Top tips for installing soffits and fascias

New fascias, the boards underneath the roofline supporting the edge of the roof, and soffits, boards underneath the fascias, can be replaced at any time but is often carried out when the siding of a house is replaced, and this means all updates can be coordinated for a unified appearance.

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Covered or uncovered?

According to this report in The Telegraph a home’s roofline can be the most vulnerable part, so it definitely deserves some attention. There are a few options when it comes to soffits. If it already has a cover, then the new soffit will go over the top of that. Try to use a J-channel to support the new soffit. If the soffit hollow is not covered, then you can install one, and use a J-channel to support it. If the material you are using is aluminium, then you will need to leave room at each end for expansion as the temperature varies. Quarter of an inch is usually enough, up to 5/16 inch in more extreme climates.


Soffits can be ventilated to help air circulate, or solid construction. Without venting, condensation can build up and lead to rot and venting can let in the cold air. The common solution is to go for a bit of both. You will buy soffits in lengths that need to be securely locked together, and at corners decide between a square cut or a 45-degree cut. Either way, you will need a T-channel connector. Many people find the square cut easier to install.

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The fascia should be cut to the rafter’s height and wrap the lower side of a rafter and sit on the soffit. It should be secured every two feet with stainless steel nails. A water-resistant material can be a good idea for repairs that will last many years. If you are interested in finding out more about UPVC fascias and soffits then it would be a good idea to contact experienced professionals such as Experts in the field like these can give you help and guidance on what you need to know about UPVC fascias and soffits.

Neglecting your roofline can lead to serious problems. UPVC, or non-pliable PVC, can be a great material for soffits and fascias, and withstand damp for a very long time.