hair. Inferior tops are easy to fall over, lose hair, and the gap becomes larger; casement diamond mesh screen doors are mostly sealed with EPDM rubber strips. The rubber strips are more elastic and pressed tightly after closing, and the sealing performance is better than that of the tops.

Qualified system screen doors are continuously sealed around, and the corners are spliced in place without gaps. The gap between the door opening and the outer frame of the screen door should also be closed with foam and sealant. Many simple magnetic screen doors have large gaps in the splicing of magnetic strips, which is the main channel for mosquito invasion.

At the same time, attention should be paid to the windproof structure. In the windy environment of the high-rise, the gauze net is blown and deformed by the wind pressure, and the gap between the mesh surface and the frame is stretched. The windproof buckle and windproof aluminum strip are used to fix the mesh surface to resist the wind pressure and avoid insects entering the gap.

[Performance test map | Ventilation and light transmission test, wind resistance test, mosquito resistance test site]

Six, screen door core performance indicators, understand the parameters without stepping on the pit

A set of qualified screen doors, focusing on these features:

Anti-mosquito performance: uniform mesh, no broken wires, holes, mesh matching, blocking mosquitoes and small moths;

Ventilation and light transmittance: high transmittance of high-transparent mesh, low transmittance of diamond mesh, choose according to needs;

Wind pressure resistance: courtyard, low-rise windward position, wind pressure resistance level as far as possible ≥4, to prevent strong wind tearing net, derailment;

Impact resistance: Diamond mesh can withstand a certain impact, suitable for pets, children and families;

Repeated opening and closing life: high-quality damping, pulleys, hinges, normal opening and closing can reach tens of thousands of times;

Corrosion resistance: coastal environment priority 316 mesh + fluorocarbon profiles.

Here is a misunderstanding to correct: it is not the thicker the mesh, the better. If the mesh is too thick, the ventilation and light transmission will decrease, and it will block the field of vision. There is no need to blindly choose super thick mesh for home use. 0.5-0.7mm diamond mesh is enough to take into account protection and ventilation.

[Installation construction map | hole cleaning, frame fixing, pressing net, adjusting gap, sealing and closing construction]

Standardized installation process for screen doors, three points for products and seven points for installation

Screen door is a customized product, size error, installation is not in place, no matter how good the material will leak into the mosquito, card deformation.

The first step is to accurately measure the door-to-door, distinguish the interior, exterior, and middle, confirm the direction of the door opening, the wall of the door opening, and determine whether there is interference from the door cover and skirting line;

The second step is to clean the hole, clean the floating ash and bumps, and ensure that the installation base surface is flat;

The third step is to level the frame in place, correct the horizontal and vertical, and ensure that the closing gap is uniform;

The fourth step is fixed, the expansion screw or fixing piece is fixed, the fixed point spacing is in compliance, and the hollow wall needs to be reinforced;

The fifth step is to press the net, tighten the gauze, press the strip evenly, the net surface is flat and not loose, and it cannot be loose while tightening;

The sixth step is hardware debugging, debugging hinges, pulleys, dampers, locks, testing opening and closing, buffering effect;

The seventh step is to seal and close the mouth, apply sealant to the gap of the frame, and clean up the excess glue marks;

The eighth step of the test is to repeatedly switch on and off, check the closed gap, windproof, and buffer, and confirm that there are no mosquito gaps.

Common installation mistakes: gauze mesh is not tightened, corner bead is disengaged, gap is not glued, hanging rail is not reinforced, and later failures occur frequently.

[Scene real picture | Garden folding screen door, balcony casement diamond screen door, kitchen sliding screen door floor effect]

Eight, screen door selection suggestions for different scenarios

Villa courtyard entrance door: large width, priority with damping, windproof folding screen doors; 316 diamond mesh folding models for humid coastal areas;

High-rise balcony, children at home, cats: priority is given to opening 304 diamond mesh screen doors, with children's locks;

Balcony sliding broken bridge door matching: priority rail sliding screen door, no ground rail, easy to clean;

Kitchen narrow door opening: rolling screen door, does not take up space;

Rental housing, temporary transition: Magnetic simple screen door, cost-effective, but not suitable for long-term main use.

[Comparison of advantages and disadvantages | Comparison of flat and tight qualified gauze nets vs loose bulging, rusting, broken silk and inferior gauze doors]

Nine, screen door purchase pit avoidance guide, see through the industry routine

201 diamond mesh impersonates 304, and the humid environment quickly rusts;

Profile wall thickness virtual standard, recycled aluminum frame, short-term deformation;

Omit damping and windproof accessories, drain at a low price, and increase the price later;

The gauze mesh bead is not pressed tightly, the mesh surface is loose, and it is easy to enter mosquitoes;

High-transparency net pretends to be King Kong net, and the customer wants protection, but it will be broken as soon as it is actually caught;

Only the price of bare frame gauze is reported, and installation, gluing and accessories are charged separately;

The folding screen door hinge is reduced, and the large-width screen door is easy to bend and derail.

The contract states: gauze material, mesh specifications, profile wall thickness, surface technology, whether with damping and windproof, quality assurance years.

[Maintenance diagram | Track cleaning, gauze wiping, hardware lubrication and maintenance]

Ten, screen door daily maintenance, extend the service life

Screen doors are easy to maintain, and regular maintenance can greatly prolong the service cycle. Folding screen doors and sliding screen door tracks are prone to dust accumulation and hair stuck. Regularly use a brush to clean the track debris to avoid cards; wipe the gauze with a wet rag and neutral cleaner, do not use strong acids and alkalis; hinges and pulleys are small amounts of silicon-based lubricants every year, do not use oil, and are easy to stick to ash; check the sealing tops and rubber strips, and replace them in time for aging lodging; in windy weather, the courtyard screen door should be closed as much as possible to avoid strong winds tearing the gauze; if local holes in the gauze are found, make up the mesh or replace the gauze as soon as possible to prevent the break from expanding.

[Panoramic completion map | The overall floor effect of the large balcony folding high definition screen window door]

conclusion

The screen window door is not a simple layer of screen mesh, but a set of door and window supporting systems that take into account ventilation, mosquito prevention and protection. Many owners only look at the price and ignore the screen material, profile wall thickness, damping and windproof, and sealing process. After installation, there will be problems such as leaking mosquitoes, cards, rust, and torn screen.

The high definition and high transparency net is mainly beautiful and transparent, the 304 diamond net is mainly protective and durable, the folding screen door is suitable for large holes, and the hanging rail sliding screen door is mainly easy to take care of without ground rails. When choosing a screen window door, the core is to match the style and material according to the size of the door opening, the floor, whether there are pets, and the dry and wet conditions in the area.

High-quality screen doors, while isolating mosquitoes, do not block natural ventilation, and take into account home comfort; with standardized measurement, installation, sealing and closing, can be used stably for a long time. Only by understanding the professional parameters of screen doors and avoiding low-cost reduction routines can you choose a good, durable and beautiful screen door.