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Posted By: nigelTimber frame is good in winter as it warms up quickly but can overheat in summer as there is nowhere for the extra heat to go.
Posted By: DarylPSteel is good, if you can cut down on the thermal bridging?Otherwise, beware, you may be building yourself into a problem....
Posted By: TriassicWould you go for timber frame...
Posted By: TriassicSo if factory made timber frame is the way to go, with a nod in the direction of thermal mass using dense internal walls and maybe UFH coupled to solar, who would you buy your frame from and would they build to a design by others, or do I have to buy a standard box?
Posted By: DarylPA clear external wall cavity is still required to provideventilation to the timber frame and to provide drainage for water that may penetrate the cladding.
Posted By: borpinPosted By: DarylPA clear external wall cavity is still required to provideventilation to the timber frame and to provide drainage for water that may penetrate the cladding.All the detailing I found showed the cavity *between* the insulation and the TF which defeats the object. I really did not have the stomach for a fight with the BCO to show that the risk of condensation etc was nil _and_ the risk that house insurers might baulk at the buildup. The LSF is an approved buildup already so that is why I went with it. The other reason is I was already going to use the roof system and extending it to the rest of the frame made sense.If TRADA come up with accredited detail then it will be a no brainer as a construction method - warm wall breathing inward (as discussed at length elsewhere).
Posted By: TimberWarm wall is generally a good thing for timber frame (although there are still a few problems with it).
Posted By: TimberFor instance, 89 mm stud with OSB sheathing, wood fibre board insulation fixed to the outside of that, then breather membrane, timber battens then timber cladding would be fine.
Posted By: TimberThe potential problems really only come when using a non breathable insulation material. Condensation is not a concern as the timber frame is all warm (and not subject to any meaningful temp gradient). The concern mainly comes from getting lots of water trapped between the insulation and timber frame. Detailing around windows is important to ensure that wind driven rain isn't pushed around the window and between the insulation and timber frame.
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