Sheds, Why you should maintain them.
Sheds that are constructed out of wood which is a natural material over time without any treatment will begin to age rapidly and splits will start to appear [n the cladding. Over further period of time the structure will weaken, damp will cause fungal growth adding to the decay of your wooden garden building.
Reccommended steps can prevent most problems mentioned by treating your new garden shed with a solvent based wood protective product such as Barrettine pictured below. As with most garden structures that are made with timber they naturally blend perfectly in garden surroundings and can be further enhanced when choosing the colour of your protective applicant.
Most protective treatments seals the timber so it reduces the moisture absorbed by the wood preventing excessive swelling and shrinkage that causes wood to split and knots falling out. Combined with this it contains an anti mold agent keeping the look of your garden shed in peak condition. Inside and out should be treated for maximum effect and increasing the life span of your shed.
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Maintenance of shed felt.
We do not guarantee shed felt, but we do recommend this is added into your maintenance plan for you garden building.. After any bad weather like torrential persistent rain, snow ice and strong winds.
The Reasons Why
In high wind, gust can sonetimes get uder the felt seems and lift the tacks. They only need to be raised a fraction and water will seep inside eventually causing bot and mold growth on the inside of your wooden shed. Once seeping water is first noticed, the first thing to check is the clout nails that are attaching the roof covering along the seems by hammering each tack carefully to make sure they are fully nailed in. If there are areas that have completely torn off then a total re-felt is required..
Snow and ice, as this sits on top of the building and small amounts might get under the seems, this can then freeze and force some tacks to lift causing leeks. The same method of checking the tacks by hamming is the first thing you should do when the snow and ice has cleared.
Heavy rains, this dank conditions causes the timber to swell and starts to stretch the felt especially if the roof is made of wooden planks as this material swells the most if no preservative has been applied prior.
If this is a problem and leeks keep happening the felt needs to be removed and allow the boards to dry. Apply all over the entire roof a quality wood preserver that is spirit based, allow to dry and re-felt. Alternatively if there are expensive goods inside we recommend a specialist tradesman applying a a toch on asphalt were the seems are welded together by melting giving a completely sealed area.This is a deffinate approach on large sheds that are likely to house expensive tools and electrical goods.
The roof generally in back garden sheds is made from the same materials as the floor. The factors to consider is the span of the building that is increased with width size. On a large span, supporting framework is key before any boarding is thought about. In large apex sheds the use of wooden trusses will add extra support to the roof. Thicker joists need to be put in place running the width in several places if necessary on a Pent roof to prevent any bowing in the roof.
Wooden planks that are used are strong, ,but can add significant weight to the supporting framework , which if is not robust enough will bow. As mentioned previously, rough sawn timber planks expand and shrink, all be it are relatively cheap to purchase. Care must be taken securing felt with clout nails that the do not go in between the planks as it will result in leaking. Due to the movement of this material in dank conditions, when the timber expands can tighten the felt attached on the top pulling on the clout nails and will lift them up a fraction were water can seep through. Protective solvent base treatment is essential to help prevent this problem.
Tongue and groove is another option,more expensive than wooden planks that does not have any gaps appearing as the interlocking of the tongue fits in the groove. Felt can be applied without fear of nailing it on between boards. This machined timber does not move as much as rough sawn planks and is more than adequate at 12 mm thick for a roof that will be covered over with shed felt.
Ply board is more expensive especially if you end up with large cut offs left from boarding out the roof. Great for a roof being felted as there is fractional swelling and shrinking. Quite light in weight and less stress on supporting framework.