Hi Chris. I like the colour scheme and materials for your house, although a few things come to mind. Why have two different timber finishes, Merbau and Western Red Cedar? Is Merbau not available as a garage panel? Or is Western Red Cedar not available as post cladding? If they are both available for both applications, I would choose one for both applications. You mention black Sikaflex as joint filler for the cladding, and off-White mortar for bricks. Would you consider black mortar for brickwork for consistency, or do you not like the look of it? I bring these questions up because there are a lot of materials, which is great, but maybe minimising the number of colours and using them more consistently would produce a more cohesive visual outcome. I googled images for brickwork and black Sikaflex and this is the only decent one I could find quickly - just to give you an idea of how it might look.

Do you get moisture through the board lining? if so you need to look at fixing the roof from above but if you just have dust coming through than adding plasterboard between the beams would be a fast result and the labour wouldn't be expensive as the time it takes is quick and if you pay for someone to fill gaps and paint well this would take time. Ask a plaster to give you a fix quote and a the same for a painter. Again if you have any water coming through you would need to fix that first. as mentioned in the comment above I agree you can add insulation between but if you are after a quick low cost fix just plastering between the beams would be good for you.

that looks like it might be an expansion joint in a concrete wall and you might be able to fill it with a flexible crack filler and then paint over but the crack will probably reappear as the concrete expands and contracts

Preventive treatments are carried out on new and healthy wood. The operation comprises applying the product, which will create a waterproof barrier that will prevent humidity from soaking into the wood. Preventive treatments guarantee wood protection over a period of over 10 years, depending on the type of product applied. However, it is important to renew the treatment carried out regularly by a professional property maintenance service provider to guarantee and increase its effectiveness. To ensure the result, the wood must be dry and clean. To start, treat the wood with a fungicide and insecticide treatment. There are different ways to apply: By sprinkling or spraying with an electric gun equipped with a sprayer. This process consists of injecting the product into the depths of the material with a syringe tip Soaking consists of soaking the legs of furniture or very thick parts in a container containing the product. Once the wood is protected, all that remains is to apply the protective layer to make the material waterproof and impermeable to water but also to UV. In particular, you can apply a coat of paint, varnish, or anti-rot oil. How to Treat Exterior Wood: Curative Treatments Curative treatments are carried out on affected wood. The process consists of removing the disintegrated parts, repairing the damage by filling in the holes and cracks, applying a treatment product against rot, and finally coating the wood with a protective film. To remove damaged surfaces, you will need a wire brush, coarse sandpaper, and a soft brush. Brush crumbly and damaged areas with a wire brush. Then clean the surface with a soft brush. Seal the holes with putty for woods, try to learn how to fill the hole with putty in the wood; allow to dry before applying curative. Apply hardener to make the wood resistant; let dry before painting, varnishing, or oiling the furniture. There you go! Be sure that your outdoor furniture is sufficiently protected for a long time. How to protect exterior wood against rot? You are proud of your garden. To give it all its charm, you have added wooden elements here and there. But for the happiness to last, remember to pay enough attention to the protection of the wood outdoors. Otherwise, it risks being attacked by fungi. How to recognize rotten wood? To find a solution to the problem! Wood rot is thus distinguished from woodworms and other xylophagous insects. How to recognize wood attacked by fungi, what are the causes, and how to treat moldy wood? Property Service Maintenance Provider like Skilled Carpenters andPest control can help you to treat and protect wood against domestic pests like molds and termites Wood starts to rot when fungi start to grow in joints and cracks. This can happen as soon as the moisture content of the wood reaches or exceeds 20%. This mold affects the wood, which then becomes crumbly and porous. You recognize that wood is rotting when it disintegrates and falls into pieces, but also by its brown or black color and a possibly deformed layer of paint. Poor paintwork and cracks are the most common causes of mold on wood. Palisades garden sheds, wooden terraces, fences, garden furniture, and garden benches are the most vulnerable, but also for doors and windows. Because of its unsightly build, rotten wood may also lose its integrity and strength. Fungi attack the very structure of the wood. How to stop mold and repair rotten wood? The evil is already done? You must therefore stop the rotting and restore the wood to its original state. Follow these actions: First, clean up the mold by removing the rotten bits of wood with a wood chisel. Sand any leftover paint or stain all the way to the wood to remove them. Reinforce the wood with Rotten Wood Impregnation Fill the holes with Rotten Wood Filler What is wood impregnation? Your piece of wood is repaired, you now need to impregnate it. That is to say, protect it again. This treatment makes it resistant to water and fungi. You can impregnate the wood with wood filling products These penetrate deep into the wood. Once the wood has been treated, the development of new fungi is thus almost impossible. For the finish, apply a coat of paint or stain for exterior wood. Want to know more about treating exterior wood or repairing rotten wood, and what products can help you?