H31/261 Air and vapour control membrane
H31/45 Air and vapour control membrane
H60/110 Clay roof tiling with counterbattens
H60/120 Concrete roof tiling
H60/125 Concrete roof tiling with counterbattens
H60/145 Clay vertical tiling
H60/155 Concrete vertical tiling
H60/5 Roof tiling with counterbattens
H61/110 Roof slating with counterbattens
H62/110 Roof slating with counterbattens
H62/130 Roof slating with counterbattens
H62/150 Roof slating with counterbattens
H62/5 Roof slating with counterbattens
H64/10 Wood shingle/ shake roofing with counterbattens
H64/110 Wood shingle/ shake roofing
H64/120 Wood shingle/ shake roofing with counterbattens
H64/130 Vertical wood shingle/ shakes
H64/15 Vertical wood shingle/ shakes
H64/5 Wood shingle/ shake roofing
H65/10 Reconstituted slate roof tiling with counterbattens
H65/110 Clay roof tiling with counterbattens
H65/115 Concrete roof tiling
H65/120 Concrete roof tiling with counterbattens
H65/125 Reconstituted slate roof tiling
H65/130 Reconstituted slate roof tiling with counterbattens
H65/140 Ceramic slate roof tiling with counterbattens
H65/5 Roof tiling with counterbattens
H65/8 Reconstituted slate roof tiling
J40/120 Loose laid plastics or rubber sheet damp proofing
J40/130 Loose laid plastics or rubber sheet oversite damp proofing
J40/20 Loose laid plastics or rubber sheet damp proofing
J40/30 Loose laid plastics or rubber sheet oversite damp proofing