A pitched or slanted roof has a terrain of at least 15 but it is often much more.
Pitched warm roof construction.
A typical roof pitch in the uk for a traditional house will be 40 50 but at most it can go up to 70.
Insulating the roof above the rafters is known as warm roof insulation as the rafters are brought into the insulated envelope of the building.
An architect makes the usual decision of the pitch.
Part 1 a guide to roof construction.
Detailing a low pitch eaves the lower the roof pitch the more difficult it becomes to construct an effective eaves system particularly where roofspace ventilation is required.
One pitched roof construction method is a cut roof method.
Warm deck pitched roof the insulation is placed over the rafters and then a felt is placed on top.
Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings.
Warm pitched roof a warm roof building will make the entire structure of the building warm in an attempt to avoid any cold bridging.
This can be determined by the size of the timbers or the size of the roof.
In pitched roof construction the insulation can be placed horizontally above the ceiling level forming a cold roof.
Part 4 flat roof construction.
The thickness of insulation will vary depending.
The battening and tiling is then fixed down over.
This is more of a traditional manner in regards to cutting the timber while onsite and building up the roof by the use of rafters ridge boards joists and purlins among others.
Covers an overview of flat and pitched roofs.
The position of the insulation can be wholly above or partially between and above the rafter.
Part 3 pitched roof detail.
Roof covering insulating a pitched roof above the rafters is the common method chosen for new builds and re roofing existing detached buildings as it provides superior thermal performance for the building.
Covers flat roof materials and flat roof construction of warm and cold roofs.
Roof window surrounds can be particularly tricky to detail effectively even though the window flashings work perfectly well at low pitches.
Alternatively it can be positioned between the rafters or partially between and below the rafter.
It has s insulation layer above the rafters and immediately below its weatherproof membrane.
Warm pitched roof construction when used in roofs tyvek and airguard membranes provide optimal protection of the thermal insulation and reduce the risk of interstitial condensation enhancing the energy efficiency of the building.
