Category Archives: insulation

insulation going into the ceiling

2013 08 13 high density fiberglass insulation is being blown into the ceiling. cellulose insulation is usually considered somewhat more environmentally benign than fiberglass; but fiberglass is still good. fiberglass has a slightly higher r-value.

netting holds the fiberglass in place until osb is nailed to the joists. to get the fiberglass in, holes are cut in the netting. the fiberglass is then literally blown into place using the hole for access.

fiberglass being blown into place

fiberglass being blown into place

 

 

 

 

 

 

installed fiberglass

installed fiberglass

 

 

 

 

 

tjis going on

tji stands for truss joist i-beam. these are usually used to support floors or roofs. some passive houses, including old hopkins road, use them to define space for insulation. blown in high density fiberglass will soon fill in between the tjis shown below.

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sculpted foamglas

2013 07 26: the foamglas has been carefully cut so that it provides the maximum insulation and the maximum load bearing surface for the walls. the pictures illustrate this.

drains for the laundry room exiting through the foamglas

drains for the laundry room exiting through the foamglas

 

 

 

 

 

 

 

 

 

sculpting for one of the laundry room drains

sculpting for one of the laundry room drains

 

 

 

 

 

 

 

the foamglas is carefully scupted to surround the drain pipes from the mechanical room

the foamglas is carefully scupted to surround the drain pipes from the mechanical room

foamglas will support the walls

2013 07 26: the photo shown the installation of foamglas, the black material, at a corner of the house. it is placed all around the perimeter of the house between the slab and the footings. this insulation will bear the weight of the walls and the roof. this construction is somewhat unusual. it is designed to provide outstanding insulation for the slab while being strong enough to easily bear the weight of the walls and roof.

foamglas insulation

foamglas insulation