Germes Guide

Shade sail guide
fixing, tensioning, caring

Fixing, tensioning, cleaning, choosing the right material: 20 guides on the shade sail, from the fixed-tension sail to the rope tension shade sail. Each guide answers its question briefly first, gives the measurements from our sewing workshop in Westoverledingen (eyelets, loops, deductions) and leads on to the made-to-measure sail.

Attaching a shade sail Shade sail made to measure
At a glance

Five topics around the shade sail

Choose your topic. Each card jumps to the matching list further down, where all the guides are listed with their answer in one sentence.

Stainless steel turnbuckle set with bracket for attaching a shade sail

Fixing

House wall, posts, rafters, patio and balcony: what carries the pull and what does not.

7 guides
Mounting a rope tension shade sail between rafters

Tensioning and setup

Sequence, ropes and runner hooks: how the sail hangs taut and without sag.

3 guides
Shade sail on four posts: one corner sits lower so that rain runs off over the diagonal

Weather and care

Wind, rain, winter and cleaning: when the sail can stay up and when it has to come down.

3 guides
Agora fabric for shade sails in the shade Sand

Material, colour, ideas

Fabric, shade and solutions for patio, garden and balcony compared.

4 guides
Three stainless steel eye bolts: with an anchor for masonry, with a thread and nut, with a wood thread

Build it yourself

Sewing the sail, setting the mast, planning eyelets and fittings: what matters when you build it yourself.

3 guides
Fixing

Attaching a shade sail to a house, patio and balcony

A shade sail hangs only as securely as its anchor points. Masonry, concrete, a post in a pad foundation and the beams of a pergola carry the pull, but a gutter and a trellis do not.

Attaching a shade sail: to a wall, post, rafters or rope Four ways. Which one suits is decided by the design of the sail and the surface at your points.
Attaching a shade sail to the house wall: secure in masonry and facade On the house wall, a shade sail hangs only as securely as the surface behind it.
Attaching a shade sail to roof rafters: between or under the rafters Roof rafters usually carry a rope tension system: ropes from rafter to rafter, with the sail gliding on them.
Attaching a shade sail to the gutter: why the gutter does not hold and what carries the load instead Better not: the gutter and sheet metal do not carry the pull. What holds next to it is explained in the guide.
Attaching a shade sail on the patio: to the house wall, posts and roofed structure On the patio, the house wall, posts or masts and the rafters of a roofed structure carry the load.
Attaching a shade sail on the balcony: to the railing, parapet and wall Which fixing holds on the balcony is decided by the surface: wall, parapet, railing or roof.
Shade sail on the balcony without drilling: what holds on the railing and what does not Without drilling, it only works at points that already exist and can take a pull, usually the railing.
Tensioning and setup

Tensioning and setting up a shade sail

For both designs the sequence matters. With the rope tension shade sail, the ropes come first, then the sail.

Tensioning a shade sail: how to get a taut sail without sag Fixed at the corners or on support ropes: for both, the sequence matters.
Shade sail installation instructions: fixed tension in six steps Fix the points, measure the distances, allow for slope, set the fixings, hook in the corners, tension crosswise.
Rope tension shade sail explained: setup, sizes, fabrics and mounting locations A continuous sail that runs on two tensioned ropes with runner hooks and can be pushed together.
Weather and care

Shade sail in wind, rain and winter

A shade sail gives shade, but it is not a storm or rain roof. These three guides tell you when it can stay up, when it has to come down and how to clean it.

Shade sail in wind: what holds and what has to come down You retract moving systems early, and you take a fixed-tension sail down before a storm at the latest.
Is a shade sail waterproof and winter-proof? A shade sail can be waterproof, but none is winter-proof: take it down before winter, dry it, store it dry.
Cleaning a shade sail: by fabric, stain and season For normal care, lukewarm water, washing-up liquid and a soft brush are enough.
Choosing

Material, colour and ideas for your shade sail

Fabric and shade decide how long the sail looks the same in the sun. The values on the data sheet are comparable.

Shade sail: which material suits? Densely woven outdoor fabrics are suitable. Which one depends on rain and colour.
Shade sail: which colour suits? How well a colour lasts is measured by lightfastness according to ISO 105-B02 on a scale of 1 to 8.
Shade sail test: the checklist for fabric, hold, design and shape You check a shade sail by its fabric and its hold, both with figures from the data sheet.
Shade sail ideas for the patio: shape, fabric and colour Roof or pergola, fixed points, shade for the season or every day: this gives six solutions.
Build it yourself

Building, sewing and anchoring a shade sail yourself

If you build it yourself, you plan from the anchor point, not from the shade. These three guides cover fabric, hem, eyelets and the mast.

Building a shade sail yourself: from the anchor point to the tensioned corner Six points decide whether the sail hangs taut later.
Sewing a shade sail: fabric, hem, eyelets and allowances It needs a densely woven outdoor fabric, reinforced edges and corners that take the pull.
Building a shade sail mast yourself: planning height, distance and hold correctly Worth it if there is no fixed point for one or two corners. The mast belongs in a pad foundation.
In practice

What to look for in a shade sail: four rules from the sewing workshop

You clarify these four points before ordering. You then configure the matching sail as a Shade sail made to measure or as a Rope tension shade sail made to measure.

Design first

Permanently installed sails cover exposed locations. On steeply sloping areas the fixed-tension sail is the reliable choice, and a rope tension awning reaches its limits there. Rope tension sails can be pushed together and parked.

Decide on eyelets and loops

Eyelets with a 2 cm inner diameter at a spacing of about 30 cm, closed loops of about 40 cm: you decide both before production.

Allow for slope

Allow 25 to 30 cm of height difference per metre across the diagonal so that rain runs off. Agora is water-repellent: normal rain beads off, but with continuous or heavy rain water gets through.

Give the measurement correctly

With the rope tension shade sail, you give the length including the turnbuckles. We make the fabric 10 cm shorter, so that sail and turnbuckles together come to your measurement.

Read on

More sun protection guides

The shade sail is one of four families in the sun protection guide. There are separate overviews for awning, pergola and balcony.

Sun protection guide All families at a glance: awning, sail, pergola, balcony.
Awning guide Cleaning, installing, choosing fabric.
Pergola guide Roof, shading, curtain.
Balcony privacy screen guide Ideas and fixing to the railing.
Frequently asked questions

Frequently Asked Questions

A shade sail is a densely woven outdoor fabric that is tensioned between three or four points and gives shade. There are two designs: the fixed-tension sail hangs from its corners, and the rope tension shade sail runs with runner hooks on two support ropes and can be pushed together. Neither is a storm or rain roof: the fixed sail may stay up in normal rain, and you push the rope tension shade sail together in bad weather.

Check above all: the design that suits your anchor points; the fabric with lightfastness according to ISO 105-B02, UV protection (UPF) and water column; eyelets or loops that are settled before production; enough slope, 25 to 30 cm per metre across the diagonal; and the correctly given measurement. With the fixed-tension sail, add 30 to 50 cm per corner for the carabiner and turnbuckle.

A fixed-tension shade sail hangs statically from three or four points. It also covers steep slopes, sloping areas and exposed locations and stays up through the season. A rope tension shade sail runs with runner hooks on two tensioned ropes, between or under the rafters of a pergola or roofed structure, or without a roof on the house wall with a facade plate. You push it together when needed and free up the sky.

Allow 25 to 30 cm of height difference per metre across the diagonal. A sail that hangs level collects rain. On water-repellent Agora, normal rain beads off, but with continuous or heavy rain water gets through.

A fixed-tension sail stays up in normal weather, and you take it down before a storm at the latest. You retract rope tension shade sails in strong wind, storms and rain. Before winter, every sail is taken down, dried and stored dry.

Agora made of solution-dyed acrylic reaches a lightfastness of 7-8 out of 8 according to ISO 105-B02 and UV protection UPF 50+, is water-repellent and has a 5-year guarantee on colour retention (colourfastness). Light shades such as beige or sand hardly show fading, while anthracite and other dark shades show it first.

Sources

Last reviewed: 23.10.2026 · Reviewer: Germes-Team

Your shade sail made to measure

We sew your sail in Westoverledingen to your points, with eyelets, loops or turnbuckles and the matching accessories.

Shade sail made to measure Rope tension shade sail made to measure